This paper presents a new greedy algorithm for joint sparse recovery, called adaptive threshold simultaneous orthogonal matching pursuit (AT-SOMP). In this algorithm, an adaptive threshold is designed based on subspace decomposition to stop the iterative process, during which the support of target signal...

By using the theory of point coloring in graph theory, the algorithm in this article converts the relationship among base stations to the relationship between the vertices and lines in a graph, performs the point coloring for the great connecting diagram on the basis of the thought of the wheel diagram,...

The object of spectrum assignment is to build its own ordered spectrum environment and maintain uninterruptedly spectrum resource control. In this article, we build a mathematical model and put forward the hybrid TD (table dispatching method) and the AD (auxiliary decision method) algorithm. The results...

Traditional PTZ tracking system focus on tracking algorithm, but PTZ camera control is not taken seriously and the control method has the large deviations. The algorithm for PTZ camera control is defined according to the target position which is achieved by the tracking algorithm in the image, calculates...

In this paper, an acquisition algorithm is discussed in parallel combinatory spread spectrum (PCSS) system. The algorithm model is first built. Then, an improved algorithm utilizing multiple correlation peak accumulation under low SNR is proposed. The simulation results show that Doppler offset and PN...

The current study synchronization algorithm based on cyclic prefix, requirements of cyclic prefix length cannot be greater than OFDM the 1/4 of the symbol timing synchronization, otherwise, the system timing synchronization error will be significant. Aiming at this problem, this paper again by changing...

The present study of the synchronization algorithm based on training sequence, has a small peak value easily confused with accurate timing synchronization peak value, resulting in error occurs and so on in timing synchronization. To solve this problem, this paper redesign the structure of training symbols...

This paper investigates optimal network recon?guration problem considering data uncertainties, with the integration of distributed generation (DG) in distribution grid. The proposed network reconfiguration formulation is formed as a multi-objective optimization problem. Through normalization of each...

Most of routing algorithms for On-chip communication are neither application-aware nor routing packets using multiple paths. In addition, they hardly consider link bandwidth variation resulting from widely applied global asynchronous local synchronous (GALS) mechanism. In this paper, we propose a bandwidth-based...

In this paper, we propose a synthesis method based on basis. We have tested the proposed algorithm on a set of the reversible benchmark circuits. Compared with existing synthesis method, this heuristic reduces area 9% on average.

The common localization algorithms of microphone array is based on linear array or circle array which is unblocked (there is no block between sound source and microphone). This paper we research the sound localization algorithm based on helmet-mounted microphone array which is a kind of blocked array...

A multi-restart iterated local search (MRSILS) algorithm is introduced for the Split Delivery Vehicle Routing Problem (SDVRP). The initial solution is generated by the GENIUS and applied the local search procedure by removing one node from its current route and inserting it into the best locations, with...

To get rid of these traditional frameworks for discovering frequent association patterns, this paper proposes an algorithm of frequent association patterns mining based on binary information granule, which is mainly different from the Apriori framework and the FP-growth framework. The algorithm generate...

In view of the problem of modulation recognition algorithm existing about low recognition rate under environment condition of low SNR, the algorithm of first-order cyclic moment are first presented used in band signal of VHF modulation classification recognition in this paper and the recognition rate...

Aiming at the premature problem of the Particle Swarm Optimization (PSO), an improved algorithm based on dynamic mutation strategy named Lowdiversity and Highdiversity Dual Mutation Factors Particle Swarm Optimization (LH-DMPSO) was proposed. The dynamic mutation strategy enhanced particle diversity,...

Crosspoint buffered crossbar switches have gained much attention due to simple distributed scheduling algorithms. However, almost all the algorithms proposed for buffered crossbar switches either have unsatisfactory scheduling performance under non-uniform traffic or poor service fairness between input...

Collaborative filtering algorithm is one of the key technologies of the current e-commerce recommendation system, in which the effect of similarity measure directly determines the accuracy of the recommendation system. An improved method of similarity measure and the corresponding collaborative filtering...

