Global Positioning Systems (GPS)

What is mean by gps accuracy?

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2013-12-26 18:45:15
2013-12-26 18:45:15

That would be the distance between the place where your

GPS says you are and the place where you really are.

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GPS accuracy greatly improved when a new feature called WAAS (wide area agumentation system) was built in. It is used with GPS systems in the ground to make accuracy better by sending accuracy to a main station, which is then routed to your GPS.

The accuracy for civilian use is four to five meters but for US military use the accuracy is 100%

Most GPS systems have an accuracy of within 10-15 meters. The accuracy of the GPS is compromised when there is an interruption or blockage of the transmission of the signal like road tunnels, mountains, or high buildings.

Weak signal heavy foliage tall buildings will reduce accuracy.

The WAAS systems improves the accuracy, integrity, and availability in a GPS system.The WAAS specification requires the system detect errors in the GPS

It depends on the accuracy of your GPS. An accurate GPS can give you the exact coordinates of your location in the world. For the most part, the higher the cost of a GPS, the more accurate it is.

The easiest way is differential GPS like surveyors use. Add an artificial reference satellite on ground with receiver and calculates errors between its known location and GPS location. This can do mm accuracy even with just civilian CA code.

No it does not. GPS satellites are geosynchronous, so they are in the same place 24 hours a day.

Newer Garmin GPS receiver WAAS (Wide area augmentation system) capability can improve accuracy, averaging less than three meters. No additional equipment or fees to take advantage of WAAS. Users can also get a better differential GPS (DGPS), to correct an average of three to five meters accuracy of GPS signals within range. To get the corrected signal, users must be out by the differential GPS beacon receiver and beacon antenna. Now we use the following GPS receiver for our bus railway system.

Yes, they are. If they were not, your GPS would have at most an accuracy of 50 ft.

don't use civilian GPS when DOD has activated "selective availability" mode.

A watch GPS is just as accurate as a regular dash mounted automotive GPS. They have been able to consolidate the same technology into very small packages, so there is no loss of accuracy.

The accepted accuracy is to within about 10 to 50 feet (3 to 15 metres)

Yes, it can do so with an accuracy of a few meters.

The Garmin Nuvi 660 GPS is a GPS that is very highly recommended in comparison to other GPS systems. It offers cutting edge satellite technology, and has a very high location accuracy rate as opposed to other GPS systems currently present on the market.

According to my research the auto GPS navigation is very accurate. This is an article you may find interesting http://automobilegpsnavigation.co.cc/?tag=accuracy

Several satellites get their readings combined and the GPS averages them to get your position. The longer a GPS station is observed over period of time the higher accuracy for both static real time and hand held units.

GPS' have the capability of locating where it is on earth with a usually high rate of accuracy. Maps are still useful when you can't use a GPS but you have landmarks around you to use as a reference for your location.

Cell phone GPS locators are fairly accurate. If you are looking for pinpoint accuracy, I would recommend a GPS console unit like a Garmin or a Magellan rather than a cell phone.

The use of GPS in guiding airplanes has been proved beneficial to the aviation ... accuracy to that level which the ground based equipment can not do that. ...

If you have a two-frequency GPS receiver with an external antenna and you are on a hill with no trees, the accuracy of your position can be within a centimeter or less. (An area the size of a sugar cube, or less)

Their accuracy will be within about 10 to 50 feet (3 to 15 meters), 95% of the time.

Aerial photography,satellites and gps have increased the accuracy of maps enormously.

DGPS is one of two widely used methods to augment the accuracy of the GPS. Most GPS chips will follow the NMEA standard so that is usually the preferred way of parsing both GPS and DGPS data. Check out the related links for a link to the NMEA GPS standard.


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