基于卫星测试的多路信号产生技术

Producing multiple signals for satellite's testing

为全面验证通信卫星有效载荷的功能和性能,整星综合测试时需要能产生包括通信信号或雷达信号的信号源,需求信号带宽常超出通用信号源的能力范围。经过研究,利用任意波形发生器(AWG)和矢量信号发生器,可以产生满足测试需求的信号。在充分分析通信卫星有效载荷测试需求的基础上,以M8190A和E8267D为硬件平台,使用LABVIEW软件环境搭建出"波形生成与设备控制软件",形成多路信号产生系统。为验证系统的正确性,模拟产生三种测试情景下的复杂信号,经实验测试分析,所产生信号均满足设计要求。此方案能用于通信卫星有效载荷综合测试中,满足其使用需求。

A signal generator which could generate communication signal and radar signal is required in order to verify the function and capability of payload of communication satellite.The span of desired signals cannot be met by ordinary signal generator,nevertheless.The signals can be generated by using Arbitrary Waveform Generator(AWG)and vector signal.Based on the analysis of communication satellite’s needs,a multiple-signal producing system is fulfilled by the hardware of M8190A and E8267D;and LABVIEW software is adopted to establish the software platform of waveform generator and equipment controlling.Three kinds of complex signals are produced and tested to validate the multiple-signal producing system.The system can be applied in the testing of communication satellite.