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Journal of the Korea Institute of Military Science and Technology 2010;13(4):673-682.
A Study on Radar Waveform - Polyphase Sequence
Jin-Mo Yang, Whan-Woo Kim
1
2Chungnam National University
레이더 파형 연구 - 다위상 시퀀스
양진모, 김환우
1국방과학연구소
2충남대학교
Abstract
This paper describes and analyzes a various generation methods of the mutually orthogonal polyphase sequences with low cross-correlation peak sidelobe and low autocorrelation peak sidelobe levels. The mutual orthogonality is the key requirement of multi-static or MIMO(Multi-Input Multi-Output) radar systems which provides the good target detection and tracking performance. The polyphase sequences, which are generated by SA(Simulated Annealing) and GA(Genetic Algorithm), have been analyzed with ACF(Autocorrelation Function) PSL(Peak Sidelobe Level) and CCF(Crosscorrelation Function) level at the matched filter output. Also, the ambiguity function has been introduced and simulated for comparing Doppler properties of each sequence. We have suggested the phase selection rule for applying multi-static or MIMO systems.
Key Words: Multi-Input Multi-Output, Polyphase, Mutual Orthogonality, Autocorrelation Function, Cross-correlation Function, Doppler Frequency, Peak Sidelobe Level
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