source:Industry News release time:2022-08-02 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:
Car gps tracking Manufacturing
real-time gps tracking Manufacturing
Multiple factors affecting the popularity of mobile GPS.realtime gps tracker online Factory
Last article:GPS satellite-satellite tracking technology
Next article:GPS application in troposphere monitoring
Related Information
Hidden GPS Trackers wholesaler
2023-03-16Car gps tracking distributors
2023-04-23Pet GPS Tracker custom
2023-04-11gps tracker no monthly fee
2023-03-16real-time gps tracking custom
2023-04-23portable gps tracker Vendor
2023-04-23GPS Trackers company
2023-04-11fleet gps trackers Solution
2023-04-23fleet management software webfleet solutions
2023-03-164G GPS Tracker
2023-04-11G07L 4G GPS Tracker
2022-09-06NB20 -4G Bluetooth Smart Pet Tracker
2022-06-21G900LS-4G Car GPS Tracker
2023-10-06GF20-Mini Magnet GPS Tracker
2022-06-21G500M-Mini GPS Tracker
2022-06-20GPS automatic gain control system
2022-11-17GPS system composition
2022-12-05Composition of GPS system
2022-08-12GPS principle
2022-07-23How can the GPS positioner prevent electric vehicles from being stolen?plug & play Obd gps track
2023-03-17What is the difference between vehicle GPS positioning system and vehicle management system?GPS Trac
2023-03-28GPS positioning principle
2022-11-26Disadvantages of Bluetooth GPS receiver.fleet tracking mobile app
2022-11-16The running track of the gps tracker is an important auxiliary evidence
2022-09-16Modernization of GPS.OBD GPS Tracker manufacture
2023-09-08Japan develops global positioning system independently
2022-09-05Do not illegally install GPS trackers
2022-09-14GPS Antenna Channel
2022-08-19How to solve the car GPS positioner?fleet management software webfleet solutions
2023-03-09Factors affecting GPS positioning accuracy.gps tracker for trailer Production
2023-05-18