Abstract
In order to solve the staring imaging problem of phased array detector, a high-resolution imaging algorithm based on random phase coding is proposed in this paper. Random phase coding is used to realize more complex wavefront of detection beam for phased array detector, and it can intercept more effective information from strong scattering points in the target area carried, the scattering factor matrix of detection target area can be restructured accurately through proposed modified sparsity adaptive matching pursuit algorithm, and adaptive monopulse response curve is used for high-resolution azimuth angle measurement during the signal processing. The proposed algorithm can lead the measured angle profile focusing, the resolution of measured angle from proposed algorithm is about 10 times beyond the actual beam scanning imaging algorithm, and the RMSE of imaging is reduced to 2 m.
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Tong, Xr. Staring high-resolution imaging algorithm based on random coded-wavefront. SIViP 15, 1115–1123 (2021). https://doi.org/10.1007/s11760-020-01838-6
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DOI: https://doi.org/10.1007/s11760-020-01838-6