Precise Positioning Service Performance Standard - GPS.gov

More documents

Recommendations

Info

February 2007 GPS PPS PS SECTION A.5 Integrity ................................................................................ A-21 A.5.1 Relationship with Section 3.5 .....................................................................................A-21 A.5.2 URA Relationship to Integrity......................................................................................A-21 A.5.3 URA-Derived Integrity Tolerance................................................................................A-22 A.5.4 Nature of PPS SIS URE..............................................................................................A-23 A.5.4.1 Integrity Failure Modes and Effects ....................................................................A-23 A.5.4.2 Control Segment Monitoring and Intervention....................................................A-25 A.5.4.3 Control Segment Preemptive Actions.................................................................A-26 A.5.4.4 Satellite On-Board Monitoring and Intervention .................................................A-27 A.5.5 Timely Alert Considerations........................................................................................A-27 A.5.6 Nature of PPS SIS URE Time Derivatives..................................................................A-28 A.5.6.1 URE Time Derivative Illustrations for Integrity....................................................A-28 A.5.6.2 URE Second Time Derivative Illustrations..........................................................A-29 A.5.6.3 Combinations of URE Time Derivatives .............................................................A-31 SECTION A.6 Continuity............................................................................. A-33 A.6.1 Relationship with Section 3.6 .....................................................................................A-33 A.6.2 Various Types of Failures and the Impacts on Continuity ..........................................A-33 A.6.2.1 Hard Failures ......................................................................................................A-33 A.6.2.2 Wear-Out Failures ..............................................................................................A-34 A.6.2.3 Soft Failures........................................................................................................A-34 A.6.2.4 Satellite O&M Activities.......................................................................................A-35 A.6.3 Losses of Continuity....................................................................................................A-35 A.6.4 Expected Frequencies for Losses of Continuity .........................................................A-36 A.6.5 Expandable Slot Continuity.........................................................................................A-37 SECTION A.7 Availability ........................................................................... A-38 A.7.1 Relationship with Section 3.7 .....................................................................................A-38 A.7.2 Per-Slot Availability .....................................................................................................A-38 A.7.2.1 Satellite Outage Categories................................................................................A-38 A.7.2.2 Conservative Satellite/Slot Availability Model.....................................................A-38 A.7.2.3 Satellite/Slot Availability Computation ................................................................A-39 A.7.2.4 Expandable Slot Availability ...............................................................................A-39 A.7.2.5 Equivalent-or-Better Non-Standard Expanded Slot Configurations ...................A-40 A.7.3 Baseline Constellation Availability ..............................................................................A-43 A.7.4 Availability of Accuracy ...............................................................................................A-43 A.7.4.1 PDOP≤6.0 Threshold for “Availability of Adequate Accuracy” ...........................A-43 A.7.4.2 Availability of Accuracy Impacts Due to Expanded Slots ...................................A-44 A.7.4.3 Availability of Accuracy Impacts Due to Surplus Satellites.................................A-44 1 st Edition Page A-ii
