Accession Number:

ADA426847

Title:

Developing Signal Processing Algorithms for Weak GPS Signal Acquisition in Urban Environment

Descriptive Note:

Final rept. 1 Apr 2003-31 May 2004

Corporate Author:

MIAMI UNIV OXFORD OH

Personal Author(s):

Report Date:

2004-09-18

Pagination or Media Count:

33.0

Abstract:

This report describes project progress on developing signal processing algorithms for weak GPS signal acquisition in typical urban environment where no more than three satellites are in direct view of a receiver. To successfully determine a user position, signals that are weakened due to presence of man-made andor natural structures needs to be acquired. This can be a challenge task since the nominal level satellite signals act as interference during the weak signal acquisition. This report documents the progress we have made in accessing and mitigate the interference among satellite signals. The receiver platform with which we tested our algorithms is a software GPS receiver developed at AFRLSNRP at WPAFB. As part of the proposed project, we worked on interfacing a portable GPS RF front end with a laptop PC via existing high speed USB2. This report also documents the successful implementation of software driver functions for the USB interface and other related projects.

Subject Categories:

  • Numerical Mathematics
  • Computer Programming and Software
  • Navigation and Guidance
  • Miscellaneous Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE