大多普勒容限巴克码脉压

 本文介绍用补偿式非相干型旁瓣抑制滤波器(SSF)实现13位巴克码脉冲压缩旁瓣抑制的理论计算及实验结果。补偿式非相干型SSF采用最小二乘近似逆滤波方法设计,若子脉冲宽度为0.7μs,峰值旁瓣电平不超过-30dB,这种SSF的多普勒容限能达到-40kHz～+40kHz。理论计算及实验结果都表明,所设计的补偿式非相干型SSF的多普勒容限比具有同样长度冲激响应序列的R-G-ISSF有显著改善。

BARKER CODE PULSE COMPRESSION WITH A LARGE DOPPLER TOLERENCE

This paper discusses the application of Least Square approximate inverse filtering techniques to Radar range sidelobe suppression. The method is illustrated by application to the design of a compensated non-coherent sidelobe suppression filter (SSF). The compensated non-coherent SSF of the 13-element Barker, code has been found. The -40 kHz to 40 kHz Doppler tolerence of the filter, under the conditions that the subpulse duration is equal to 0.7us and the peak sidelobe level is less than -30 dB, is obtained. Theoretical computations and experimental results indicate that the SSF we have implemented has much wider Doppler tolerence than Fihaczek-Golden-I SSF.