source:truck tracking webfleet solutions release time:2023-09-04 Hits: Popular:realtime gps tracker online
The GPS satellite was developed by the Space Department of Rockefeller International, with a weight of 774kg and a lifespan of 7 years. The satellite adopts a honeycomb structure, with a cylindrical main body and a diameter of 1.5m. The satellite is equipped with two dual leaf solar panels (BLOCK I) on both sides, with a total length of 5.33 meters and a sunlight receiving area of 7.2m2. The solar orientation system controls the rotation of the two wing battery panels to keep the panels aligned with the sun, continuously providing power to the satellite, and charging three sets of 15Ah cadmium nickel batteries to ensure that the satellite can operate normally in the shadow of the Earth. A multi beam directional antenna with 12 units is installed at the bottom of the star, which can transmit signals in two L-bands (19cm and 24cm waves) with an angle of approximately 30 degrees. Omnidirectional telemetry and remote control antennas are installed on both ends of the star for communication with the ground monitoring network. In addition, the satellite is equipped with an attitude control system and an orbit control system to maintain the satellite at an appropriate altitude and angle, accurately aligning with the visible ground of the satellite.
According to the working principle of the GPS system, the higher the accuracy of the onboard clock, the higher its positioning accuracy. Early experimental satellites used a quartz oscillator developed by Hopkins University, with a relative frequency stability of 10? 11/second. The error is 14 meters. After 1974, GPS satellites adopted rubidium atomic clocks with a relative frequency stability of 10? 12/s, error of 8m. In 1977, the BOKCK II model adopted a cesium atomic clock developed by Mars Frequency and Time Systems, and its relatively stable frequency reached 10? 13/second, the error is reduced to 2.9m. In 1981, Hughes developed a relatively stable frequency of 10? The 14/second hydrogen atomic clock results in an error of only 1m for the BLOCK IIR satellite.
Read recommendations:
G09L -6 inch Tail light tracker
GPS navigator component-is a car navigation system
The following aspects mainly affect the performance of GPS antenna
Last article:Principles of GPS System.Cantrack TK100
Next article:GPS reset did not have a substantial impact on car GPS locators
Related Information
fleet gps trackers company
2023-04-23gps vehicle tracker Production
2023-04-11car gps tracker maker
2023-04-23real-time gps tracking price
2023-04-23trailer gps tracker
2023-04-11mini gps tracker Vendor
2023-04-23Pet GPS Tracker wholesale
2023-03-16gps tracker for bike supplier
2023-04-23Gps speed limiter Solution
2023-04-23obd2 tracker wholesale
2023-03-16YG119- Hunting Dog GPS tracker
2023-10-07G05N Vehicle Tracker
2022-06-21G07L 4G GPS Tracker
2022-09-06G200(L) -Magnet GPS Tracker
2022-06-20personal gps tracker Production
2022-09-06GPS drift
2022-12-05Causes of lithium battery explosion
2022-10-18How to choose high-quality GPS positioning products?fleet tracking mobile app
2023-03-23Is GPS really powerful?
2023-02-14Advantages of Galileo positioning system
2022-12-12What's the reason for the shorter standby time of charging GPS locators.Gps speed limiter
2023-10-07Development Trend of Automotive GPS Positioning System
2022-08-26Principle of GPS indoor positioning technology
2022-11-25A brief introduction to several different recorders by the supplier of the driving recorder.gps trac
2023-06-26Introduction to GPS Principles.realtime gps tracker online wholesaler
2023-08-19What are the commonly used car GPS positioner?
2023-02-25What are the elements of buying a driving recorder.gps tracker no monthly fee wholesale
2023-05-09The obvious advantages and characteristics of GPS products
2023-02-01Gps speed limiter.GLONASS Satellite Navigation System
2023-10-11What is the development of the car GPS positioner market development
2023-03-07