Research on the Method of Spatial Azimuth Spectrum Retrieval of Wide-Band Signals

SONG Zhi-jie

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Research on the Method of Spatial Azimuth Spectrum Retrieval of Wide-Band Signals

更新时间：2025-07-16

- Research on the Method of Spatial Azimuth Spectrum Retrieval of Wide-Band Signals
- Acta Electronica Sinica Vol. 33, Issue 7, Pages: 1227-1229(2005)
- 作者机构：
  
  1. 中国海洋大学信息科学与工程学院,山东,青岛,266071
  2. 中国海洋大学信息科学与工程学院山东青岛,266071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN95
- Published：2005
- 稿件说明：
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SONG Zhi-jie. Research on the Method of Spatial Azimuth Spectrum Retrieval of Wide-Band Signals[J]. Acta Electronica Sinica, 2005, 33(7): 1227-1229.
DOI：

SONG Zhi-jie. Research on the Method of Spatial Azimuth Spectrum Retrieval of Wide-Band Signals[J]. Acta Electronica Sinica, 2005, 33(7): 1227-1229. DOI：

摘要

本文利用栅瓣随频率漂移的特性和峰值分布的统计特性

构造了一种栅瓣滤波器.利用该栅瓣滤波器对宽频带波束输出滤波可以滤除栅瓣的影响.等间隔线阵的实验数据处理结果表明

在阵元间距是波长0.8~1.3倍相应的频段范围内

得到了较好的滤波效果.

Abstract

A type of grating lobe filter is designed based on the azimuth shift character of grating lobe as the change of frequency and statistical character of peak in time-frequency domain.Filtering to traditional wide-band beam output can suppress the effects of grating lobe on arrays validly using this filter.The better experimental results are obtained in the bandwidth corresponding to d/λ=0.8~1.3 on a equally sparse line array.

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