source:truck tracking webfleet solutions release time:2023-04-20 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:
G01 Smallest Personal Old People Mini GPS Tracker for Kids
Last article:GPS pseudo -distance measurement introduction.car gps tracker supplier
Next article:GPS active ranging and passive range.gps tracker no monthly fee Production
Related Information
Pet GPS Tracker Vendor
2023-03-16fleet gps tracking company
2023-04-23GPS Tracker custom
2023-04-11airtag for dog
2023-03-16Gps speed limiter distributors
2023-04-23Gps speed limiter manufacture
2023-04-23Dog gps tracker Production
2023-04-23Cantrack G05
2023-04-11pet gps tracker cat Manufacturing
2023-03-16fleet gps trackers custom
2023-04-23GF20-Mini Magnet GPS Tracker
2022-06-21G09L -6 inch Tail light tracker
2022-06-20G01 Smallest Personal Old People Mini GPS Tracker for Kids
2022-06-19TK200AM-Disposable GPS Tracker
2022-06-21G03
2022-06-21GPS coordinates (CoordInate).fleet gps trackers manufacture
2023-06-10Fire truck installed with GPS global positioning navigation system
2023-02-06How receivers and drones leave GPS
2022-09-13Composition of GPS PXI acquisition equipment system
2022-11-11Cold start, warm start and hot start of gps
2023-02-01GPS signal acquisition unit
2022-11-10GPS navigation satellite has a high-precision atomic clock for time service
2022-12-29Main Errors and Elimination Algorithms in GPS Positioning
2022-09-06Timing method of GPS synchronous clock
2022-11-18The significance of GPS positioning technology in the construction machinery industry.obd2 gps track
2023-03-16GPS receiver host.gps tracker no monthly fee supplier
2023-05-11GPS remote control function.realtime gps tracker online Production
2023-08-02China Beidou Navigation System?
2022-11-17gps vehicle tracker.The System Architecture and Main Functions of Bus GPS Monitoring and Dispatching
2023-11-03GPS satellites
2022-11-03