| 宽带强干扰中弱信号的检测 |
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| 引用本文： | 王姝,何子述. 宽带强干扰中弱信号的检测[J]. 成都信息工程学院学报, 2005, 20(3): 265-269 |
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| 作者姓名： | 王姝 何子述 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,610054 |
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| 摘 要： | 提出了一种检测宽带强干扰中弱信号的实现方法。利用FFT将宽带信号分解成为若干个窄带信号，对每一个窄带信号，先利用MVDR(最小方差无失真响应)方法进行波束形成，再通过干扰抑制系统有效地抑制弱信号附近空间不同方位的强干扰，完成指定弱信号的检测。
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| 关 键 词： | 弱信号检测 强干扰 MVDR算法 最佳空间滤波器 |
| 文章编号： | 1671-1742(2005)03-0265-05 |
| 修稿时间： | 2004-12-27 |
Detection of weak signal in wideband strong interference |
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| WANG Shu,HE Zi-shu. Detection of weak signal in wideband strong interference[J]. Journal of Chengdu University of Information Technology, 2005, 20(3): 265-269 |
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| Authors: | WANG Shu HE Zi-shu |
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| Abstract: | An implementation of the weak signal detection in the wideband strong interference is proposed. The wideband signal is decomposed in the frequency domain into multiple narrowband signals by using the fast response transform (FFT). For each narrowband signal the multiple MVDR (minimum variance distortionless response) beams are formed. Then multiple interferences coming from the neighborhood of the target direction differently are effectively suppressed and the weak signal is detected by interference suppression system. |
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| Keywords: | detection of weak signal strong interference MVDR method optimal spatial filter |
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