Calibration is an important operation in the instrumentation industry for determining the relationship between the output(s) (or response) of a measuring instrument and the value of the input(s). This paper proposes a nonlinear calibration method based on least squares support vector regression (LS-SVR)...

Multiple-Input-Multiple-Output (MIMO) radar is recently the focus of radar research, which transmits different waveforms to illuminate the target from different antennas simultaneously. However the cross correlation of the waveforms may lead to interference between receiving signals. In this paper, we...

Projected capacitive touch screen has the advantage of wear-resistant, high transmittance, long life, low power consumption, high sensitivity, noise rejection capability and support for multi-touch .This paper studies the related technologies of projected capacitive touch screen system: full touch point...

This paper mainly compares and analyses ranging technology of communication signals and navigation signals respectively, and introduces the integration of terrestrial mobile communication base station navigation and positioning technology. Also it focuses on how to achieve precisely ranging based on...

An improved spectrum shaping iterative algorithm is proposed in this paper in order to solve a wideband waveform design. The spectrally constrained condition is set up before an optimally initial signal is obtained by constraining the amplitude spectrum of the input initial signal. With which, an existing...

Based on the analysis of the cruise booking and price data, this paper studies the problem of the cruise pricing based on the forecast. This paper builds on the voyage each week booking GARCH, accommodation was predicted, and achieved ideal effect.

In order to reduce the induced voltage of the metal sheath of high voltage single core cable and reduce the excavation area, so as to increase the transmission efficiency and reduce the cost of the project, this paper studies the induced voltage of the cable line under the condition of the laying area....

Heavy metal pollutions of soil is one of the serious problems in the mining tailing areas, therefore, it is significant to estimate heavy metal of soil in the mining tailing areas. This research take Jinduicheng Mo mining tailings, Huaxian, Shaanxi Province as the study area. A total number of 288 soil...

Recently, the grid-connected photovoltaics power stations are extensively installed. Nevertheless, to save the maintenance time, improve the safety performance, solve the complexities of traditional overhaul methods and eliminate restrictions further research is needed. Therefore, in this paper, a method...

This manuscript represents a triggering device applied on long-gap triggered vacuum switch. The time delay between the optical signal and the pulse current is about 100ns. From the image of the initial plasma captured by the high speed camera, the triggering device presented in this manuscript is reliable.

In LEO (low earth orbit Laser communication) engineering, there is a demand to design a power system of high-reliability, to ensure the life of the LEO and reliable operation. The DC/DC has been widely used in the secondary power supply in LEO engineering with its high reliability, high integration and...

Foucault's discourse include the following control principles: exclusive program of verbal taboo, the distinction between reason and madness and the truth will; Internal program of comment principle, the principle of the author, the discipline organization; The principle of the third group limited words...

This design combines the advantages of CDR CDR circuit two structures PID and PI-based clock data is based on the structure of semi-digital dual loop recovery system. Using TSMC-0.25 m CMOS process to achieve the PLL design, the operating frequency range of 1.6-2.7GHz, and successfully applied a SERDES...

Switched System is an important method of analyzing the Hybrid System. CTCS-3 is a typical Hybrid System. To express the evolution of system states driven by events and time, Switched System is introduced into the analysis of CTCS-3. Meanwhile, the CTCS-3 has many operating modes. When the operating...

According to basic electromagnetic theory, the response of a capacitive sensor depends on the structural parameters of the sensor and the dielectric permittivity between the plates. Here, the effect on the response of a capacitive sensor is investigated by changing its structural parameters. In the experiments,...

Efficient enhancement of photoluminescence from Er/O-doped silicon (Si) on silicon-on-insulator (SOI) wafer in two-dimensional (2D) airbridge symmetric slab hexagonal photonic crystal (PC) gradient double-heterostructure microcavity has been demonstrated at room temperature. A single sharp resonant peak...

For the power system economic dispatch problem, this paper takes the power system generation fuel cost as the objective function, and take into account the net loss of the power system. At the same time, it neglects the valve point effect in the process of the generation and establish power system model...

In the light of the characteristics of electricity measurement automation system in Power Company the safe protection system is researched from the three perspectives: master station communication channel and terminal equipment As for master station the safe protection system is formulated in accordance...

Hydraulic power chuck clamping force has been the main factor of the precision ultra-precision machining precision of modern CNC machine tools. To solve this problem, the designed wireless sensor system can achieve the real-time detection of chuck dynamic clamping force. The system can provide on-site...

The solar chimney and the solar collector are two important components in solar energy engineering. Solar collector is mainly used to gather solar energy. Correspondingly, the angle at which the solar collector receives the maximum solar radiation is its core parameter. While for the solar chimney, solar...

Comprehending deeply multiphase flow in saline aquifers is a precondition to solve the issues in the CO2 geological sequestration and the wettability heterogeneity is one of the main factors affecting the CO2 multiphase migration. In this paper, a Shan-Chen-type model (lattice Boltzmann method) is used...

This paper measures the infrasonic signal of a Satellite Launch event and analyzes the signal characteristics. Using four infrasonic sensors to finish the satellite launch event monitoring tests, the experimental results show that difference between the infrasonic signal of satellite launch event and...

A power quality disturbance integrated device is proposed which can simulate the voltage and current disturbance of the power system the output of the device include voltage sag, voltage fluctuation and flicker, voltage harmonic, current harmonic, three-phase voltage and current unbalance and so on....

Monitoring of methane gas concentration in the mine is directly related to the safety of coal mine production and lives of the vast majority of miners. Based on the requirement of methane gas monitoring in the mine, an intelligent methane gas alarm based on ADuC812 microcontroller of Analog Device is...

