Title :
Multiple target recognition by eigenvalue estimation
Author :
Shouyong, Wang ; Jing, Jiang ; Lan, Yu ; Zhaoming, Yang ; Delin, Zuo ; Changwen, Tang
Author_Institution :
Key Lab., Air Force Radar Acad., Wu Han, China
Abstract :
A new method of radar target recognition is presented. Aircraft number for a radar target is recognized by IF radar echoes. For a received IF echo signal, the complex envelope of the signal is obtained by the FFT and spectrum shift, and its autocorrelation matrix is computed. The feature vector is the eigenvalue of the autocorrelation matrix. Also, using a method based on subspace division, precise reference templates are built
Keywords :
aircraft; correlation methods; eigenvalues and eigenfunctions; fast Fourier transforms; parameter estimation; radar signal processing; radar target recognition; radar theory; spectral analysis; FFT; IF radar echoes; aircraft number; autocorrelation matrix; complex signal envelope; eigenvalue estimation; feature vector; multiple target recognition; radar target recognition; reference templates; spectrum shift; subspace division; Airborne radar; Aircraft manufacture; Autocorrelation; Eigenvalues and eigenfunctions; Frequency; Laboratories; Military aircraft; Narrowband; Radar antennas; Target recognition;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770918
