Open AccessInterpolation‐free method for near‐field cross MIMO array imaging
Author(s) -
Zhu Rongqiang,
Zhou Jianxiong,
Cheng Binbin,
Fu Qiang,
Jiang Ge
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.1148
Subject(s) - interpolation (computer graphics) , mimo , algorithm , compensation (psychology) , fourier transform , computational complexity theory , range (aeronautics) , inverse , computer science , mathematics , computer vision , image (mathematics) , mathematical analysis , engineering , geometry , telecommunications , channel (broadcasting) , psychology , psychoanalysis , aerospace engineering
In this Letter, an interpolation‐free imaging algorithm for a near‐field cross MIMO array is presented. This method transforms the measurement data into the wavenumber domain along the receiving direction or the transmitting direction for compensation. Then the imaging result is obtained by 1D inverse Fourier transform and 2D accumulation. This method has the same computational complexity as the backprojection algorithm (BPA) with better imaging quality since interpolation is avoided. The imaging performance of the proposed method, the BPA and the approximate range migration algorithm are compared by experiment.