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一、引言用雷达搜索和跟踪地面和海上目标时,最大的问题是如何检出埋在杂波(背景噪声)中的目标信号。要解决这个问题就必须抑制杂波,大力研究杂波抑制装置,诸如恒虚警率接收机,以及发展动目标显示技术等。过去,在进行这方面实验时,往往需要把雷达置于实际环境中作大规模的实验,因此很难进行有效的研究。本文介绍的方法正好克服这一缺点,只要采用一个雷达回波模拟器,在室内产生模拟的雷达回波即可进行简单的实验。迄今为止的模拟器是用白噪声来模拟杂波的,这种杂波不一定能与实际环境的杂波相一致,因此不大适合于研究在实际环境中对应于一定杂波概率分布的恒虚警率装置。
I. INTRODUCTION When using radar to search and track ground and sea targets, the biggest problem is how to detect the target signal buried in clutter (background noise). To solve this problem, it is necessary to suppress clutter, vigorously study clutter suppression devices, such as CFAR receivers, and the development of moving target display technologies. In the past, when carrying out experiments in this area, it is often necessary to put the radar into large-scale experiments in the actual environment, so that it is very difficult to carry out effective research. The approach presented in this article is an easy way to overcome this shortcoming, as long as a radar echo simulator is used to generate simulated radar echoes indoors. The simulator so far simulates clutter with white noise, which is not necessarily coincident with the clutter of the actual environment and therefore not suitable for the study of the constant corresponding to a certain clutter probability distribution in the real environment False alarm rate device.