光学精密工程2009，Vol.17Issue(10)：2594-2599,6.
卫星数传通信仿真系统设计与实现
Design and implementation of satellite data traffic communication simulation system
摘要
Abstract
A design method for a satellite data traffic system was developed by using a band-pass sampling theorem,the simulation system sampling rate was designed,from which the lowest equivalent carrier wave formula was deduced.The deduced formula could be applied to other simulation systems.At the same time,equivalent design methods for time and frequency of the practical system were presented.According to the system function structure,the system software frame and running threads were studied.Finally,corresponding function models were realized.Two work modes including an independent running and a network controlling were provided to simulate integrally functional models required by the transmitter and receiver of the satellite data-traffic system including radio modulation.Based on the evaluation model,the frequency spectrum,eye pattern and relation of Bit Error Ratio (BER) and Signal to Noise Ratio (SNR) were presented.Experimental results show that when the SNR is equal to-2.52 dB,the BER of this simulation system is 10~(-5).The simulation results are basically in agreement with theoretical values.关键词
卫星通信/采样/仿真等效/级联编码/调制解调Key words
satellite communication/sampling/simulation equivalence/concatenated coding/modulation demodulation分类
信息技术与安全科学引用本文复制引用
郭旭静,王祖林,涂歆滢,许建忠,赵毅寰..卫星数传通信仿真系统设计与实现[J].光学精密工程,2009,17(10):2594-2599,6.基金项目
中国空间技术研究院项目 （）
北京航空航天大学青年创新基金项目 （）
