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

fYear

2009

fDate

23-25 July 2009

Firstpage

443

Lastpage

445

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCCAS.2009.5250478

Filename

5250478