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:
simple gps tracking wholesaler
There are many types of GPS satellite receivers.GPS Tracker for vehicles manufacture
Last article:gps tracker and car credit
Related Information
fleet gps trackers wholesale
2023-04-23obd-II port gps tracker
2023-03-16fleet gps tracking maker
2023-04-23Gps speed limiter sales
2023-04-23gps vehicle tracker company
2023-04-11Dog gps tracker Vendor
2023-03-16Car gps tracking wholesaler
2023-04-23Cantrack G05
2023-04-23pet gps tracker cat price
2023-03-164G GPS Tracker for vehicles Production
2023-04-23NB20 -4G Bluetooth Smart Pet Tracker
2022-06-21GF70L-Solar Magnetic Asset GPS Tracker
2023-10-07YG119- Hunting Dog GPS tracker
2023-10-07G200NY -Cow/Camel GPS Tracker
2022-06-21TK200AM-Disposable GPS Tracker
2022-06-21GPS satellite positioning is an inevitable trend
2023-02-23GPS knowledge base: what is RTK technology
2022-12-02GPS satellite positioning instrument function.gps tracker for bike company
2023-05-26GPS user equipment
2023-06-01How to choose high-quality GPS positioning products?fleet tracking mobile app
2023-03-23GPS, get closer to our lives
2023-02-08The Development History of GPS in the United States.4G GPS Tracker for vehicles manufacture
2023-08-19GPS location service.personal gps tracker distributors
2023-05-24GPS monitoring service platform.car gps tracker manufacturer
2023-07-07Why do the antennas need to be facing up when installing a GPS tracker?
2022-09-08The Application of GPS in Automobile Tracker.gps tracker for trailer distributors
2023-08-25Analysis of GPS Antenna Principle
2022-08-18Key Advantages of GPS
2022-10-20What are the costs of buying GPS positioner?obd-II port gps tracker manufacturer
2023-04-06Theoretical Basis of GPS Vehicle Satellite Positioning
2022-08-24