Title :
An arc projection algorithm applied to near-field radar imaging
Author :
Xu, Yisu ; Zhu, Zhaoda
Author_Institution :
Dept. of Electron. Eng., Nanjing Aeronaut. Inst., China
Abstract :
The authors describe an arc projection algorithm applied to radar imaging in a near-field case. In a close area, the samples of echo signal are no longer pure frequency-domain data due to wavefront curvature. In such cases, it is not proper to process echo signals by utilizing traditional imaging methods. The authors propose the idea of near-field correction. Combining it with the convolution backprojection (CBP) algorithm, an arc projection algorithm is obtained. Computer simulation results obtained by processing echo signals in the near-field using the arc projection algorithm and the conventional CBP algorithm are presented and compared
Keywords :
computerised picture processing; digital simulation; radar clutter; radar theory; arc projection algorithm; convolution backprojection; digital simulation; echo signal; frequency-domain data; near-field correction; near-field radar imaging; wavefront curvature; Apertures; Convolution; Distortion; Fourier transforms; Image analysis; Image reconstruction; Projection algorithms; Radar imaging; Reflectivity; Signal processing;
Conference_Titel :
Aerospace and Electronics Conference, 1991. NAECON 1991., Proceedings of the IEEE 1991 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-0085-8
DOI :
10.1109/NAECON.1991.165735
