truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

Factors related to GPS satellites

source:truck tracking webfleet solutions release time:2022-10-10 Hits:     Popular:realtime gps tracker online

  

  (1) SA

  Starting from its national interests, the U.S. government artificially reduces the accuracy of ordinary users using GPS for navigation and positioning by reducing the accuracy of broadcast ephemeris (ε technology) and adding high-frequency jitter to GPS signals (currently canceled).

  (2) Satellite ephemeris error

  When performing GPS positioning, the satellite orbit parameters required to calculate the GPS satellite position at a certain time are provided by various types of ephemeris, but no matter which type of ephemeris is used, the calculated satellite positions will be the same as their real positions. There is a difference, which is called the ephemeris error.

  (3) Satellite clock difference

  The satellite clock error is the error between the clock face time of the atomic clock installed on the GPS satellite and the GPS standard time.

  (4) Phase center deviation of satellite signal transmitting antenna

  The satellite signal transmitting antenna phase center deviation is the difference between the nominal phase center of the signal transmitting antenna on the GPS satellite and its true phase center.

  2. Factors related to the propagation path

  (1) Ionospheric delay

  Due to the refraction effect of the ionosphere around the earth on electromagnetic waves, the propagation speed of the GPS signal changes, which is called ionospheric delay.

  (2) Tropospheric delay

  For the refraction effect of the troposphere around the earth on electromagnetic waves, the propagation speed of the GPS signal changes, which is called tropospheric delay.

  (3) Multipath effect

  Due to the influence of the surrounding environment of the receiver, the satellite signal received by the receiver also includes the influence of reflected and refracted signals, which is the so-called multipath effect.

  3. Receiver-related factors

  (1) Receive set clock difference

  The receiver clock error is the difference between the clock face time of the clock used by the GPS receiver and the GPS standard time.

  (2) Receiver antenna phase center deviation

  The receiver antenna phase center deviation is the difference between the nominal phase center of the GPS receiver antenna and its true phase center.

  (3) Errors caused by receiver software and hardware

  When GPS positioning is performed, the positioning results are also affected by processing and control software and hardware.

  (4) The phase increase effect caused by the relative rotation of the antenna


Read recommendations:

4G GPS Tracker for vehicles

Pet GPS Tracker Vendor

VSL100 GPS Speed Limiter, Speed Governor

The reason why it is an important navigation that it is inseparable.realtime gps tracker online Prod

Advantages of GPS technology

Last article:GPS installation step

Next article:The main uses of GPS

Related Information

realtime gps tracker online wholesale

2023-04-23

4G GPS Tracker wholesaler

2023-04-23

obd2 gps tracker verizon

2023-03-16

Dog gps tracker company

2023-04-23

fleet gps trackers price

2023-04-23

plug & play Obd gps tracker

2023-04-11

gps tracker with magnet

2023-03-16

simple gps tracking Production

2023-04-23

fleet gps tracking Processing

2023-04-23

Car gps tracking

2023-04-11

TK200AM-Disposable GPS Tracker

2022-06-21

NB20 -4G Bluetooth Smart Pet Tracker

2022-06-21

G900LS 8 Lines-4G Car GPS Tracker

2025-03-31

personal gps tracker Production

2022-09-06

G08L - 4inch Smart Tail Light Tracker

2022-06-20

GPS signal is briefly introduced

2022-11-02

Difference between GPS cold start and warm start

2022-08-16

Introduction to GPS system concept

2022-11-11

The core chip is one of the key parts of a GPS system

2022-10-15

Global Positioning System

2022-10-12

Can the GPS positioning system help the breeding industry save costs?

2023-02-22

What are the classification of GPS system.gps tracker no monthly fee wholesale

2023-04-21

Gps speed limiter.The significance of installing GPS system in vehicle safety management

2023-10-28

GPS Navigation

2022-08-12

The traditional architecture of GPS

2022-11-01

What is the general installation of a car GPS locator?obd2 gps tracker verizon manufacturer

2023-04-14

mini gps tracker.What is the principle of GPS

2023-11-16

GPS RTK principle.gps tracker for kids company

2023-07-03

mini gps tracker.What should be noted when installing Beidou/GPS positioners on electric vehicles

2023-10-28

The principle of GPS is introduced to you

2022-11-19