分数阶包络补偿在稀布阵雷达中的应用

根据稀布阵综合脉冲孔径雷达信号处理流程,将分数阶包络补偿应用到长时间相干积累处理中。对信号处理流程进行了优化,使之适合分数阶包络补偿的要求,将包络补偿过程成功地嵌入到综合脉冲孔径处理之中,实现了工程化的实时处理。根据实测信号,对算法的正确性进行了验证。最后与未采用补偿的综合结果进行了比较。试验表明:采用分数阶补偿的效果得到很好的改善,改善值可达1.5dB以上。该算法已成功实现了工程化,并在某型雷达中得到了应用,同时还可用于其他采用长时间相参积累处理的雷达中。

Application of Fractional Order Motion Compensation in Synthetic Impulse and Aperture Radar

According to the signal processing procedure of synthetic impulse and aperture radar, the paper implements the fractional order motion compensation. Signal processing procedure is optimized to adapt the compensation algorithm. The compensation function is embedded into the synthetic process successfully. So, it is convenient to realize the compensation for synthetic process in real time mode. The algorithm is verified via real signal data. Results show that the algorithm improves the signal to noise ratio by more than 1.5 dB. The algorithm has been applied to a radar, achieving excellent performance. It can also play an important role in other long time coherent accumulation procedures of radars.