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A、引言接收机的范围包括信号从天线输出直到雷达显示器为止。本讲将分两部分来讲:即一般部分(占接收机的绝大部分)和信号处理机部分。信号处理机是现代雷达接收机的一个重要组成部分,许多ECCM技术都可以用在信号处理机中。要提到的接收机ECCM的项目很多。事实上,接收机的ECCM项目可能有雷达所有其它部分的ECCM项目合起来那样多。有些人认为,ECCM工作的重点应放在雷达接收机。的确,接收机是非常重要的,但雷达的其他部分无疑也是很重要的。一般来说,接收机的修改和翻新较其他部分(如发射机)更为容易。为方便起见,本讲将按以下顺序进行叙述:“前端”,混频器和中频放大器,检测
A, Introduction The range of the receiver includes the signal output from the antenna until the radar display. This talk will be divided into two parts: the general part (accounting for most of the receiver) and the signal processor part. Signal processors are an important part of modern radar receivers and many ECCM technologies can be used in signal processors. There are many projects for the receiver ECCM to be mentioned. In fact, the receiver’s ECCM project may have as many ECCM projects in all other parts of the radar. Some people think that the focus of ECCM work should be on radar receivers. Indeed, the receiver is very important, but the rest of the radar is undoubtedly also important. In general, receiver modifications and refurbings are easier than other parts, such as transmitters. For convenience, this talk will be described in the following order: “Front End”, Mixer and IF Amplifier, Detect