Title :
Doppler Shift Mitigating Algorithm for Quadrature Phase Delay Estimator
Author :
Li, Jiong ; Wang, Yanfei
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing, China
Abstract :
A method is proposed to estimate the phase delays of the sinusoid components in a noisy multifrequency signal using quadrature phase delay estimator (QDE). Linear regression is applied to mitigate the bias caused by the Doppler shift between the input and the reference signal. The variance formula of the estimator is derived. Simulation results showing the effectiveness of the algorithm are presented.
Keywords :
Doppler shift; delay estimation; radar signal processing; regression analysis; Doppler shift mitigating algorithm; MFCW radar; linear regression; multifrequency continuous-wave radar; noisy multifrequency signal; quadrature phase delay estimator; sinusoid components; Doppler shift; linear regression; multifrequency signal; phase estimation; quadrature detection;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2009.2016291
