A new beam forming method study on wideband LFM signal

被引：0
|
作者：
Wang F. [1 ]
Luo J.-Q. [2 ]
Wang J.-G. [2 ]
Wu S.-L. [2 ]
机构：
[1] 63961 Division
[2] Electronic Engineering Institute
来源：
Yuhang Xuebao/Journal of Astronautics | 2011年 / 32卷 / 12期
关键词：
Beam forming; Dechirp processing; Delay and product; Linear frequency modulation;
D O I：
10.3873/j.issn.1000-1328.2011.12.020
中图分类号：
学科分类号：
摘要：
In order to improve properties of direction finding, location and imaging for electronic countermeasure passive detection system, a wideband beam forming method based on temporal delay and product dechirp processing is proposed for wideband linear frequency modulation (LFM) signal. In this new method, wideband LFM signal data of array receiver are transformed into narrow band phase delay mode, by ingeniously utilizing the frequency modulation characteristic of the LFM signal and through temporal domain delay and product preprocessing. Finally, the LFM signal's beams are formed by using the narrow band processing data. As this new method is only suitable for LFM signal, and it has high pertinence, further more, it vastly decreases the system complexity. From the computer simulation experiment analysis, it is known that, this method not only has higher viability than traditional methods, but also has a high system property for breaking through the constraint of the array pitch. So, this method has a high application prospect in direction finding and imaging domains.
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页码：2601 / 2606
页数：5
相关论文
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