source:truck tracking webfleet solutions release time:2023-06-08 Hits: Popular:realtime gps tracker online
1. Use three -frequency signal
GPS uses a dual -frequency signal, and Beidou uses a three -frequency signal. Based on the differences that the dual -frequency carrier signal is affected by the delay of the ionization of the electrical layer, the effect of the ionization layer on the electromagnetic wave signal can be weakened by calculating the ionization layer delay.
The use of three -frequency signals can better offset the high -level error of the ionizer, the positioning is more accurate, and when a certain frequency point cannot be used, the dual -frequency can be switched. This is the post -issuing advantage of Beidou.
2. Combination of active positioning and passive positioning
The active positioning refers to sending the location information to the satellite during the positioning process, and the passive positioning receiver does not need to send information to the satellite. Under the active positioning technology, as long as there are 2 satellites, you can locate, and at least 4 satellites must be available under normal passive positioning to achieve positioning. In some cases of poor searches in some environment, the superiority of active technology is reflected.
3. Short newspaper communication service
This is a unique technology in China. The so -called shorthe newspaper refers to the two -way information transmission between the user terminal and the satellite through satellite signals, which is more suitable for communication in emergencies. During the 2008 Wenchuan earthquake, the only way to communicate in the earthquake area was the Beidou generation.
4. Domestic monitoring
The Beidou III system first uses the measured star link technology of the KA frequency band. This technology enables all Beidou satellites into a large net. Each star can "call", can be ranged, one -star, star -oriented, which greatly improves the accuracy of satellite positioning. In addition, the star -carrier clocks of each satellite can be synchronized to improve the accuracy of the time synchronization of the entire navigation system.
Read recommendations:
Last article:Summarized the application of Beidou satellite.Car gps tracking distributors
Next article:Compared with the difference between Beidou positioning and GPS positioning.cat gps tracker Manufact
Related Information
realtime gps tracker online Factory
2023-04-23Dog gps tracker Factory
2023-04-23Special Looks GPS Tracker PCBA
2023-03-16obd-II port gps tracker
2023-04-23mini gps tracker maker
2023-04-23Portable car gps systems
2023-03-164G GPS Tracker for vehicles supplier
2023-04-23cat gps tracker wholesaler
2023-04-23Dog gps tracker manufacturer
2023-04-23fleet solution webfleet solutions
2023-03-16G200NY -Cow/Camel GPS Tracker
2022-06-216000mAh Magnetic Asset GPS Tracker
2025-03-31G06L- 4G Car GPS Tracker
2022-09-06TK100 (GT06) Vehicle Tracker
2022-06-20personal gps tracker Production
2022-09-06How to find the GPS locator on the car?obd2 gps tracker verizon supplier
2023-03-16Global Positioning System
2022-10-12GPS pseudo -distance measurement introduction.gps tracker for trailer distributors
2023-04-20GPS pseudo-range difference principle
2022-10-11Composition of GPS PXI acquisition equipment system
2022-11-11GPS area measuring instrument.car gps tracker distributors
2023-07-19What are the key points for purchasing in car GPS.personal gps tracker Solution
2023-06-16GPS Tracker Basic Features
2022-09-21Civil GPS
2022-12-28GPS selection.Hidden GPS Trackers wholesale
2023-06-28The combination of GPS and GIS.realtime gps tracker online wholesaler
2023-05-06AGPS and GPS technical principles
2022-10-14GPS application in agriculture.realtime gps tracker online manufacture
2023-04-24GPS receiver work principle.gps tracker no monthly fee Manufacturing
2023-04-23Does the electric vehicle installation of the GPS positioner affect the battery?realtime gps tracker
2023-03-25