February 2007 GPS PPS PS List of Figures Figure A.3-1. Illustration of Satellite Footprint ........................................................................... A-4 Figure A.3-2. Illustration of Terrestrial Service Volume............................................................. A-5 Figure A.4-1 UERE Graceful Degradation ................................................................................ A-7 Figure A.4-2a UERE as a Function of AOD, One-Upload-Per-Day Scenario........................... A-8 Figure A.4-2b UERE as a Function of AOD, Three-Uploads-Per-Day Scenario ...................... A-8 Figure A.4-3 Statistical PPS SIS URE as a Function of AOD, One-Upload-Per-Day Scenario A-9 Figure A.4-4 Instantaneous PPS SIS URE as a Function of Time............................................ A-9 Figure A.4-5a Instantaneous PPS SIS URE as a Function of Time..........................................A-16 Figure A.4-5b Instantaneous PPS SIS URRE as a Function of Time.......................................A-16 Figure A.4-5c Instantaneous PPS SIS URRRE as a Function of Time.....................................A-16 Figure A.4-6 Illustration of Spatial Dependency - Horizontal Orbit Error...................................A-18 Figure A.4-7 Illustration of Spatial Dependency - Radial Orbit Error.........................................A-19 Figure A.5-1 Types of URE Effects ...........................................................................................A-24 Figure A.5-2 Types of URE/URRE Effects ................................................................................A-29 Figure A.5-3 Types of URE/URRRE Effects ..............................................................................A-30 Figure A.5-4 Combined URE Time Derivative Examples..........................................................A-32 Figure A.7-1 Illustration of Nominal and Expanded Slot Configurations ...................................A-40 Figure A.7-2 Illustration of Equivalent-or-Better Non-Standard Configurations (1 of 2)............A-41 Figure A.7-2 Illustration of Equivalent-or-Better Non-Standard Configurations (2of 2).............A-42 List of Tables Table A.2-1. Baseline Constellation Almanac, at Epoch of 00:00:00 on 1 Jul 93 ..................... A-2 Table A.2-2. Expanded Baseline Constellation Almanac, at Epoch of 00:00:00 on 1 Jul 93.... A-3 Table A.4-1 Dual-Frequency P(Y)-Code UERE Budget Without WAGE ..................................A-12 Table A.4-2 L1 Single-Frequency P(Y)-Code UERE Budget Without WAGE...........................A-12 Table A.4-3 Dual-Frequency P(Y)-Code UERE Budget With WAGE .......................................A-13 Table A.4-4 L1 Single-Frequency P(Y)-Code UERE Budget With WAGE................................A-13 Table A.5-1 PPS URA Index to Expected URE Relationship....................................................A-21 Table A.5-2 Normal Distribution Bounds vs. Probability of Exceeding Those Bounds .............A-22 Table A.5-3 Potential Integrity Failure Modes ...........................................................................A-23 Table A.7-1 Per-Satellite/Slot Availability Model Parameters for Baseline Slots ......................A-39 Table A.7-2 Constellation Availability ........................................................................................A-43 1 st Edition Page A-iii
