Title :
Precise Measurement of RCF in Colored Gaussian Noise
Author :
Li, Shentang ; Wan, Hong ; Huang, Yuqi ; Huo, Wenjun
Author_Institution :
Inf. Eng. Univ. of PLA, Xian
Abstract :
A novel algorithm for precise measurement of RCF (radar carrier frequency) in colored Gaussian noise is proposed. The algorithm involves FFT, non-linear filtering, digital heterodyning, and decimation, phase-based frequency estimation. The algorithm has a reduced threshold relative to the existing methods and performance close to that of maximum likelihood estimation. In addition, the mean-squared error performance is within 0.3 dB of the Cramer-Rao bound (CRB) at signal-to-noise ratios (SNRs) above threshold.
Keywords :
Gaussian noise; fast Fourier transforms; radar signal processing; Cramer Rao bound; FFT; colored Gaussian noise; digital heterodyning; fast Fourier transforms; maximum likelihood estimation; mean squared error; nonlinear filtering; phase based frequency estimation; radar carrier frequency; Computational complexity; Frequency estimation; Gaussian noise; Interpolation; Maximum likelihood estimation; Noise measurement; Phase estimation; Programmable logic arrays; Signal processing; Signal to noise ratio;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.249
