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Low sidelobe patterns from thinned arrays using multiplicative processing

 

作者: D.E.N.Davies,   C.R.Ward,  

 

期刊: IEE Proceedings F (Communications, Radar and Signal Processing)  (IET Available online 1980)
卷期: Volume 127, issue 1  

页码: 9-15

 

年代: 1980

 

DOI:10.1049/ip-f-1.1980.0002

 

出版商: IEE

 

数据来源: IET

 

摘要:

The paper describes a new technique for achieving low-sidelobe directional patterns (−35 dB) from thinned arrays. The concept employs multiplicative processing and is therefore restricted to receiving arrays. It is shown that a total of about 3Nelements can synthesise a pattern corresponding to a filled array ofN2elements so that large thinning factors, in excess of 90%, are realisable for large numbers of elements and without degradation of sidelobe performance. The basic concept is also demonstrated experimentally with a 6-element array. It is shown that this design is more susceptible to the effects of random phase errors compared with conventional arrays and the multiplicative signal processing can also lead to problems of multiple-source cross products under certain situations.

 

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