source:Industry News release time:2022-07-28 Hits: Popular:realtime gps tracker online
The application of GPS in monitoring the ionosphere is also the beginning of GPS space meteorology. Space is full of plasma, cosmic ray particles, and electromagnetic radiation of various bands. Because the sun often throws out millions of tons of charged objects in one second, the ionosphere is strongly disturbed. This is space weather. an object of research. The total free electron content (TEC) per unit volume is determined by measuring the delay of the ionosphere to GPS signals to establish a global digital model of the ionosphere.
GPS satellites transmit L1 and L2. two carriers. By these two carriers, the influence of the ionosphere on GPS positioning can be weakened, or the ionosphere refraction can be determined. Because this refraction is related to the carrier frequency.
When one builds a regional or global numerical model of the ionosphere, the simplifying assumption is always made that all free electron content is represented on a single plane, which is H above the ground. In this way, the electron content can be expressed as the electron content Es at the intersection point (piercing point) between the receiver and satellite line and the single layer, which can be regarded as the function Ecos of E and the zenith distance Z' at the penetration point Z'=Es. The electron concentration Es on the spherical surface can be modeled, for example, it is written as a spherical harmonic function of latitude and longitude, and many experts have proposed various models in this regard. IGS proposes an ionosphere map exchange format (10nosphere Map Exchange Format, IONEX-Format), its function is to make ionosphere maps obtained based on various theories and technologies to be integrated and compared on the basis of unified specifications . The ionospheric models have different theoretical foundations, and the technology of the data sources obtained is also different, and the data coverage is not complete. Therefore, at present, only the differential code deviations (differential code deviations) of the IGS and various TEC maps around the world and GPS satellite signals can be obtained. code biases—DCBS) are provided to users all over the world in the form of IONEX, and the next step will be to gradually combine them through comparison.
Read recommendations:
4G GPS Tracker for vehicles Manufacturing
gps vehicle tracker Production
C32Plus (9~90V E-bikes/Motorcycle/Car gps tracker)
The GPS system consists of three parts
What is GPS dual -frequency positioning?plug & play Obd gps tracker wholesale
Last article:satellite-satellite tracking technology
Next article:GPS application in troposphere monitoring
Related Information
realtime tracking device
2023-03-164G GPS Tracker for vehicles manufacturer
2023-04-23gps tracker no monthly fee supplier
2023-03-16pet gps tracker cat supplier
2023-03-16pet gps tracker cat sales
2023-03-16OBD GPS Tracker Vendor
2023-03-16fleet gps tracking wholesaler
2023-04-23Pet GPS Tracker Vendor
2023-03-16gps tracker for trailer
2023-03-16gps vehicle tracker maker
2023-04-23Mini Sized GPS Tracker PCBA
2022-06-17G09L -6 inch Tail light tracker
2022-06-203000mAh Magnet Asset GPS Tracker
2025-03-31GF30 Magnet GPS tracker with Voice listen
2022-06-2110000mAh Magnetic Asset GPS Tracker
2025-04-08GPS positioning principle
2022-08-13How to use the Beidou GPS positioner.plug & play Obd gps tracker Processing
2023-04-14What should I pay attention to when buying GPS products?
2022-08-10Type of GPS data format and extraction of positioning information
2022-11-24Why do you still use the GPS of the United States?
2022-11-17What will be affected by the accuracy of LBS positioning.gps tracker no monthly fee manufacturer
2023-03-10A-GPS scheme is favored.gps tracker with magnet Processing
2023-05-23GPS vehicle management system for vehicle management methods.gps tracker für auto webfleet solutions
2023-03-14Troubleshooting the cause of vehicle GPS locator offline and intermittent data.4G GPS Tracker
2023-09-21GPS navigator component-global positioning system
2023-05-16Development of vehicle GPS
2022-12-13What are the built -in cards usually use in the car GPS positioner?gps tracker no monthly fee Manufa
2023-03-28Gps speed limiter.The GPS positioning terminal has the following functions
2023-10-17Installation Instructions for GPS Host Wire.portable gps tracker distributors
2023-08-02Is GPS really powerful?
2023-02-14