source:Industry News release time:2022-09-22 Hits: Popular:realtime gps tracker online
The navigation information is modulated on the L1 carrier, and its signal frequency is 50Hz, including the orbit parameters of the GPS satellites, the satellite clock correction number and some other system parameters. The user generally needs to use this navigation information to calculate the position of the GPS satellite in the earth orbit at a certain moment, and the navigation information is also called broadcast ephemeris.
SPS and PPS are GPS systems that provide two different types of services for different users. One is the Standard Positioning Service (SPSS Standard Positioning Service), and the other is the Precision Positioning Service (PPSPrecision Positioning Service). These two different types of services are provided by two different subsystems, the standard positioning service is provided by the standard positioning subsystem (SPSS Standard Positioning System), and the precision positioning service is provided by the precise positioning subsystem (PPSPrecision Positioning System).
SPS is mainly for civilian users all over the world.
PPS is mainly for the military departments of the United States and its allies, as well as civilian licensed users.
In GPS positioning, one or more of the following observations are often used for data processing to determine the coordinates of the to-be-determined point or the baseline vector between the to-be-determined points:
L1 carrier phase observations
L2 carrier phase observations (half-wave or full-wave)
C/A code pseudorange modulated on L1
P-code pseudorange modulated on L1
P-code pseudorange modulated on L2
Doppler shift on L1
Doppler shift on L2
In fact, in the GPS positioning, in addition to using a large number of the above observations for data processing, some special observations formed by certain combinations of the above observations are often used, such as wide-lane observations (Wide- Lane), narrow-lane observations (Narrow-Lane), and ionospheric delay-eliminated observations (Ion-Free) for data processing.
Read recommendations:
4G GPS Tracker for vehicles custom
Last article:gps tracker and car credit
Related Information
4G GPS Tracker for vehicles maker
2023-04-23car gps tracker maker
2023-04-23simple gps tracking Manufacturing
2023-04-23fleet gps tracking Production
2023-04-23Magnetic gps tracker wholesaler
2023-03-16Cantrack TK100
2023-04-11simple gps tracking supplier
2023-04-23gps tracker auto
2023-04-11realtime tracking device
2023-03-16mini gps tracker Manufacturing
2023-04-234G Wired GPS Tracker PCBA
2022-06-17G01 Smallest Personal Old People Mini GPS Tracker for Kids
2022-06-19TK200AM-Disposable GPS Tracker
2022-06-21YG119- Hunting Dog GPS tracker
2023-10-07G183 serials -JOBD GPS Tracker
2022-09-06Global Navigation Satellite System
2022-11-04What are the GPS signals
2022-09-22The reasons and solutions for the slow reaction of the GPS screen.realtime gps tracker online Soluti
2023-05-06Controversy over mandatory installation of locators with video surveillance in taxis
2022-07-16Car GPS Global Positioning System
2023-02-09The development history of GPS
2022-08-12What are the elements of buying a driving recorder.gps tracker no monthly fee wholesale
2023-05-09GPS positioning manufacturer compares car navigation and mobile navigation.gps tracker no monthly fe
2023-04-08Application Prospect of Differential GPS
2022-11-07There are many types of GPS satellite receivers.GPS Tracker for vehicles manufacture
2023-08-26Key Advantages of GPS
2022-10-20Differences between GPS cold start and hot start
2022-12-01Does the car GPS locator cost electricity.simple gps tracking
2023-09-05The manufacturer believes how to determine the radar, GPS, Beidou and radio positioning.gps tracker
2023-06-17GPS Global Positioning System
2022-08-12