A Better Way of Life for PPS Users ... GPS SAASM and P(Y)-Direct, the New Wave of Military Receiver Technology for the PPS Navigation and Time and Frequency User

Abstract

This paper discusses the new GPS receiver technology being introduced to all U.S. Military Services and U.S. allies, now using standard PPS receivers. The new receivers implement two very distinct, yet highly synergistic characteristics: the ability to acquire the P(Y) code direct, without the use of the C/A-code signal, and the new security architecture called SAASM (Selective Availability Anti-Spoof Module). In this paper, the focus is on the Direct P(Y) for the crypto-keyed receiver and the precision time and frequency applications that can take advantage of this new capability. Also included in the discussion is the future of the Selective Availability (SA) signal degradation and the overall scenarios of civil and military GPS signal availability.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1999
Accession Number
ADA497127

Entities

People

  • Hugo Fruehauf

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Artificial Satellites
  • Availability
  • Carrier Frequencies
  • Civil Aviation
  • Clocks
  • Communication Systems
  • Correlators
  • Degradation
  • Doppler Effect
  • Dwell Time
  • Energy Consumption
  • Frequency
  • Navigation
  • Standards
  • Time Intervals

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Strategic Security Studies

Technology Areas

  • Space