Orthogonal frequency diversity waveform with range-Doppler optimization for MIMO radar

Caicai Gao; Kah Chan Teh; Aifei Liu

doi:10.1109/LSP.2014.2329944

Orthogonal frequency diversity waveform with range-Doppler optimization for MIMO radar

Caicai Gao, Kah Chan Teh, Aifei Liu

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

In this letter, we modify the transmitted signal of the discrete frequency coding waveform with linear frequency modulation (DFCW-LFM) for multiple-input multiple-output (MIMO) radar from contiguous subpulses to an inconsecutive pulse train. The range-Doppler map is obtained by performing fast Fourier transform (FFT) after the transmit beamformer to detect the moving target. The cost function of the genetic algorithm used to optimize the carrier frequency sequence is obtained by minimizing both the range-Doppler sidelobes and cross-correlation peaks. Compared with the DFCW-LFM, the proposed waveform has lower autocorrelation sidelobes and cross-correlation for the delay within the subpulse duration.

Original language	English
Article number	2329944
Pages (from-to)	1201-1205
Number of pages	5
Journal	IEEE Signal Processing Letters
Volume	21
Issue number	10
DOIs	https://doi.org/10.1109/LSP.2014.2329944
Publication status	Published - Oct 2014
Externally published	Yes

Keywords

Autocorrelation
cross-correlation
frequency diversity waveform
mimo radar
range-doppler optimization

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10.1109/LSP.2014.2329944

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title = "Orthogonal frequency diversity waveform with range-Doppler optimization for MIMO radar",

abstract = "In this letter, we modify the transmitted signal of the discrete frequency coding waveform with linear frequency modulation (DFCW-LFM) for multiple-input multiple-output (MIMO) radar from contiguous subpulses to an inconsecutive pulse train. The range-Doppler map is obtained by performing fast Fourier transform (FFT) after the transmit beamformer to detect the moving target. The cost function of the genetic algorithm used to optimize the carrier frequency sequence is obtained by minimizing both the range-Doppler sidelobes and cross-correlation peaks. Compared with the DFCW-LFM, the proposed waveform has lower autocorrelation sidelobes and cross-correlation for the delay within the subpulse duration.",

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AU - Gao, Caicai

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N2 - In this letter, we modify the transmitted signal of the discrete frequency coding waveform with linear frequency modulation (DFCW-LFM) for multiple-input multiple-output (MIMO) radar from contiguous subpulses to an inconsecutive pulse train. The range-Doppler map is obtained by performing fast Fourier transform (FFT) after the transmit beamformer to detect the moving target. The cost function of the genetic algorithm used to optimize the carrier frequency sequence is obtained by minimizing both the range-Doppler sidelobes and cross-correlation peaks. Compared with the DFCW-LFM, the proposed waveform has lower autocorrelation sidelobes and cross-correlation for the delay within the subpulse duration.

AB - In this letter, we modify the transmitted signal of the discrete frequency coding waveform with linear frequency modulation (DFCW-LFM) for multiple-input multiple-output (MIMO) radar from contiguous subpulses to an inconsecutive pulse train. The range-Doppler map is obtained by performing fast Fourier transform (FFT) after the transmit beamformer to detect the moving target. The cost function of the genetic algorithm used to optimize the carrier frequency sequence is obtained by minimizing both the range-Doppler sidelobes and cross-correlation peaks. Compared with the DFCW-LFM, the proposed waveform has lower autocorrelation sidelobes and cross-correlation for the delay within the subpulse duration.

KW - Autocorrelation

KW - cross-correlation

KW - frequency diversity waveform

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KW - range-doppler optimization

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Orthogonal frequency diversity waveform with range-Doppler optimization for MIMO radar

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Keywords

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