Pairwise testing is an effective combinatorial test generation technique that can generate tests covering all pairs of parameter values. Genetic algorithm has been used for pairwise test generation by researchers. It can often produce smaller test suite, but typically require a longer computation. To...

In order to analyze the delay performance of aggregate traffic, this paper proposes a new algorithm for the End-To-End statistical delay bound of Converged Network with aggregate flows using the theorem of the moment generating function. The results show the algorithm has more Effectiveness and Superiority...

Reactive power dispatch, which may have many local optima, is an important and challenging task in the operation and control of electric power system. This paper presents a Self-adaptive Differential Evolution hybrid Particle Swarm (SaDEPS) optimization algorithm for optimal reactive power dispatch problem....

The digital fountain is a network encoding technology of an essentially infinite of encoded symbols, and LT codes is a class of codes that are useful in implementing an ideal digital fountain. Based on analysis of existing LT decoding algorithm, an improved method is proposed. At each encoded symbol...

With the wide-spread use of digital videos, quality considerations have become essential, and industry demand for video quality measurement standards is rising. In this paper, we proposed a no reference video quality metric for 4K-UHD videos in the compressed domain. As video coding parameters which...

The improved energy detector in the Cognitive Radio Network is modified by replacing the squaring operation of the received signal amplitude in the conventional energy detector with an arbitrary positive power p. In this paper, the cognitive radio networks take a decision of the presence or absence of...

High-speed mobile wireless communication system always goes through the doubly selective wireless fading channels, which seriously affects the performance of communication systems. In this paper, a non-coherent chirp spread spectrum (CSS) communication method is proposed based on CORDIC algorithm and...

In view of the security issue of the simultaneous wireless information and power transmission (SWIPT), this paper presents a secrecy SWIPT communication system based on code division multiple access (CDMA) architecture. The transmitter uses different spread spectrum polynomials to spread spectrum information...

Software-defined network (SDN) has received great concern because of its prominent advantages in some aspects such as high flexibility, programmability and dynamic management, etc. Recently, some works begin to apply the concept of SDN in mobile networks to make the networks more open and agile. However,...

With the development of wireless communication and computer networks, wireless network has a very wide range of applications on instruments to improve information acquisition and processing capabilities. A peristaltic pump controller with MCU is designed. The controller is constructed with the working...

Characteristics of a rectangular waveguide array with a frequency-selective shield of semielliptical shape with expansion of an operating band are investigated. It is shown that the region of transparency of the shield displaces down in a frequency in a comparison with the plane infinite frequency-selective...

The extremely high sampling rate is a challenge for ultra-wideband (UWB) communication. In this paper, we study the compressed sensing (CS) based impulse radio UWB (IR-UWB) signal detection and propose an IR-UWB signal detection method based on compressive sampling matching pursuit (CoSaMP) algorithm....

In the surface stress detection system of the mine hoist machine drum, the wireless sensor nodes placed on the drum need to be powered by a battery. Since the sampling frequency is high and the wireless transmitting and receiving data is enormous, the battery needs to be replaced very frequently. To...

In wireless sensor networks, the average cycle method is used to analyze the proposed protocol: the discrete time non-persistent CSMA protocol with functions of monitoring and multichannel mechanism based on binary tree conflict resolution; accurate mathematical expressions of related indicators are...

In this paper, we propose an efficient soft iterative decoding method for raptor codes, which are customized for satellite broadcasting systems. The raptor codes presented in this paper are composed of a systematic LDPC code concatenated with another systematic Luby transform (LT) code. The outer codes...

Transmission control protocol veno is a wireless transmission congestion control algorithm which can better distinguish different loss. It determines whether the packets random loss or congestion loss through calculate to the packets number of backlog in the network. However, transmission control protocol...

