New weighting method to synthesize a zero sidelobe correlation filter for burst signals

Electronics and Communications in Japan (Part I: Communications) Pub Date : 2007-10-01 DOI:10.1002/ECJA.20373

Mitsuyoshi Shinonaga, J. Suzuki, Shinichi Yajima, S. Nishimoto

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引用次数: 1

Abstract

The detection of received radar signals uses Doppler filtering as the correlation process on the received echoes for many transmitted pulses in addition to the pulse compression process which is the correlation process in the range direction. Normal radar echoes become blips widened in the azimuth direction, but the Doppler filtering process is not the optimum process from the perspective of improving the signal-to-noise ratio. Furthermore, compression of the spread in the azimuth direction of the signal is demanded in order to detect the azimuth. In this paper, we show that the azimuth beam width compression process can be implemented by filtering which satisfies the maximum SNR based on the zero sidelobe constraint condition applied to pulse compression. In addition, we theoretically explain the weighting matrix derived by this design method and use simulations to compare with the pulse compression process of the characteristics of a zero sidelobe correlation function. © 2007 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 90(10): 25– 35, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.20373

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一种针对突发信号合成零旁瓣相关滤波器的加权新方法

雷达接收信号的检测除采用脉冲压缩过程作为距离方向上的相关过程外，还采用多普勒滤波作为接收回波对多个发射脉冲的相关过程。正常雷达回波在方位角方向上成为加宽的光点，但从提高信噪比的角度来看，多普勒滤波处理并不是最优处理。此外，为了检测方位角，需要压缩信号在方位角方向上的传播。在本文中，我们证明了基于零旁瓣约束条件的脉冲压缩可以通过满足最大信噪比的滤波来实现方位角波束宽度压缩过程。此外，我们从理论上解释了该设计方法导出的加权矩阵，并通过仿真与脉冲压缩过程中零旁瓣相关函数的特性进行了比较。©2007 Wiley期刊公司电子工程学报，2009,29 (3):357 - 357;在线发表于Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002 / ecja.20373

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Electronics and Communications in Japan (Part I: Communications)

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