监视雷达数字脉冲压缩多相码的设计

N. Muralidhara, R. B., R. Biradar, Jayaramaiah G.V
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引用次数: 9

摘要

数字脉冲压缩是一种利用较长脉冲的发射功率来达到较短脉冲的距离分辨率的技术。与其他雷达波形码相比,多相码能够在不应用加权函数的情况下获得更好的旁瓣电平。更重要的是,多相波形具有主瓣宽度小、峰值旁瓣比高、多普勒容差好的优点,这是提取目标速度的重要参数。本文分析了采用多相码的数字脉冲压缩技术在雷达中的应用,总结了不同多相码在主瓣宽度、旁瓣压缩、多普勒容差等方面的比较,并分析了预压缩限带的效果。本文还讨论了多相码和波形设计准则在s波段雷达应用中的优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Designing Polyphase code for Digital Pulse Compression for surveillance Radar
Digital Pulse compression is a technique to achieve better range resolution that of corresponding short pulse by transmitted power of a reasonably long pulse. Compare to other radar waveform codes, Polyphase codes have the ability to achieve better side lobe levels without applying weighting functions. More importantly, Polyphase wave forms have the advantages of low main lobe width, high peak side lobe ratio and better Doppler tolerance, a vital parameter to extract the target's velocity. In this paper, the authors would like to analyze Digital Pulse Compression technique for radar application, using Polyphase codes and summarize the comparison between different Polyphase in terms of main lobe width, side lobe reduction, Doppler tolerance and analyze the effect of pre-compression band-limiting. The advantages of Polyphase codes and waveform design criteria for the S-band Radar application is also discussed in this paper.
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