To decrease the Inter-Symbol Interference (ISI) for the frequency selective channel at low SNR, a spectrum combining technique based on average phase from the multiple sensors without synchronization is proposed. The combining signal’s phase will converge to the average phase instead of the value of...

In order to solve channel estimation problem in OFDM (orthogonal frequency division multiplexing) systems, a decision–directed method is proposed for channel estimation and equalization based on OFDM. The proposed method uses a received subcarrier-symbol to represent the competitive neural network, uses...

To address the contradiction between data aggregation and data security in wireless sensor networks, an integrity-assured concealed data aggregation scheme is proposed based on the privacy homomorphism and the aggregate message authentication code techniques. The proposed scheme provides both end-to-end...

A novel compact wideband circularly-polarized (CP) helix antenna is presented in this paper. Unlike conventional helical geometry, our design adopts a tapered metal strip which is rolled into a conical shape and is simply fed by attaching to a 50? coaxial cable. All the configuration parameters are optimized...

Spatial Modulation (SM) is a recently emerged Multiple-Input Multiple-Output (MIMO) technique, which has been proved to be low-complexity and more energy-efficient compared with classical MIMO techniques. As an entirely novel hybrid modulation scheme, the performance of SM is highly dependent on the...

The software engineering is applying the engineering discipline to the design, development, maintenance of software. In this paper, a dual environment design is introduced to prove the power of the software engineering to integrate the advantages of two different environments (VB.NET and MATLAB). The...

The main research in this article is wireless sensor network design problem about radar engineering vehicle. The core of the research in the text relates to a multi-sensor energy nodes arrangement based and covering algorithm. Firstly, Sensor nodes arrangements and coverage area was descript in this...

In this paper, approximate formulas are obtained for the monostatic and bistatic diagrams of radar cross-section of waveguide Van-Atta array considering excitation and propagation of higher types of waves in tracts. Their contribution to the scattered field is studied. The required number of higher types...

In order to obtain the performance of high gain and omnidirectional radiation pattern, an antenna array composed of four elements is proposed in this paper. The antenna achieves a bandwidth of 8.5% (190MHz) for a return loss (RL)

In order to further improve the communication efficiency and communication rate of space laser communication, we used Circle Polarization Phase Shift Keying (CPolSK) and Circle Polarization Differential Orthogonal Phase Shift Keying (CPolDQPSK) modulations to adapt to the demands of the rapid development...

Rocky desertification is a typical type of land degradation in the Southwestern China. It has great economical and ecological implications for the local people. Landsat images for Qingzhen city of Guizhou Province collected in 2000, 2005 and 2010 were used for Karst rocky desertification monitoring....

With big projects implementation, such as space station and cargo spacecraft in orbit increasing the dosage of the secondary power supply, the requirement of increasing the for reliability, used in great quantities however on-orbit secondary power supply of power MosFET can only conservative derating...

A new 40kVA, 400V high-temperature superconducting (HTS) controllable reactor of transformer type has been designed, built and tested. The reactor has totally 3 windings and utilize Bi2223 HTS materials to wound the inside two windings which are responsible for the adjust of the reactor’s reactance....

The location and fine adjustment of the center frequency as well as the fine adjustment of power in a resonance loop remain a challenge in the field of voltage-controlled oscillator (VCO) design. Firstly, when the conditions of stable oscillation and the VOC with certain types of tuning bandwidth are...

This paper examines the reactive power control capability of doubly fed induction generator connecting to distribution grid with and without the inclusion of capacitor banks. The dynamic response characteristics of the wind power generator in the case of fault in the network to assure the secure and...

The zero crossing detection is essential in twelve sensors-less control using back-EMF. To increase output power of Brushless DC motor (BLDCM), traditional twelve step control has extended active angular period. It has drawback which become unstable the performance of the drive system in rated load condition...

In electric power steering (EPS), spoke type brushless ac (BLAC) motors offer distinct advantages over other electric motor types in terms torque smoothness, reliability and efficiency. This paper deals with the shape optimization of spoke type BLAC motor, in order to reduce cogging torque. This paper...

