基于快速余差查表法的脉冲多普勒雷达解距离模糊算法

Algorithms of range ambiguity resolution for pulse Doppler radar based on high speed residues' difference look-up table

解距离模糊是中频脉冲重复频率的脉冲多普勒雷达关键技术之一。提出了采用快速余差查表法有效解决PD雷达距离模糊问题的算法。该算法的运算量较少,实时处理能力强。以3重CPI进行仿真实验,表明该算法能够保证低虚警概率和较高的解模糊的正确性,并能够满足PD雷达信号处理的实时处理要求。

Ambiguity resolution in range is one of the key technologies in medium-PRF PD radar. In this paper, a high speed residues＇ differ- ence look-up table algorithm is introduced to solve the range ambiguity problem of PD radar. The algorithm has low computation cost and high real-time processing ability. Three-CPI simulation experimental results show that the algorithm has advantages of low false probability and high accuracy in ambiguity resolution, and also can satisfy the demand of PD radar real-time signal processing.