Accession Number:

ADA458023

Title:

Comparison of Narrowband Adaptive Filter Technologies for GPS

Descriptive Note:

Technical rept.

Corporate Author:

MITRE CORP BEDFORD MA

Personal Author(s):

Report Date:

2000-03-01

Pagination or Media Count:

27.0

Abstract:

Narrowband interference can seriously degrade the performance of GPS systems. Several techniques exist for reducing this interference, including adaptive transversal filters, overlapped FFTs, and filter banks. All these techniques attempt to filter out the interference before the GPS receiver performs correlation. This paper compares these three interference suppression techniques for application to GPS. Likely VLSI-based designs with various levels of complexity i.e., operation counts for each technique are proposed and described. The effects of these designs as pre-processors on GPS ranging performance is then compared using computer simulation.

Subject Categories:

  • Computer Programming and Software
  • Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE