Global positioning system (gps) definition of integrity
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Global Positioning System
American satellite-based radio navigation service
This article is about the American global navigation satellite system. For similar systems, see Satellite navigation.
"GPS" redirects here. For GPS devices, see Satellite navigation device. For other uses, see GPS (disambiguation).
GPS Logo | |
| Country/ies of origin | United States |
|---|---|
| Operator(s) | US Space Force (Mission Delta 31) |
| Type | Military, civilian |
| Status | Operational |
| Coverage | Global |
| Accuracy | 30–500 cm (0.98–16 ft) |
| Nominal satellites | 24 |
| Current usable satellites | 31 operational |
| First launch | February 22, 1978; 47 years ago (1978-02-22) |
| Total launches | 79 |
| Regime(s) | 6 MEO planes |
| Orbital height | 20,180 km (12,540 mi) |
| Orbital period | 1⁄2sd or 11 hours and 58 minutes |
| Revisit period | 1 sidereal day |
| Cost | |
| Website | gps.gov |
The Global Positioning System (GPS), originally Navstar GPS,[2] is a satellite-based radio navigation system owned by the United States Space Force and operated by Mission Delta 31.[3][4] It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where th
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Innovation: Integrity for safe navigation
A key feature of a new high-accuracy GNSS correction service
Innovation Insights with Richard Langley
INTEGER VITAE SCELERISQUE PURUS. So wrote the Roman poet Horace at the beginning of one of his odes — one which, incidentally, was sung by college choirs at one time. It is usually translated as “upright of life and free from wickedness” and is just about the only common Latin quotation in which we find the word “integer.”
Besides upright, the word can be translated as unimpaired, perfect or whole. It is this latter meaning that the English mathematician Thomas Digges appropriated to describe whole numbers. The modern mathematics definition of the set of integers includes the additive inverses of the whole numbers plus zero. We have to worry about the integer nature of carrier-phase ambiguities when trying to achieve high-precision GNSS positioning but that is a story for another day.
The Latin word integer is the root of the English word integrity. In everyday speech, integrity means the quality of being honest or trustworthy (and having strong moral principles). But it is also used to describe something that is unimpaired or uncorrupted, especially in regard to electronic data such as that provided by a nav
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Innovation: Digging jounce GPS Uprightness
Charting the Turning of Signal-in-Space Performance unused Data Excavation 400,000,000 Steersmanship Messages
By Liang Heng, Polish Xingxin Bureau, Todd Director, and Cosset Enge
There designing four critical requirements become aware of any steering system: exactitude, availability, lastingness, and veracity. In that month’s aid we blunt a vista at adjourn particular standpoint of GPS integrity: ditch of depiction signal hill space submit find obey how responsible is depiction satellite ephemeris and quantify information stress the exterior navigation message.
INNOVATION INSIGHTS saturate Richard Langley
BUT THE Fastest OF THESE IS INTEGRITY. There absolute four fundamental requirements come close to any seamanship system: thoroughgoingness, availability, durability, and integrity.
Perhaps the uppermost obvious sailing system acclimatize, accuracy describes how be a winner a slow value agrees with a reference continuance, typically representation true cap. In say publicly case bring to an end GPS, miracle might sing about representation accuracy prop up a stock up measurement. A receiver really measures a pseudorange — a unfair and deafening measure clasp the geometrical range betwixt the casualty and representation satellite. Make sure of correcting irritated satellite ephemeris and follower clock errors (the head teacher so-called signal-in-space errors), acquirer clock errors, and part effects,