source:truck tracking webfleet solutions release time:2023-04-23 Hits: Popular:realtime gps tracker online
(1) Observation error. In addition to the distinguishing error, it also includes the resettlement error of receiving an antenna relative to measure. The resolution error is generally considered to be about 1%of the signal wavelength. The resettlement error mainly includes the level of the antenna and the medium error and the height of the center of the antenna phase of the antenna. For example, the antenna is 1.6 m and the flat error is 0.10, and the middle error is 2.10 mm.
(2) The receiver is poor. The GPS receiver generally has high-precision quartz clock with a daily frequency stability of 10-11. If the synchronization difference between the receiver clock and the satellite clock is 1S, the equivalent distance error is 300 m. The method of processing the difference in the receiving machine is used as an unknown, and it is solved in the data processing; the method of poor observation value is used to weaken the impact of the receiving machine bell; Improve the time standard accuracy of the receiver.
(3) The carrier phase observation is unknown throughout the week. It is impossible to directly determine that the carrier phase starts to change the entire week of the transmission path. At the same time, the signal tracking was interrupted and the whole week was caused by the satellite signal being blocked and disturbed by the satellite signal.
(4) The position of the center of the antenna phase. In the GPS positioning, the observation values are based on the center position of the phase of the receiving machine antenna. In theory, the center of the antenna phase and the geometric center of the instrument should be consistent. The change, which is related to the quality of the antenna, can reach several millimeters to several centimeters. How to reduce the offset of the phase center is an urgent issue of antenna design.
Read recommendations:
simple gps tracking distributors
van tracker webfleet solutions
YG119- Hunting Dog GPS tracker
The function of the car GPS.gps tracker no monthly fee wholesaler
Last article:The application of GPS in the traffic system.plug & play Obd gps tracker Manufacturing
Next article:GPS receiver work principle.gps tracker no monthly fee Manufacturing
Related Information
gps vehicle tracker custom
2023-04-23fleet tracking mobile app
2023-03-16GPS Tracker for vehicles Vendor
2023-03-16mini gps tracker maker
2023-04-23Gps speed limiter maker
2023-04-23apple airtags
2023-03-16fleet gps tracking Production
2023-04-23mini gps tracker sales
2023-03-16mini gps tracker company
2023-04-23Magnetic gps tracker wholesaler
2023-03-164G Wired GPS Tracker PCBA
2022-06-176000mAh Magnetic Asset GPS Tracker
2025-03-31G03
2022-06-21GF70L-Solar Magnetic Asset GPS Tracker
2023-10-07G900LS 8 Lines-4G Car GPS Tracker
2025-03-31What are the functions of a car navigator?gps tracker no monthly fee wholesale
2023-04-11The difference between manufacturers compare the Beidou satellite navigation system and GPS navigati
2023-06-15GPS popularization.gps tracker für auto Manufacturing
2023-05-23The main problems affecting the development of the GPS industry
2023-02-16What are the precautions for installing the car GPS positioner
2023-02-25Installation method for automotive GPS locator equipment
2023-09-13There are three parts to the GPS plan
2022-08-12GPS Principles.Pet GPS Tracker manufacturer
2023-07-14Five requirements that a good GPS module must meet
2022-11-07Modernization of GPS.OBD GPS Tracker manufacture
2023-09-08Pet intelligent positioner escort your pet security safety
2023-02-17mini gps tracker.What is the principle of GPS
2023-11-16GPS module with AGPS function
2022-10-12What is the difference between the Internet of Things card or mobile phone SIM card used?truck track
2023-03-23The introduction of GPS in the field of logistics.gps tracker no monthly fee Production
2023-05-06