一种利用通用仪器实现高速率数传信号产生的方法
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摘要
在新一代中继卫星系统验证试验中,需要模拟不同频段的高速数传信号,这些数传信号的调制方式有BPSK、QPSK以及8PSK,对应的码速率有1Mbps~300Mbps不等。根据上述需求,提出一种利用信号源、任意波形发生器等核心仪器产生多种调制方式、多种速率的卫星数传信号实现方式。这种方法主要通过Matlab编写二进制bin文件输入给任意波形发生器,任意波形发生器将收到的文件以波形的方式输出给矢量信号源进行调制,最终得到所需信号。经过实验室测试以及实际试验验证,该方法获得的数传信号系统搭建简单、通用性强,同时节约了大量用于专用地面测试设备的科研经费。
In the new generation Tracking and Data Relay Satellite System test,different carrying frequency of high speed data transmission signals will be needed,which include BPSK,QPSK and 8PSK,with data rate from 1Mbps ~300Mbps. For the testing requirement,this paper will present a method to generate data transmission signal with multiple modulation mode,in different carrying frequency,using signal generator and arbitrary waveform generator etc. This paper depicted a method to generate a serial given binary data by Matlab stored in. bin file,which will be sent to arbitrary waveform generator,and then the instrument output to vector signal generator,thus we will get the modulated signal. The signal generated through above method is exactly identical to requirement,and satisfy system test. The method has advantages of simple in equipment set,favorable practicability,flexible modulation mode,remarkably decrease the cost.
In the new generation Tracking and Data Relay Satellite System test,different carrying frequency of high speed data transmission signals will be needed,which include BPSK,QPSK and 8PSK,with data rate from 1Mbps ~300Mbps. For the testing requirement,this paper will present a method to generate data transmission signal with multiple modulation mode,in different carrying frequency,using signal generator and arbitrary waveform generator etc. This paper depicted a method to generate a serial given binary data by Matlab stored in. bin file,which will be sent to arbitrary waveform generator,and then the instrument output to vector signal generator,thus we will get the modulated signal. The signal generated through above method is exactly identical to requirement,and satisfy system test. The method has advantages of simple in equipment set,favorable practicability,flexible modulation mode,remarkably decrease the cost.
引文
[1]张展张晓林胡建平张帅.星地链路高速数传系统的研究[J]载人航天,2012,18(3):1674-5825.
[2]Key sight(原Agilent).利用Matlab产生用于A/D测试的波形文件技术资料[Z].
[3]王坤良,廖小海,王飞.高码率通用数字化调制技术研究[J]遥测遥控,2011,31(1):41-47.
[4]窦宇洋,郑林华.基于高速数传的卫星通信调制的设计[J].微处理机,2004,5:23-30.
[5]邓建华.高速数传系统中的直接数字射频调制/解调技术[D].成都:电子科技大学.
[6]丁元明李花芳刘春玲周华宇.卫星通信高速输出传输系统设计[J]计算机工程,2012,38(9):10000-3428.
[7]朱红郑小松黄普明.遥感卫星高速数传信息流设计[J]中国空间科学技术,2013,1000-758X.
[8]刘宏宇杨军刘小峰张尔扬.基于联合映射的高速数传发射机设计及其查找表法实现[J]飞行器测控学报,2006,26(3):117-122.
[9]Key sight(原Agilent).N8241A Arbitrary Waveform Generator技术资料[Z].
[10]Key sight(原Agilent).E8257D/E8267D PSG模拟信号发生器技术资料[Z].
[2]Key sight(原Agilent).利用Matlab产生用于A/D测试的波形文件技术资料[Z].
[3]王坤良,廖小海,王飞.高码率通用数字化调制技术研究[J]遥测遥控,2011,31(1):41-47.
[4]窦宇洋,郑林华.基于高速数传的卫星通信调制的设计[J].微处理机,2004,5:23-30.
[5]邓建华.高速数传系统中的直接数字射频调制/解调技术[D].成都:电子科技大学.
[6]丁元明李花芳刘春玲周华宇.卫星通信高速输出传输系统设计[J]计算机工程,2012,38(9):10000-3428.
[7]朱红郑小松黄普明.遥感卫星高速数传信息流设计[J]中国空间科学技术,2013,1000-758X.
[8]刘宏宇杨军刘小峰张尔扬.基于联合映射的高速数传发射机设计及其查找表法实现[J]飞行器测控学报,2006,26(3):117-122.
[9]Key sight(原Agilent).N8241A Arbitrary Waveform Generator技术资料[Z].
[10]Key sight(原Agilent).E8257D/E8267D PSG模拟信号发生器技术资料[Z].