Title :
Accurate Measurement of Radar Carrier Frequency
Author :
Li, Shentang ; Wan, Hong ; Wang, Zhigang
Author_Institution :
Inf. Eng. Univ. of PLA, Zhengzhou
Abstract :
An improved estimator (CFI-Kay) for radar carrier frequency is proposed The estimator is a combination of autocorrelation, FFT and interpolation, digital heterodyne, decimation, linear prediction.´The estimator has a significantly reduced threshold relative to the existing methods and mean- squared error (MSE) close to that of maximum likelihood estimation (MLE). In addition, the MSE is within 0.2 dB of the Cramer-Rao bound (CRB) at signal-to-noise ratios (SNRs) above threshold The performance of CFI-Kay algorithm is uniform across a frequency range of -pi to pi. Moreover, the increased computational complexity of the new estimator is acceptable.
Keywords :
computational complexity; frequency estimation; mean square error methods; radar theory; MLE; MSE; computational complexity; maximum likelihood estimation; mean-squared error; radar carrier frequency measurement; Amplitude estimation; Computational complexity; Frequency estimation; Frequency measurement; Interpolation; Maximum likelihood estimation; Phase estimation; Pollution measurement; Radar measurements; Signal to noise ratio;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381513
