Title :
Application of adaptive kernel time-frequency distribution in ISAR imaging with complex motion target
Author :
Yupeng Zhu ; Hongqiang Wang ; Xiao Shunping
Author_Institution :
Res. Inst. of Space Electron., Nat. Univ. of Defense Technol., Changsha
Abstract :
The ISAR image will be blurred using the traditional range-Doppler algorithm for imaging maneuvering targets. Time frequency analysis is an effective method for solving this problem. On the basis of analyzing the radar echopsilas Doppler frequency time-varying characteristic with complex maneuvering in detail, a new adaptive kernel time frequency distribution (AKTFD) which is suitable for complex maneuvering targetpsilas ISAR imaging is introduced. The new algorithm for estimation the kernel functionpsilas parameters is also proposed in this paper. Simulation result based on simulated data and real data shows the validity of proposed algorithm.
Keywords :
Doppler radar; Fourier transforms; image motion analysis; radar cross-sections; radar imaging; statistical distributions; synthetic aperture radar; time-frequency analysis; Fourier transform; ISAR imaging; adaptive kernel time-frequency distribution application; complex motion target; inverse synthetic aperture radar; radar echo Doppler frequency time-varying characteristic; statistical distribution; time frequency analysis; traditional range-Doppler algorithm; Doppler radar; Fourier transforms; Geometry; Image analysis; Kernel; Radar imaging; Radar scattering; Signal resolution; Space technology; Time frequency analysis;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697637