Recently Line Start Permanent Magnet Machine (LSPM) is a well-known motor due to its technical advantages in academic and industrial sector. The LSPM combines a permanent magnet rotor that allows higher motor efficiency during synchronous operation, and an induction motor squirrel cage rotor for starting...

The broadband performance of quarter wave plate circular polarizer based on FSS is presented for high frequencies applications. Currently, the transmission loss and broadband of circular polarizer at desired frequencies is important issue for high frequencies application. Here, we are introducing some...

Electric energy metering system consists of watt-hour meter, voltage transformer and current transformer. Hence, the error of electric energy metering system should be analyzed from the three parts. Aiming at the measurement accuracy of the power metering system under harmonics, the equivalent circuits...

The purpose of this paper is to improve low voltage ride through (LVRT) capability of doubly fed induction generator (DFIG).First, this paper gives expressions of the stator flux and rotor current during the grid fault occurrence and clearing by solving the mathematical model of DFIG. The results of...

The four leg shunt active power filter has strong ability of harmonic and neutral current compensation, and is especially suitable for three-phase four-wire system harmonic suppression. At present the single inductor filter is usually used in four leg shunt active power filter, but the single inductor...

This paper presents an improved high-gain amplifier circuit with low-frequency servo loop to remove DC offset and 1/f noise in UHF RFID receiver. Compared to AC coupling amplifier, the circuits can overcome DC saturation and reduce the distortion of the baseband signal in various data rate. Based on...

Autonomous Underwater Vehicle non-contact charging system using a separate structure?When the technology is used in the underwater environment, the inductive coupled power transmission system will produce a gap and eccentricity under the influence of the water shock, causing the coupling state changed,...

Based on front wheel steering vehicles, the ideal yaw rate model was constructed. Four-wheel (4W) steer-by-wire control model of two-degree-of-freedom (DOF) was taken as the study object, according to characteristics of vehicle constant speed and steady-state conditions, the zero sideslip angle and idea...

With the neutral-point-clamped (NPC) converter widely applied to direct-drive wind energy generation system, wheather to guarantee the dc-link neutral-point potential (NPP) balance has a crucial influence on the system. Research on grid-side NPC three-level converter, firstly, this paper established...

Thermoacoustic engine technology has been applied to convert heat energy into acoustic energy for the purpose of electricity generation. However, linear alternators are relatively expensive. Recently, SCORE (www.score.uk.com) has successfully developed 22.7 watts of electricity power using a Thermo-Acoustic...

We proposed a fluorescent micro-sphere with diameter of 6 µm was manipulated into a micro-tube with inner diameter of 6.2 µm. The Whispering Gallery Modes (WGMs) of fluorescence resonance were observed by 532nm laser pumping the micro-spheres-micro-tube system. Another micro-sphere with the same diameter...

STATCOMs are installed in Power grids all over the world with its powerful reactive power support and other various functions. The STATCOM simulation technology is also promoting greatly. FPGAs, as a newly processor, are considered in STATCOM simulation to realize the small time-step, which could increase...

On the base of reversible sequential circuits, this paper studies the Built-in self-test vector generation method, analyzes the method of LFSRs that generate pseudo-random sequences. Using reversible D Flip-Flops, we build a LFSR pseudo-random sequences generator to realize Built-in Self Test for reversible...

Among the micro-cladding integrated circuit-based manufacturing equipment, we use closed-loop control of the laser output control unit to precisely control the laser power and change the power of the laser beam. Equipment adopt galvanometer control card and AT89S52. Method of communication using RS232...

LC parallel resonance circuit, the equivalent impedance is purely resistive and the value of the maximum, by using this feature, the resonant circuit in the integrated operational amplifier feedback resistor position, can be at the resonant frequency to achieve specific signal of a frequency selection...