In a neutral nongrounding power system, the excitation impedance of an electromagnetic potential transformer (PT) and a ground capacitance power transmission line of an electric power system can form a resonant circuit that causes ferroresonance and endangers the security and stability of the power system....

BGA-via multi-chip module(MCM) was built by HFSS software, the return loss and insertion loss of MCM were obtained with different frequencies. The impacts of structure parameters included BGA radius, shield ring radius, the bonding pad radius and vertical hole apart from the shield hole distance on the...

With homogenization theory developing, solving some properties of a rough surface becomes more and more simple. What we studied was a two-dimensional perfectly conducting periodic rough surface with a thin cover layer. This allows for the development of an isovalent boundary condition for the effective...

Since the heat dissipation problem is harsh in high power LED lamp, in our study we suggest an optimal design method of high-power LED lamps radiator based on the equivalent thermal circuit method, we abstract mathematical model of the heat dissipation system of the lamps, then chose several key parameters...

With the development of mobile Internet, the demand for location based service highly increased. The widely used GNSS has a weakness for indoor positioning, while the Pseudolites Positioning System on the ground can achieve seamless outdoor and indoor positioning. Most of the Pseudolites Positioning...

Aiming at the main circuit structure of DC high voltage power supply, the paper compares advantages and disadvantages of the common isolated DC-DC converter topology, and then introduces the main control of full-bridge converter, and finally built a bipolar control of the whole bridge converter simulation...

In China , the number of the power station increases quickly. According to the information from the Internet, From 2001 to August 2005, State Environmental Protection Administration has approved 472 thermal power projects, and the installed capacity is as much as 344382MW.In which , 135 thermal power...

A novel method by integrating the color information and bilinear interpolation with the traditional fast tracking via spatio-temporal context learning (STC) called as C-STC is presented. Experimental results with variant videos show that the improved algorithm can track the object accurately compared...

Moisture content of seed cotton has an important effect on cotton processing and the quality of its final products quality. At present, cotton processing enterprises dry seed cotton with hot air drying, which is difficult to control and results in high energy consumption and serious pollution. Experiments...

For the common existing problems of plasma ignition system of coal-fired boiler like burner coking, cathode heads working shortly and etc., the paper introduces the commissioning and operating scheme for the plasma ignition system of supercritical coal-fired boiler in detail, which would be used for...

This paper presents a novel low power bandgap reference circuit, the bandgap reference adopts half a period working mechanism. The operational amplifier doesn’t work during the switched capacitor network sampling. And the operational amplifier works after the charge balanced. The bandgap reference runs...

With the problem of “wind power curtailment” getting increasingly serious, wind power integration has been faced with a big challenge. Therefore, to study its externality integration quantitatively can not only guide the scientific development of wind power industry, but also lay a foundation to formulate...

This paper presents a signal association algorithm based on the Doppler frequency for the problem of signals inter-associated among multi-passive-heterogeneous-sensor system, radar and ultra-short wave signals are the specifically associated objects. This paper analyses the necessary and sufficient condition...

Focused on the DOD-DOA estimation of bistatic MIMO radar, we present a method using cyclostationary broadband signal to process MUSIC algorithm. More information is carried in broadband signal and its cyclostationary property restrains Gaussian noise as well as interference from different frequencies...

CdSe was electrochemically deposited on pure Ti from SeSO32- source forming Ti/CdSe Schottky diode with deposition time 113s, 225s and 450s. SEM and current-voltage were employed to study the photo-electronic properties of the Schottky diode. The results show interesting, unexpected phenomena. The current...

In order to improve the control effect and robust performance of ABS under overload perturbation. A fourth dynamics perturbation model and brake perturbation model are established. Then theory is used to design the ABS controller through D - K iteration.A Chery vehicle is taken as the research object,simulation...

Grounding is an important technology of microwave circuits. Soldering process can realize the grounding of microwave chip. However, the solder voids in soldering can make the reliability of grounding worse, deteriorating heat conduction performance and conductive properties, resulting in an error in...

In the current market, the mobile phone screen is often used for intelligent terminals, but it is very little used in the industrial and military applications are very few. In this paper, combining TKIS-I helmet color image sonar displayed on the phone screen project, we designed a FPGA-based phone screen...

. In order to analyze the effect of uplink antenna arraying calibration synthesis, this paper explores the factors about the loss of antenna arraying combined gain from the theoretical analysis and simulation analysis on two levels. At first summary the foreign research about the experiments of uplink...

This paper presents a fault detection, isolation and reconstruction (FDIR) mechanism for the fault-tolerant system. A self-detection component is introduced to the normal dual-channel redundant system, and the component can detect the outputs of the behavior model and the nominal system model. The control...

An effective signal processing system based on improved Ensemble Empirical Mode Decomposition (EEMD) method is proposed for the analysis of extracting respiration from Photoplethysmography (PPG). The proposed improved EEMD method adaptively adds the noise intensity by calculating the average sub-peak...

The clean room with eliminating electrostatic was improved to avoid affecting electricity and impurities on properties of materials by tempered glass used as the main framework, electrostatic eliminator and HEPA built in. The effect on eliminating electrostatic and removing dusts was studied by changing...

Sensors, a variety of pulse powers and nested projectiles were used to improve speed and efficiency of electromagnetic emitter. The influence of emission voltage, coil number and distance triggered on exit velocity of projectile was analyzed by experiments and simulations. The results show that speed...