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一、引言近年来,越来越多的火控系统配备了激光测距机。但目前多数火控系统都采用模拟指挥仪,因而要求激光测距机给出连续模拟量的距离信息,此任务就由距离信息处理装置完成。距离信息处理装置实质上是一个目标距离采样系统。当它依激光重复频率完成目标距离测量时,实际上起着距离采样器的作用。它把目标在飞行过程中连续变化的距离信息抽样成一系列的数字距离值(数字序列);当它对数字距离信息进行插值外推处理并经数模变换为连续量距离信息时,实际上起着距离保持器的作用。它把采样序列恢复为连续信号。
I. INTRODUCTION In recent years, more and more fire control systems have been equipped with laser range finders. However, at present, most fire control systems adopt analog commanding instruments, therefore, the laser range finder is required to give the continuous analog distance information, which is completed by the distance information processing device. The distance information processing device is essentially a target distance sampling system. When it completes the target distance measurement at the laser repetition rate, it actually acts as a distance sampler. It samples the continuously varying distance information of the target during flight into a series of digital distance values (digital sequences). When it interpolates the digital distance information by interpolation and transforms digital data into continuous distance information, it actually starts With the role of distance holder. It restores the sampling sequence to a continuous signal.