Multipath Mitigation Technique Based on Partial Autocorrelation Function

Authors:
Z. Zhang;C. L. Law;E. Gunawan
Affiliations:
PWTC, Research Techno Plaza, Level 4, School of EEE, Nanyang Technological University, Singapore, Singapore 637553;PWTC, Research Techno Plaza, Level 4, School of EEE, Nanyang Technological University, Singapore, Singapore 637553;PWTC, Research Techno Plaza, Level 4, School of EEE, Nanyang Technological University, Singapore, Singapore 637553
Venue:
Wireless Personal Communications: An International Journal
Year:
2007

Citing 0
Cited 1

GPS/Galileo Multipath Mitigation Using the First Side Peak of Double Delta Correlator

Wireless Personal Communications: An International Journal

Quantified Score

Hi-index	0.00

Visualization

Abstract

GPS positioning accuracy in indoor and urban canyons environments is greatly affected by multipaths due to distortions in its autocorrelation function. In this paper, the first sidelobe of Pseudorandom Noise (PN) code autocorrelation is studied and a new multipath mitigation technique based on PN code autocorrelation function is presented. This new technique relies on the detection of the partial autocorrelation function that is affected by multipath signals. The increase in fractional delay of the line-of-sight (LOS) signal is calculated. Simulation results indicate that the proposed technique has superior performance compared with the 0.1-chip-spacing narrow correlator on mitigating multipath signals, especially the short-delay multipath signals.