Please login using the form on menu list.|
It is required to login for Full-Text PDF.
Time Delay Estimator Based on Frequency Estimation Approach
Kenneth Wing Kin LUI
Hing Cheung SO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E93-A No.6 pp.1248-1250
Publication Date: 2010/06/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
time delay estimation,
Full Text: PDF(108KB)
In this Letter, the problem of estimating the time-difference-of-arrival between signals received at two spatially separated sensors is addressed. By taking discrete Fourier transform of the sensor outputs, time delay estimation corresponds to finding the frequency of a noisy sinusoid with time-varying amplitude. The generalized weighted linear predictor is utilized to estimate the time delay and it is shown that its estimation accuracy attains Cramér-Rao lower bound.