ION STD 101

Table Of Contents

ION STD 101 - Revision C

Section Title Page

  1. Introduction and Scope of Document 4
  2. Definition of Terms 6
  3. Initialized Time to First Fix 12
  4. Warm Start Time to First Fix 16
  5. Reacquisition Time 20
  6. Static Navigation Accuracy 23
  7. Dynamic Navigation Accuracy 26
  8. Radio Frequency Interference 30

ION STD 101 - Revision C

Revision History

Original Release: 5 July 1995

Revision A: 5 October 1995

  1. Sec 2.2.2. Added word "fixed" to output altitude.
  2. Sec 2.4. Added sentence recommending recording of DGPS data.
  3. Added sec 2.5: Receiver Mask Angle.
  4. Sec 3.2, 4.2, and 5.2. Added clarification to confidence interval defn and added word "mean" to defn of test result.
  5. Sec 3.4, 4, 4.6, 5.4, and 5.6. Added defn of invalid test. Expanded test result spec to account for sample size an invalid test cases.
  6. Sec 5.4 and 5.6. Deleted defn of available SV's and modified defn of blocked SV's. Deleted Avail SV column from test results spec.
  7. Sec 6.3 and 7.3. Clarified definition of required instrumentation accuracy.
  8. Sec 7.3. Clarification of wording on live signal testing.

Revision B: 3 February 1996

  1. Sec 1.2. Deleted last sentence of last paragraph.
  2. Sec 2.3.1.2. Changed "Coverage" to "Service Availability."
  3. Sec 5. Modified section (REAQ test) to require blockage of all visible satellites.
  4. Sec 5.6. Changed example test result table to include 50 samples.
  5. Sec 8.4. Changed "a" to "as."

Revision C: 21 January 1997

  1. Added section 2.6 defining parameters that can be set by tester.
  2. Deleted user class appendices.
  3. Deleted all references to user class appendices.
  4. Changed Title of Document from GPS Test Standards to Recommended Test Procedures.
  5. Made minor wording changes in section 1.
  6. Section 3.4. Added provisions for invalidating ephemeris by use of satellite simulator.
  7. Section 6.5. Added definition of term (xxxx.
  8. 8. Standardized abbreviations: dB and dBw.
  9. Section 3.3, 3.6, 4.3, and 4.6. Added requirement to record use of initialization data in test results.
  10. Section 2.4. Reworded caution note for 2D DGPS operation.


Copyright, The Institute of Navigation, Inc.

International Standard Book Number: 0-936406-04-6

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