Page 1 and 2: GLOBAL POSITIONING SYSTEM PRECISE P
Page 3 and 4: ASSISTANT SECRETARY OF DEFENSE 6000
Page 5 and 6: February 2007 GPS PPS PS TABLE OF C
Page 7 and 8: February 2007 GPS PPS PS List of Fi
Page 9 and 10: February 2007 GPS PPS PS SECTION 1.
Page 11 and 12: February 2007 GPS PPS PS 1.3 GPS PP
Page 13 and 14: February 2007 GPS PPS PS PPS SIS Ri
Page 15 and 16: February 2007 GPS PPS PS satellite'
Page 17 and 18: February 2007 GPS PPS PS 2.2.2 GPS
Page 19 and 20: February 2007 GPS PPS PS (2) The si
Page 21 and 22: February 2007 GPS PPS PS (9) The 8-
Page 23 and 24: February 2007 GPS PPS PS 2.4.4 PPS
Page 25 and 26: February 2007 GPS PPS PS SECTION 3.
Page 27 and 28: February 2007 GPS PPS PS Table 3.2-
Page 29 and 30: February 2007 GPS PPS PS 3.4 PPS SI
Page 31 and 32: February 2007 GPS PPS PS 4. The “
Page 35 and 36: February 2007 GPS PPS PS purposes i
Page 39 and 40: February 2007 GPS PPS PS 3.7.3 Oper
Page 41 and 42: February 2007 GPS PPS PS MSO-C145 M
Page 43 and 44: February 2007 GPS PPS PS TOR S3-G-8
Page 45 and 46: February 2007 GPS PPS PS GLOBAL POS
Page 47: February 2007 GPS PPS PS TABLE OF C
Page 51 and 52: February 2007 GPS PPS PS SECTION A.
Page 53 and 54: February 2007 GPS PPS PS Notes: e
Page 55 and 56: February 2007 GPS PPS PS frequencie
Page 57 and 58: February 2007 GPS PPS PS is shown a
Page 59 and 60: February 2007 GPS PPS PS Recognize
Page 61 and 62: February 2007 GPS PPS PS discontinu
Page 63 and 64: February 2007 GPS PPS PS Table A.4-
Page 65 and 66: February 2007 GPS PPS PS ensemble o
Page 67 and 68: February 2007 GPS PPS PS A.4.8 UTC(
Page 69 and 70: February 2007 GPS PPS PS An observe
Page 73 and 74: February 2007 GPS PPS PS detect the
Page 75 and 76: February 2007 GPS PPS PS (6) The br
Page 77 and 78: February 2007 GPS PPS PS end user.
Page 79 and 80: February 2007 GPS PPS PS Instantane
Page 81 and 82: February 2007 GPS PPS PS Figure A.5
Page 85 and 86: February 2007 GPS PPS PS In the cas
Page 87 and 88: February 2007 GPS PPS PS upper boun
Page 89 and 90: February 2007 GPS PPS PS When it is
Page 91 and 92: February 2007 GPS PPS PS Aft Nomina
Page 93 and 94: February 2007 GPS PPS PS A.7.3 Base
Page 95 and 96: February 2007 GPS PPS PS GLOBAL POS
Page 97 and 98: February 2007 GPS PPS PS TABLE OF C
Page 99 and 100:
February 2007 GPS PPS PS List of Fi
Page 101 and 102:
February 2007 GPS PPS PS SECTION B.
Page 103 and 104:
February 2007 GPS PPS PS B.1.2 Glob
Page 105 and 106:
February 2007 GPS PPS PS B.2.2 Basi
Page 107 and 108:
February 2007 GPS PPS PS often used
Page 109 and 110:
February 2007 GPS PPS PS B.2.4.3.2
Page 111 and 112:
February 2007 GPS PPS PS Percentage
Page 113 and 114:
February 2007 GPS PPS PS B.3.1.3 "G
Page 115 and 116:
February 2007 GPS PPS PS and VDOP v
Page 117 and 118:
February 2007 GPS PPS PS Notes: 1.
Page 119 and 120:
February 2007 GPS PPS PS B.3.2 Posi
Page 121 and 122:
February 2007 GPS PPS PS Note: 1. T
Page 123 and 124:
February 2007 GPS PPS PS rotated 90
Page 125 and 126:
February 2007 GPS PPS PS Weighted S
Page 127 and 128:
February 2007 GPS PPS PS fully popu
Page 129 and 130:
February 2007 GPS PPS PS Notes: 1.
Page 131 and 132:
February 2007 GPS PPS PS B.4.2 Real
Page 133 and 134:
February 2007 GPS PPS PS Table B.4-
Page 135 and 136:
February 2007 GPS PPS PS HUL HPL HU
Page 137 and 138:
February 2007 GPS PPS PS R95 = UHNE
Page 139 and 140:
February 2007 GPS PPS PS Although i
Page 141 and 142:
February 2007 GPS PPS PS 2. The SEM
Page 143 and 144:
February 2007 GPS PPS PS GLOBAL POS
Page 145 and 146:
February 2007 GPS PPS PS TABLE OF C
Page 147 and 148:
February 2007 GPS PPS PS SECTION C.
Page 149 and 150:
February 2007 GPS PPS PS Satellite
Page 151 and 152:
February 2007 GPS PPS PS SECTION C.
Page 153 and 154:
February 2007 GPS PPS PS - F - FOC
Page 155 and 156:
February 2007 GPS PPS PS - R - R R9
show all

Precise Positioning Service Performance Standard - GPS.gov

Create successful ePaper yourself

Delete template?

Save as template?