基于DDS的高频雷达应答器的设计

Design of High Frequency Radar Responder Based on DDS

摘要:

为了对高频雷达接收机进行通道校准和解决雷达接收机通道校准中相位校准的难题,也为了进一步检验雷达系统设备的可靠性与算法的准确性和解决模拟目标运动速度的难题,分析了现有高频雷达应答器的问题,提出了基于DDS的高频雷达应答器,并进行了现场实验,结果表明基于DDS的高频雷达应答器能够有效地实现通道校准,得出了基于DDS的高频雷达应答器能够很好地解决接收机通道的相位校准和模拟目标运动速度的难题；基于DDS的高频雷达应答器采用全数字处理与控制模式,体积小,易便携,很好地实现了接收机通道校准和雷达系统设备与算法的检验,是高频雷达系统的关键部件之一。

Abstract:

In order to carry out the channel calibration of high frequency radar receiver and solve the the problem of phase calibration of receiver channel calibration, and also to test the reliability of radar equipment and the accuracy of the algorithm further and solve the problem of simulation of target velocity, analyzing the existing problems of the high frequency radar responder, putting forward the High Frequency Radar Responder based on DDS, and having carried on the experiment on the spot, the result shows that the High Frequency Radar Responder based on DDS can achieve the channel calibration effectively, it is concluded that the High Frequency Radar Responder based on DDS can solve the problem of phase calibration of receiver channel and the simulation of target velocity perfectly. The High Frequency Radar Responder based on DDS uses the digital processing and controlling mode, having small volume, being easily portable, and realizing the channel calibration of radar receiver and the test of radar system and algorithm, being one of the key components of HF radar.