扩频调制技术在多载波扩频雷达系统中的应用

The application of the spread spectrum on the multi-carrier radar system

给出了一种多载波调制技术与PN调制技术相结合的多载波扩频雷达的实现方法.多载波雷达利用多个载波的相位差测量目标位置,并利用多普勒频移测量速度,结合PN调制技术实现的多载波扩频雷达能提高对抗窄带干扰的能力,降低发射信号的峰平比以降低信号的非线性失真.仿真结果表明,该方法可以显著提高测量精度,并且实现简单.

Multi-carrier spread spectrum radar is presented. In the multi-carrier spread spectrum radar system, phase difference is used to measure the object range and the Doppler shift is used to measure the velocity of the object. Multi-carrier spread spectrum radar has the advantages of higher performance of anti-narrow band interference and lower peak average ratio. Simulation results show the effectiveness of the proposed radar system.