source:truck tracking webfleet solutions release time:2023-04-19 Hits: Popular:realtime gps tracker online
1. Pseudo -distance measurement and pseudo -distance single -point positioning
The pseudo -distance measurement is to determine the distance from the satellite to the receiver, that is, the metering code signal transmitted by the satellite to reach the GPS receiver is multiplied by the speed of light. The single point positioning of the pseudo-distance method is to use the GPS receiver to determine the pseudo-distance distance with more than 4 GPS satellites at a moment, and the instantaneous instantaneous coordinates of satellite obtained from satellite navigation. 3D coordinates in the coordinate system.
2. Carrier phase measurement and carrier phase positioning
The carrier phase measurement is the phase delay from the GPS satellite carrier signal to the receiver antenna. The GPS satellite carriers are preserved on the ranging code and navigation electrical text. After receiving the satellite signal, the ranging code and satellite electrical text on the carrier are first removed, and the carrier is re -obtained. It is called rebuilding the carriers. The GPS receiver will obtain the phase difference between the satellite reconstruction carrier and the vibration signal generated by the receiver through the phase meter by the phase meter.
3. Real -time differential positioning
The principle of real -time differential positioning of GPS is to place the GPS receiver (referred to as the benchmark station) on the existing accurate heart coordinate points, and use the known ground -hearted coordinates and the Star Calendar to calculate the correction value of the GPS observation value, and use radio communication through radio communication Equipment (referred to as a data chain) sends the correction to the GPS receiver (called a mobile station) in the movement. The liquid station uses the correctional value to modify its own GPS observation value to eliminate the above errors, thereby improving real -time positioning accuracy. There are many types of GPS dynamic differential methods, including location differences, pseudo -distance differences (RTD), carrier phase real -time difference (RTK), and wide -area differences
Read recommendations:
real-time gps tracking supplier
Where are car mounted GPS locators usually installed.mini gps tracker distributors
Last article:GPS, more and more closely connected with our life.realtime gps tracker online company
Next article:GPS active ranging and passive range.car gps tracker Solution
Related Information
Car gps tracking manufacture
2023-04-23gps vehicle tracker wholesale
2023-04-23gps vehicle tracker Factory
2023-04-23Cantrack Login
2023-04-23Dog gps tracker
2023-04-23vehicle gps tracker
2023-04-11gps vehicle tracker wholesale
2023-04-114G GPS Tracker wholesale
2023-04-234G GPS Tracker custom
2023-04-23gps tracker fur auto webfleet solutions
2023-03-16YG119- Hunting Dog GPS tracker
2023-10-076000mAh Magnetic Asset GPS Tracker
2025-03-31TK100B- Accurate Pro version GT06/TK100
2023-10-06G900LS-4G Car GPS Tracker
2023-10-06G01 Smallest Personal Old People Mini GPS Tracker for Kids
2022-06-19GPS is classified by the working principle of the receiver.obd2 gps tracker verizon sales
2023-06-05Navigation GPS antenna installation location diagram
2022-08-12Handheld GPS navigation products will enter a period of rapid development.
2022-07-13The application of the GPS positioning system in the breeding industry
2023-02-23How to realize the function of GPS monitoring system?
2022-12-02Simulator test GPS
2022-10-10GPS cooperation for multiple wins.mini gps tracker
2023-09-23Main functions of GPS.Gps speed limiter supplier
2023-08-11GPS positioner helps logistics and transportation companies manage transparency and intelligence.obd
2023-03-28What basic functions should Beidou positioning equipment have.Gps speed limiter
2023-10-10The correct method of using the car GPS positioning system shallow analysis.realtime gps tracker onl
2023-03-28What is the function of gps tracker.mileage tracking webfleet solutions
2023-03-13GPS positioning accuracy
2023-02-01Gps speed limiter.GPS signal
2023-11-14GPS positioning manufacturer compares car navigation and mobile navigation.gps tracker no monthly fe
2023-04-08