弹载视频侦察信号调制

Signal Modulation of Projectile-borne Video Reconnaissance System

针对弹载视频侦察系统信号传输技术,设计了一种基于 MSK 调制的视频侦察信号发射与接收系统,探讨了调制单元与数字信号处理器件之间的接口设计及通过射频系统实现远距离信号传输的方法。系统集成原理样机炮射试验结果表明,与模拟通信调制相比,采用 MSK 调制方法显著提高了系统信号传输距离、抗干扰能力及可加密性,而且图像清晰,可有效识别道路、山丘、坑洞、树木及河流等战术目标,为视频侦察系统武器化应用及自主研制奠定了重要技术基础。

Aiming at the signal transmission of the projectile-borne video reconnaissance system,the MSK(minimum shift keying)modulation based the projectile-borne video signal emission system and the ground receiver are designed. The design of interface between modulation cell and DSP(digital signal processing)device,and the method of the radio communication based long-range signal transmission are presented.The mortar launched test results show that the transmission range,anti-interference and secret capabilities of...