Open AccessA Novel Through‐the‐Wall Imaging Algorithm Combined with Phase Shift Migration and NUFFT
Author(s) -
Zhang Peng,
Fei Peng,
Wen Xin,
Nian Feng
Publication year - 2017
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2017.08.002
Subject(s) - interpolation (computer graphics) , algorithm , compensation (psychology) , fast fourier transform , phase (matter) , computer science , fourier transform , computer vision , phase correlation , image (mathematics) , artificial intelligence , fourier analysis , mathematics , short time fourier transform , physics , quantum mechanics , psychology , mathematical analysis , psychoanalysis
This paper proposes a novel Through wall imaging (TWI) algorithm combined with phase compensation and Nonuniform fast Fourier transform (NUFFT). The wall effect is cancelled with phase compensation, which is implemented by multiplying the conjugated wall transmissivity with the received echoes. The NUFFT technique is implemented to calculate the imaging results. The proposed method has two merits: The phase compensation avoids a time‐consuming calculation of the incidences angles; the image is reconstructed more accurately and efficiently than the conventional Interpolation‐fast Fourier transform (IPFFT) method. The new method is implemented on 2D synthetic‐generated data and experimental data. The results demonstrate that our method generates high quality focused images and achieves target geometrical identification within a very short time.