Work

Analysis of discrete implementation of generalized cross correlator

Year: 1981

Type: article

Abstract: A common discrete implementation of the cross correlator uses a parabolic fit to the peak when the delay is not an integral multiple of the sampling period. This correspondence analyzes and assesses the pitfalls of this approach. It is shown that this yields a biased estimate of the time delay, with both the bias and variance of the estimate dependent on the location of the delay between samples, SNR, signal and noise bandwidths, and the prefilter or window used in the generalized correlator.

Source: IEEE Transactions on Acoustics Speech and Signal Processing

DOI: 10.1109/tassp.1981.1163623

Authors: R. Boucher, J. Hassab

Language: English

Topic: Speech and Audio Processing

Subfield: Signal Processing

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2169054076

FWCI: 4.049

Cites: 3

Cited by: 111

Related to: 10