Industry News

Home > NEWS > Industry News

Company News

Industry News

GPS performance index

source:Industry News release time:2023-02-08 Hits:     Popular:realtime gps tracker online

  TK103B

  1. Satellite trajectory

  Here are 24 GPS satellites running around the earth along six orbits (a group of four). Generally, there are no more than 12 satellites on the same side of the earth. Most GPS receivers can track 8-12 satellites. Calculating LAT/Long (2D) coordinates requires at least 3 satellites. You can calculate 3 -dimensional coordinates. For a given position, the GPS receiver knows which satellites are near at this time because it constantly receives a update signal from the satellite.

  2. Paying channel

  Some consumer GPS devices have 2 to 5 parallel channels to receive satellite signals. Because at most 12 satellites are visible (the average is 8), which means that the GPS receiver must access each satellite in order to obtain the information of each satellite.

  Most of the GPS receivers on the market are 12 parallel channel types, which allows them to continuously track the information of each satellite. The advantages of the 12 -channel receiver include the information of the fast -cold start and initialization satellite. Good receiving effect. Generally, the 12 -channel receiver does not require an external antenna, unless you are in a closed space, such as the cabin and compartment.

  3. Positioning time

  This means that when you restart your GPS receiver, it determines the time required for the current location. For the 12 -channel receiver, if you are near the last positioning position, the positioning time when the cold start is generally 3-5 minutes, and the hot start is 15-30 seconds. For the 2 channel receiver, most of the time when the cold starts exceeds more than the cold startup exceeding the starting start, most of the when the cold starts exceeds more than the cold startup exceeding the starter. 15 minutes, 2 to 5 minutes at the time of hot start.

  4. Positioning accuracy

  The level positioning accuracy of most GPS receivers is about 5m to 10m, but this is only when SA is not turned on.

  5. DGPS function

  In order to minimize the impact of the refraction of the SA and the atmosphere, there is a device called the DGPS sender. It is a fixed GPS receiver (set in a radius of 100km to 200km at a exploration site) to receive the satellite signal. Compared, then calculated the "difference", which is very close to the impact of the refraction of SA and the atmosphere. It sends this difference, and other GPS receivers can use it to obtain a more accurate position reading (5m to 10m or less or less Error).


Read recommendations:

plug & play Obd gps tracker

real-time gps tracking Factory

G900LS J16-4G Car GPS Tracker

GPS technology

The difference between mobile GPS positioning and car GPS positioning.gps tracker online wholesaler

Last article:GPS positioning monitoring system

Next article:GPS navigation solution

Related Information

GPS Tracker wholesale

2023-04-11

mileage tracking webfleet solutions

2023-03-16

4G GPS Tracker for vehicles Production

2023-04-23

gps tracker for Car

2023-04-11

gps tracker for bike supplier

2023-04-23

gps tracker with magnet wholesale

2023-03-16

simple gps tracking company

2023-04-23

car gps tracker manufacture

2023-04-23

Hidden GPS Trackers wholesaler

2023-03-16

Dog gps tracker Production

2023-04-23

G200NY -Cow/Camel GPS Tracker

2022-06-21

VSL100 GPS Speed Limiter, Speed Governor

2022-06-19

GF20-Mini Magnet GPS Tracker

2022-06-21

G900LS J16-4G Car GPS Tracker

2023-10-06

personal gps tracker Production

2022-09-06

GPS carrier phase difference principle

2022-10-11

Everyone knows about gps trackers, but what is LBS?

2022-09-15

Really breeding special GPS positioning anti -lost device.fleet management software webfleet solutio

2023-02-24

Beidou Navigation system-GPS system composition and working principle

2022-10-20

Why can't the indoor GPS positioning cannot be achieved.fleetmanagement webfleet solutions

2023-02-24

The Application of GPS Navigation System in Road Engineering.4G GPS Tracker for vehicles equipment

2023-08-24

Brief analysis of problems and solutions of vehicle location tracker.realtime gps tracker online Pro

2023-03-13

GPS signal acquisition unit

2022-11-10

What are the information methods sent by GPS reference stations.gps tracker app Manufacturing

2023-06-14

What kind of gps tracker is easy to use?

2022-09-08

GPS FPGA Program Design

2022-11-10

Overview of GPS Clock.OBD GPS Tracker manufacturer

2023-07-18

GPS RTK principle.gps tracker for kids company

2023-07-03

Xiaobian Xiaobian tells you the role of the truck installation of the Beidou positioning system.plug

2023-04-25

GPS system composition

2023-02-07