前言测距是雷达的根本任务之一,所以测距精度是雷达的重要指标。产生测距误差的原因很多,本文所讨论的只是连续波雷达音码测距系统设备引入的距离误差(在有些文献中〔1〕把它定义为距离分辨率)和由热噪声引入的距离随机误差。测距精度分析的目的在于:通过分析搞清楚产生测距误差的原因,较为准确地向各 Ranging is one of the fundamental tasks of radar, so ranging accuracy is an important indicator of radar. There are many reasons for the ranging error. What is discussed in this paper is only the distance error introduced by the continuous wave radar code-length system (in some literatures, it is defined as distance resolution) and the distance introduced by thermal noise is random error. Ranging accuracy analysis purposes are: Through analysis to find out the cause of ranging error, more accurately to each