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一、引言当计算机用于武备和指挥系统时,需要接收来自雷达的信号。由于目前使用的大多数雷达均以模拟量形式输出高低角、方位角、距离等数据,这就需要在计算机——雷达之间设置一个模-数转换装置,把模拟量转换成二进制编码。这样,带来了转换装置的转换误差和转换速度等问题。本文提出数字测距系统是设法把雷达距离跟踪系统数字化,节省了转换装置,消除了一个附加的误差来源。同时,数字测距系统与原来雷达中采用的机电式或电子模拟式距离跟踪系统相比有其显著的优点: 1.机电系统的机械惯量限制了距离跟踪系统的带宽,而数字测距系统基本上没有机械
I. INTRODUCTION When computers are used in weapons and command systems, they need to receive signals from the radar. Since most of the currently used radars output data such as elevation angle, azimuth, and distance in analog form, it is necessary to provide an analog-digital conversion device between the computer and the radar to convert the analog quantity into a binary code. In this way, problems such as conversion error and conversion speed of the conversion device are caused. This paper proposes that the digital ranging system seeks to digitize the radar distance tracking system, saving the switching device and eliminating an additional source of error. At the same time, the digital ranging system has significant advantages over the electromechanical or electronic analog distance tracking system used in the original radar: 1. The mechanical inertia of the mechatronic system limits the bandwidth of the distance tracking system, while the basic digital ranging system There is no mechanical