Ground Moving Target Indicator Based on Generalized Likelihood Ratio Test (GLRT) in Single Channel SAR using Signal Space Mapping Method

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OSTOVAN M.; SAMADI S.; HELFROUSH M.S.

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Journal: JOURNAL OF RADAR Year:2019 | Volume:7 | Issue:1 (SERIAL No. 21) Page(s): 79-91

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Information Journal Paper

Title

Ground Moving Target Indicator Based on Generalized Likelihood Ratio Test (GLRT) in Single Channel SAR using Signal Space Mapping Method

Author(s)

OSTOVAN M. | SAMADI S. | HELFROUSH M.S. | Issue Writer Certificate

Keywords

Synthetic Aperture Radar (SAR)Q1

Generalized Likelihood Ratio Test (GLRT)Q1

Ground Moving Target IndicationQ1

Grid SearchQ1

Signal Space MappingQ1

Abstract

In this paper, the goal is theoreticaly investigating and presenting a ground moving target detector in single channel SAR based on detection theory methods. Accordingly, the detector structure for ground moving targets has been developed based on generalized likelihood ratio test (GLRT) from raw received signal. For this purpose, unknown parameters of the ground moving target’ s returned signal, including azimuth location and velocity in both azimuth and range directions are replaced with their ML estimations. Then, generalized likelihood ratio test is performed which leads to estimator-correlator detection structure. Estimation of the unknown parameters of the target reflectivity which is necessary for the proposed detector, needs optimization of an objective function through a Grid Search in multidimensional space of the unknown reflectivity parameters. To reduce the computational load of this massive multidimensional Grid Search, conversion of the multidimensional received signal space to equivalent several 1D spaces is used. Effectiveness of the proposed method is demonstrated through experimental results by evaluation of detection performance curves.

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APA: Copy

OSTOVAN, M., SAMADI, S., & HELFROUSH, M.S.. (2019). Ground Moving Target Indicator Based on Generalized Likelihood Ratio Test (GLRT) in Single Channel SAR using Signal Space Mapping Method. JOURNAL OF RADAR, 7(1 (SERIAL No. 21)), 79-91. SID. https://sid.ir/paper/389674/en

Vancouver: Copy

OSTOVAN M., SAMADI S., HELFROUSH M.S.. Ground Moving Target Indicator Based on Generalized Likelihood Ratio Test (GLRT) in Single Channel SAR using Signal Space Mapping Method. JOURNAL OF RADAR[Internet]. 2019;7(1 (SERIAL No. 21)):79-91. Available from: https://sid.ir/paper/389674/en

IEEE: Copy

M. OSTOVAN, S. SAMADI, and M.S. HELFROUSH, “Ground Moving Target Indicator Based on Generalized Likelihood Ratio Test (GLRT) in Single Channel SAR using Signal Space Mapping Method,” JOURNAL OF RADAR, vol. 7, no. 1 (SERIAL No. 21), pp. 79–91, 2019, [Online]. Available: https://sid.ir/paper/389674/en

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