source:Industry News release time:2022-07-12 Hits: Popular:realtime gps tracker online
When we use GPS for positioning, we will be affected by various factors. The factors that affect GPS positioning accuracy can be divided into the following four categories:
(1) Factors related to GPS satellites
SA Policy
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 (technology) and adding high-frequency jitter to the GPS reference signal (technology).
satellite ephemeris error
When GPS positioning is performed, the satellite orbit parameters required to calculate the GPS satellite position at a certain time are provided by various types of ephemeris [7], but no matter which type of ephemeris is used, the calculated satellite position will be The difference from its true position is called ephemeris error.
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.
Satellite Signal Transmitting Antenna Phase Center Deviation
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 transmission routes
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. The influence of ionospheric refraction on electromagnetic waves is related to the frequency of electromagnetic waves and the total content of electrons in the propagation paths of electromagnetic waves.
Tropospheric delay
Due to the refraction effect of electromagnetic waves by the troposphere around the earth, the propagation speed of GPS signals changes, which is called tropospheric delay. The influence of tropospheric refraction on electromagnetic waves is related to the temperature, humidity and air pressure on the propagation path of electromagnetic waves.
Read recommendations:
P901 4G ID Card GPS Tracker Smart Walkie-talkie
Key Points for GPS Selection.Car gps tracking Production
GPS Tracking Monitoring Promotes Mobile Logistics Management
Last article:Detailed Analysis of GSM Communication Service System
Next article:Application of GSM Network Communication in Vehicle Positioning System
Related Information
gps tracker for trailer
2023-03-16fleet gps tracking
2023-04-23GPS Tracker Solution
2023-04-11car gps tracker
2023-04-114G GPS Tracker for vehicles
2023-03-16Cantrack Login
2023-04-23gps tracker no monthly fee
2023-03-164G GPS Tracker for vehicles Solution
2023-04-23Gps speed limiter Vendor
2023-04-23GPS Trackers wholesale
2023-04-11P901 4G ID Card GPS Tracker Smart Walkie-talkie
2025-07-11G06L
2022-06-216000mAh Magnetic Asset GPS Tracker
2025-03-31G900LM-4G Car GPS Tracker
2025-03-25G900LS-4G Car GPS Tracker
2023-10-06The solution to the weak GPS signal of the car intercepting Gaode map
2022-08-08GPS receiver introduction.gps tracker no monthly fee Solution
2023-05-11Origin of GPS
2022-08-13What are the emphasis on the installation of the GPS positioner?rastreador de GPS wholesaler
2023-03-16Application Prospect of Differential GPS
2022-11-07Intelligent GPS anti-theft electronic system
2022-08-26The application of GPS in car navigation and traffic management
2023-06-02The reasons and solutions for the slow reaction of the GPS screen.realtime gps tracker online Soluti
2023-05-06Talk about the advantage of the use of pet smart positioner.realtime gps tracker online manufacture
2023-03-10Does the electric vehicle installation of the GPS positioner affect the battery?realtime gps tracker
2023-03-25GPS coordinate
2022-11-23Key Points for GPS Selection.Car gps tracking Production
2023-07-20Basic architecture of GPS receiver
2022-10-15Auto GPS information and mobile phone interconnection.gps tracker no monthly fee Factory
2023-05-18The difference between GPS positioner and GPS navigator.GPS Tracker for vehicles manufacturer
2023-04-07