Title :
Performance of the improved channel equalization method for Wideband Digital Array Radar
Author :
Ran, Yong ; Wang, Xuegang ; Zou, Lin
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Channel equalization algorithm must be used to achieve the idea effect of digital beamforming in wideband digital array radar. Performance of based on inverse Fourier transform method deteriorate in low signal to noise ratio (SNR) environment. An improved method is presented. This method only calibrate the error of signal in passband not the differences caused by noise outside the band. Finally, simulations are carried out with 20dB SNR and comparisons are made to demonstrate the performance improvement of improved calibration method.
Keywords :
FIR filters; Fourier transforms; adaptive filters; adaptive radar; array signal processing; calibration; equalisers; least squares approximations; radar signal processing; IFT algorithm; SNR environment; WLS algorithm; adaptive FIR filter; channel equalization algorithm; digital beamforming; error calibration method; inverse Fourier transform algorithm; signal-to-noise-ratio environment; weighted least squares algorithm; wideband digital adaptive array radar; Calibration; Computational modeling; Equalizers; Finite impulse response filter; Fourier transforms; Frequency response; Noise figure; Radar; Signal to noise ratio; Working environment noise;
Conference_Titel :
Communications, Circuits and Systems, 2009. ICCCAS 2009. International Conference on
Conference_Location :
Milpitas, CA
Print_ISBN :
978-1-4244-4886-9
Electronic_ISBN :
978-1-4244-4888-3
DOI :
10.1109/ICCCAS.2009.5250478
