基于高分辨距离间隔像的频率步进单脉冲雷达测角技术研究

 频率步进雷达合成高分辨距离像时对速度补偿的精度要求很高,而采用高分辨距离间隔像处理则可以大大降低这种要求。首先分析了高分辨距离间隔像成像的一些问题;然后阐述了基于高分辨距离间隔像的单脉冲雷达测角机理,并且提出了3 种过采样条件下的单脉冲雷达距离间隔像测角算法,进行了计算机仿真,结果表明距离间隔像交叉项选大测角方法性能优于其它两种方法。

Research on Stepped-Frequency Monopulse Radar Angle Measuring Technology Based on High Resolution Range Separation Profile

When synthesizing high resolution range profile for stepped-frequency radar, the desire for target velocity compensation accuracy is very rigorous. The high resolution range separation profile can be used to avoid this drawback. In this paper, firstly, some questions on the high resolution range separation profile are analysed detailedly. Secondly, the mechanisms of angle measuring method based on high resolution separation profile is set forth. Then three angle measuring algorithm based on high resolution range separation profile under over-sampling conditions are developed and simulated. Computer simulation proves that the SLCE(select largest of cross entry) angle measuring method based on high resolution range separation profile is prior to the other two methods.