Title :
Fourth-Order Ambiguity Function Based on the Fractional Fourier Transform
Author :
Shan, Tao ; Tao, Shan ; Sun, Rongrong
Abstract :
Second-order cross ambiguity function based on the fractional Fourier transform (CAF-FRFT-SOS) can be used in joint estimation of time delay, Doppler shift and Doppler rate of the echoes, but it can not restrain the correlated Gaussian noise. This paper presents the fourth-order ambiguity function based on the fractional Fourier transform (FRFT). It can be utilized to overcome the deficiency of CAF-FRFT-SOS and be used in the unknown correlated Gaussian noise environment. The simulations prove the efficiency of this algorithm
Keywords :
Acceleration; Delay effects; Delay estimation; Doppler radar; Doppler shift; Fourier transforms; Gaussian noise; Parameter estimation; Radio access networks; Signal processing; Doppler rate; Doppler shift; Time Delay;
Conference_Titel :
Image and Signal Processing, 2008. CISP '08. Congress on
Conference_Location :
Sanya, China
Print_ISBN :
978-0-7695-3119-9
DOI :
10.1109/CISP.2008.512
