基于DSP的激光脉冲编码信号测频装置的设计

Design of measurement device for laser homing signal frequency based on DSP

由于激光制导信号采用脉冲编码的方式,所以在测频的过程中需要进行复杂的处理计算,为保证在较短时间内准确地完成测频,设计了一种专用于激光制导信号测频的脉冲测频装置。介绍了该装置的测频原理,阐述了该装置的硬件组成、系统工作原理及软件实现,分析了影响该装置测量精度的一些系统因素。

Because of laser homing signal adopting different pulse coding mode, a lot of calculation for dealing with the result of mea surement is carried through in the course of measuring frequency. In order to ensure completing exactly measurement of frequency in more short time, the measurement device for laser homing signal frequency is designed. Design consideration and working principle o the device are described, and hardware structure and software implementation of the device are illustrated, and systemic factors which affect the measurement precision of the device are analyzed.