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引言调频接收机门限性能的改善问题仍然是很重要的。在深空应用中,要求以有限的信号功率进行极远距离的通讯,显然需要这种改善。由于这种需要,调频反馈已成为改进普通调频鉴频器的一种方法。参考文献[3]对通讯系统中调频反馈的现状作了综合性的评论。到目前为止,所进行的工作中,大部分都是基于在调频反馈环路中应用普通调频鉴频器的。文献[3]中,已广泛地列出了有关文献目录,本文不再一一列举。
Introduction The problem of improving the performance of the FM receiver threshold is still important. In deep space applications, the need to communicate over very long distances with limited signal power obviously requires such an improvement. Because of this need, FM feedback has become a way to improve common FM discriminators. Reference [3] made a comprehensive comment on the status of FM feedback in the communication system. So far, most of the work that has been done is based on the application of a common FM detector in the FM feedback loop. Literature [3], has been extensively listed in the bibliography, this article is no longer enumerated.