In this paper, a 1.9 GHz high efficiency power amplifier (PA) for wireless applications is present. The PA is a two stage class-F power amplifier. The drive stage is self-biased cascode structure and the output stage is common source. The PA is designed and simulated in 0.18 ?m silicon-on-insulator (SOI)...

In recent years, with the shortage of energy supply and tremendous of environmental pressure in China, the price of primary energy such as coal continues to rise, as well as the electricity price. However, the adjustable amplitude and frequency for residential electricity are lower than other industries....

In the Internet world, when people access to the information, they are also providing information to others. Therefore, how to find valuable information from the vast amounts of information in order to meet the user's needs, and how to find and enjoy the valuable information by the required users, have...

The design uses the electromagnetic sensor for measuring the speed of DC motor, using 89C52 SCM and Pulse Width Modulation(PWM) software design of the control system for speed control of DC motor for the ratio of air and by the LCD display circuit shows the value of speed, the drive to control the speed...

In modern smart grid, smart meter which has replaced human operators to do the power measuring work becomes very popular. However, the application of smart meter will leak power consumption data to untrusted attacker. The exposure of these data will be dangerous to users’ privacy. Only privacy related...

If tire a little abnormal condition, tire is important one of components in which driver and passenger was effected safety. But there can be a variety the tire problem, there will generally be divided normal wear and abnormal wear. Wear cause of tire is various causes, such as lack of tire pressure,...

Vehicle on-board diagnostics and vehicle information obtained from devices mounted on road infrastructures, detectors located along the roadside are pivotal to Intelligent Transport Systems services including real time management of driven information. The value of data from driven information has a...

In our country, irrigation mode in the greenhouse is still flood irrigation, which not only wastes water resources in short supply, but also restricts the increase of the crop output and the improvement of its quality in the greeenhouse. The paper used sensor technology to real-time do acquisition of...

Intelligent Residential District has been common life, as the digital life develops. Broadband over Power Line plays an important role in intelligent residential district, for its communication reliability and easy-constructed. The paper analyses the traits of Broadband over Power Line, introduces the...

At present, the physical education in elementary and secondary school lacks real-time data acquisition system, which resulted in obstacles to relevant researches. In this paper, a real-time sports data acquisition system for multiple students is proposed. Combined with wireless communication technology,...

In order to make video-monitoring camera output high quality video in a cabin with high temperature, it is very necessary for the temperature control circuit to drive heat sink and fan at the appropriate time. Moreover, quantitative analysis of the cooling effect is more important so as to get the thermal...

Interactive boards are usually used for the smart classrooms where both teachers and students can learn the lessons interactively through the boards. However, the current prices of these boards are relatively high; 4,500-7,000 USD. This paper proposes an alternatively low cost interactive board using...

In this paper a distributed testing system is designed, which provides a mechanism of node communication, test script deployment, test scheduling, execution-driving and test result collection in distributed environment. A workload model is established, by which testers can describe the performance testing...

In recent years, many experts and the media frequently said that the "big data" era is coming and innovation of network education also is inevitable. Facing the era of big data with the overwhelming mass data, it cannot be avoided in the process of difficult problems in the future education reform. It...

As the increasingly popularization of badminton, traditional badminton teaching mode cannot keep pace with increasingly fast-paced urban life today. In this paper we introduce a newly developed badminton learning platform. It is convenient for effective learning and communication since the limitation...

This paper designs a indoor environmental quality monitoring system, in which indoor environment parameters, such as temperature, humidity and PM2.5 density can be gathered, transmitted and displayed. Arduino, a open-source hardware and software platforms, is used to access sensors. With the help of...

Government network security issues have become increasingly prominent. In this paper, after analyzing the existing government network security system of Yunhe county government network, we pointed out that the threats to the status quo of the government network security. And then we proposed specific...

The new generation of navigating and positioning system which used a more effective BOC modulation, has more advantages such as smaller crosstalk with BPSK, anti-fading ability etc. This paper describes the principle, performance of binary offset carrier (BOC) modulation, and the characteristics of spread...

