GPS L1 C/A Signal Acquisition Analysis

Abstract

This report presents a performance analysis of a representative technique for GPS L1 C/A signal acquisition. The purpose of this report is to analyze the signal acquisition technique for L1 C/A legacy aviation GPS receivers to determine C/N0 values where acquisition can occur while satisfying given acquisition scenario constraints. The representative signal acquisition technique is analyzed since receiver manufacturers build to a performance specification and not to a specific acquisition algorithm. The results are based on an acquisition scenario where a position fix must occur within five minuets. Additional conditions for the acquisition are discussed in the report. Results show that acquisition can occur at 28.7 dB-Hz C/N0 at the input to the correlators or 31.7 dB-Hz at the output of the antenna when 1 dB Doppler and code offset losses and 2 dB other implementation losses are included.

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Document Details

Document Type
Technical Report
Publication Date
Sep 21, 2006
Accession Number
AD1107040

Entities

People

  • Don Benson

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Acquisition
  • Artificial Satellites
  • Bandwidth
  • Carrier Frequencies
  • Computer Programs
  • Correlators
  • Cross Correlation
  • Detection
  • Dwell Time
  • Elevation
  • Equations
  • False Alarms
  • Filtration
  • Frequency
  • Frequency Bands
  • Global Positioning Systems
  • Hot Spots
  • Navigation
  • Oscillators
  • Power Levels
  • Probability
  • Probability Distributions
  • Radio Frequency
  • Random Variables

Readers

  • Civilian Systems Systems Program Capability Development and Upgrade Support Activity Expense and Pay Management.
  • Computational Modeling and Simulation
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space