摘要
根据测控技术发展要求,对宽带下行遥测信号进行非相干角误差解调是必须解决的技术问题,据此设计了一种双通道非相干解调方案,截取小部分带宽内的信号进行角误差解调,同时介绍了和、差通道相位校正方法和时延调整方法,阐述了信号带宽的截取原则,并通过实验验证了方案的可行性,得到了该方案所能达到的跟踪灵敏度。介绍了该方案的应用范围。
With advancing of TTC technology,it is obligatory to solve the problem of non-coherent demodulation of angle-error from broadband remote measuring signal.Therefore,an approach of double-channel non-coherent demodulation is designed,with interception of signals from a small part of band.And means on redressal of phase and time-delay are also introduced,as well as fundamental of intercepting band.Experiment results validate the feasibility of this approach and provide tracking sensitivity.Finally,application area of this approach is presented.
出处
《无线电工程》
2010年第8期50-51,55,共3页
Radio Engineering
关键词
宽带
双通道
非相干解调
跟踪灵敏度
broad-band
double-channel
non-coherent demodulation
tracking-sensitivity
