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:
Application of GPS Positioning Technology in Network Security
Last article:satellite-satellite tracking technology
Next article:GPS application in troposphere monitoring
Related Information
portable gps tracker wholesaler
2023-03-16mini gps tracker Solution
2023-04-234G GPS Tracker for vehicles
2023-03-16Pet GPS Tracker Vendor
2023-03-16GPS Trackers price
2023-04-11real-time gps tracking wholesale
2023-04-23real-time gps tracking supplier
2023-04-23obd2 gps tracker verizon wholesaler
2023-04-23mini gps tracker wholesale
2023-04-23gps tracker online wholesale
2023-04-23G05N Vehicle Tracker
2022-06-21TK08AL- RFID Car GPS Tracker
2023-10-07NB20 -4G Bluetooth Smart Pet Tracker
2022-06-21TK100B- Accurate Pro version GT06/TK100
2023-10-06TK100 (GT06) Vehicle Tracker
2022-06-20GPS map upgrade
2022-09-26What are the components of GPS
2022-12-13Frequently problem solving of GPS positioner.realtime gps tracker online distributors
2023-03-09Positioning system classification.Car gps tracking manufacturer
2023-05-26Bluetooth GPS technology
2022-10-19gps vehicle tracker.GPS accuracy
2023-11-14GPS application range.gps tracker app Processing
2023-05-25The difference between manufacturers compare the Beidou satellite navigation system and GPS navigati
2023-06-15GSM function of GPS.gps tracker no monthly fee Production
2023-08-15GPS four arm spiral antenna
2022-11-23GPS area measuring instrument.trailer gps tracker supplier
2023-07-19Why do cars load a car GPS positioner.rastreador de GPS wholesale
2023-03-15Introduction to GPS positioning tracker
2022-12-15mini gps tracker.Can car GPS locators be installed on motorcycles
2023-10-24gps vehicle tracker.How to activate and use a previously installed GPS car locator in the car
2023-10-13