MIMO Radar Ambiguity Optimization using Phase Coded Pulse Waveforms

Multiple input multiple output radars transmit partially coherent or noncoherent waveforms for improving spatial resolution or spatial diversity. While waveform design for SIMO radars concentrate on improving the delay and Doppler resolution characteristics, waveform design for MIMO radars involve o...

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Bibliographic Details
Published in:International journal of computer applications 2013-01, Vol.61 (10), p.18-23
Main Authors: V.K.Sharma, G., Raja Rajeswari, K.
Format: Article
Language:English
Subjects:
Ambiguity
Delay
Doppler effect
Mathematical analysis
Mathematical models
Optimization
Radar
Waveforms
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Description
Summary:Multiple input multiple output radars transmit partially coherent or noncoherent waveforms for improving spatial resolution or spatial diversity. While waveform design for SIMO radars concentrate on improving the delay and Doppler resolution characteristics, waveform design for MIMO radars involve optimization of delay, Doppler and spatial resolution characteristics. The resolution properties of MIMO radar transmit waveforms is studied using the MIMO radar ambiguity function. MIMO radar ambiguity function of frequency hopping waveforms is recently derived. Considering the many advantages of phase coded pulse waveforms in radar applications, this paper derives the MIMO radar ambiguity function of phased coded pulse waveforms. Further, a numerical optimization algorithm based on simulated annealing is proposed for designing parameters of the phase coded pulse waveforms that minimize the peak of the ambiguity function at all mismatched values of delay, Doppler and angular dimensions.
ISSN:0975-8887
0975-8887
DOI:10.5120/9964-4615