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| SIDELOBE SUPPRESSION AND DOPPLER-TOLERANCE IMPROVEMENT OF BIPHASE CODED SIGNAL |
| Liu Qiang; Xiang Jingcheng; Gu Deren |
| University of Electronic Science and Technology of China Chengdu 610054 |
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Abstract The issue of range sidelobe suppression filters for biphase coded signals is investigated. By analysing the characteristic in frequency domam, a design method for minimized peak sidelobe filters, which is suited for various code length is suggested. The computer simulation of sidelobe suppression is made based on 190-bit biphase coded signals. This paper presents a method to improve the Doppler-tolerance by combining the frequency diversity and non-coherent sidelobe reduction filters. The simulation results show that the peak sidelobe reduction filters meet the requirements
of modern radar systems.
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Received: 09 February 1992
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1993, Vol. 15 
