Study of PN-code Capture Method with High Dynamic and Low SNR in Near Space
- 10.2991/lemcs-15.2015.267How to use a DOI?
- Near space; FFT; PN-code capture; High dynamic; Low SNR
Considering the requirement of building near space tt&c system, it designed a parallel PN-code capture method based on FFT. First, it gave a clear derivation of the principle of parallel PN-code capture method, analyzed the capture performance in detail, and finally proved the feasibility of the method through simulation experiment. This method on the one hand weakens the influence of the doppler frequency, and reduces the capture dimension from 2 to 1. At the same time, it achieved the related operations, the relative value of local code and receiving yards was acquired. By this, some special requirements were satisfied and the circuit was simplified, capture speed was improved very much. On the whole, the method overcomes the poor performance under low SNR of traditional capture method, has a good prospect of engineering application.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Ke Sun AU - Xiaomin Hou AU - Qiang Zhao PY - 2015/07 DA - 2015/07 TI - Study of PN-code Capture Method with High Dynamic and Low SNR in Near Space BT - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science PB - Atlantis Press SP - 1337 EP - 1342 SN - 1951-6851 UR - https://doi.org/10.2991/lemcs-15.2015.267 DO - 10.2991/lemcs-15.2015.267 ID - Sun2015/07 ER -