It is important to improve the efficiency of identity-based multi-signcryption schemes. There already have some schemes proposed. In this paper, we present an efficient identity-based multi-signcryption scheme which uses the bilinear pairing on elliptic curves and combines identity-based encryption algorithm...

The distributed seismic data acquisition system is a critical component to telemetry digital seismograph, while the performance of digital seismograph is subject to the performance index of this data acquisition system. A distributed seismic data acquisition system with high accuracy and low power dissipation...

A high precision clock system is required in the external target experiment of the Cooling Storage Ring (CSR) project in the Heavy Ion Research Facility in Lanzhou (HIRFL). Considering that the detectorsare located in different places of the experimental hall, a high quality clock signal is required...

A novel detection for stealthy target model F-117A with a higher aspect vision is introduced by using Stratospheric Balloon - borne Bistatic radar system. The potential problem of proposed scheme is platform instability impacted on the balloon by external wind force. The flight control system is studied...

In recent years, feature learning methods based on unsupervised learning get more and more attention. Until now, Unsupervised feature learning has been applied to solve many problems such as detection, recognition and classification. In this paper, we propose a deep feature learning method based on Sparse...

Zhejiang province communication resource management system project preliminary established the telecommunications infrastructure database, realize the Digitization Management Communication Management Bureau of Zhejiang Province on the communication resources in the province, the tower, the base station,...

The subway door is one of the most important part of the metro vehicle system .The operation reliability of this door affects the quality of safety, economy and convenience of metro transportation. In this paper, failure modes of the door system were analyzed based on maintenance history of Guangzhou...

Radiotherapy is one of the most important therapeutic methods for tumor. As more and more therapeutic methods been put forward, rigorous requirements have been set on the real-time performance, stability and maintainability of the radiotherapy equipment control system. This article designs a Four-Tier...

For scratches and other defects may be generated in the vehicle seat production process, an on-line detection method is introduced based on machine vision. The defects are extracted by graying, image filtering and image segmentation based on K- means clustering region growing algorithm. The illustration...

The instrument uses a single chip relative humidity and temperature multi sensor SHT11 module comprising a calibrated digital output, which can measure temperature and relative humidity of environment at any moment, timely and real time. It displays temperature-humidity value, dew point value, date and...

The distributed radar system is a solution to detect small targets in the space. But how to effectively accumulate the received signals from different radar stations is a challenging work. The signals influenced by different time-delay, Doppler frequency and reflection coefficient will have different...

This article mainly studied the non-linear multi-user MIMO system precoding technique in view of the precoding technology. On the basis of reviewing and summarizing predecessors' work, combining with the actual situation, it studied nonlinear precoding in TH (Tomlinson - Harashima) precoding. And it...

An efficient multi-level feature fusion descriptor for human action recognition is introduced in the paper. The descriptor is built by the low-level features, which include three trajectory features, HOF and SIFT, combination with the mid-level class correlation feature. Inspired by the recent popularity...

The aim of this study is to propose a simple operation and highly practical measuring instrument. In response to conventional mechanical measuring wheels that mainly measure distance mechanically and inspect wheel wear visually, however, they are unable to monitor it effectively. As the wheel tends to...

The traditional information systems analysis, basically from a technical point of view, cannot effectively describe the real object systems. From the hierarchical structure of complex adaptive systems point of view, proposed multi-level clustering algorithm based on the flow of information, used to design...

A method for detection and stereoscopic measuring lane markers for safety driver assistance was proposed. Firstly, it was concerned on selecting an appropriate limited region of interest by OTSU segmentation, which would be candidate areas for lane boundaries detection by Sobel and piecewise fitting....

In recent years, collaborative warehouse is becoming a new trend of the warehousing industry. This paper aims to build a cloud warehousing system consists of information system and operating system, based on internet of things, cloud computing, control technology and communication technology. The system...