本文讨论现代雷达中一种具有战术意义的信号——扩展频谱信号(简称扩谱信号),亦即特大时宽、带宽积并且形式多变的脈冲压缩信号。在简单介绍其原理与特征之后,主要讨论该信号的抗积极干扰潛力,最后列举堪称该信号雏形的实例说明其相关接收方法。扩谱信号大大发展了脈冲压缩信号的特点,而其真正实现则依靠采用数字电子技术的崭新分支——频带极宽的,信息率高达每秒千兆比特的电子技术。扩谱信号的产生与处理同计算机相结合可实现同雷达目标环境匹配的自适应接收。 This article discusses one of the tactical significance of modern radar - the spread spectrum signal (referred to as spread spectrum signal), which is extremely large, bandwidth product and the form of pulse compression signal. After a brief introduction of its principles and features, this article mainly discusses the anti-jamming potential of the signal. Finally, an example of the signal prototype is illustrated to illustrate the related receiving method. Spread spectrum signals have greatly expanded the characteristics of pulse compression signals, and their true reliance has been on new branches using digital electronics - electronic technology with a very wide frequency band and gigabit data rates. Spread spectrum signal generation and processing combined with the computer can be achieved with the radar target environment adaptive reception.