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:

simple gps tracking Production

GPS Tracker wholesale

P02L Smart Walkie-Talkie Tracker

What is the GPS

GPS Navigator

Last article:GPS positioning monitoring system

Next article:GPS navigation solution

Related Information

gps tracker for kids

2023-04-11

fleet solution webfleet solutions

2023-03-16

4G GPS Tracker sales

2023-04-23

real-time gps tracking Manufacturing

2023-04-23

Dog gps tracker wholesale

2023-04-23

4G GPS Tracker for vehicles manufacture

2023-04-23

Dog gps tracker Vendor

2023-03-16

4G GPS Tracker for vehicles sales

2023-04-23

simple gps tracking Factory

2023-04-23

Gps speed limiter maker

2023-04-23

P60L Personal gps tracker

2022-06-21

TK100 (GT06) Vehicle Tracker

2022-06-20

4G Wired GPS Tracker PCBA

2022-06-17

G02M Pet Tracker

2022-06-19

G06L- 4G Car GPS Tracker

2022-09-06

GPS satellites

2022-11-03

Compared with the difference between Beidou positioning and GPS positioning.cat gps tracker Manufact

2023-06-08

What are the elements of buying a driving recorder.gps tracker no monthly fee wholesale

2023-05-09

GPS common signal location

2022-09-28

Signal from GPS receiver

2022-11-08

What should I pay attention to when purchasing GPS products?

2022-11-24

gps vehicle tracker.GPS accuracy

2023-11-14

GPS scheme from hard to soft.obd-II port gps tracker Production

2023-05-23

GPRS/CDMA GPS antenna.gps tracker online Manufacturing

2023-08-02

GPS car driving recorder escorts safe driving

2022-09-21

China Beidou will provide positioning and alarm services to the world

2023-02-15

Compared with the difference between vehicle GPS positioning system and mobile phone navigation.real

2023-04-25

GPS helps you avoid the electronic eye

2023-02-02

Real time monitoring of police cars by GPS positioning

2022-12-17

The Development of GPS.realtime gps tracker online supplier

2023-08-26