Industry News

Home > NEWS > Industry News

Company News

Industry News

GPS application in troposphere monitoring

source:Industry News release time:2022-08-02 Hits:     Popular:realtime gps tracker online


  

  In the GPS application, the orbit error mainly affects the positioning accuracy in the early stage, and the early GPS baseline is relatively short and the height difference is not large, so the research on the troposphere has not been paid much attention. Until recently, the tropospheric refraction has become an important obstacle limiting the improvement of GPS positioning accuracy due to the greatly improved GPS orbit accuracy. Assuming an area with basically zero elevation, if the GPS signal received by the receiver is transmitted from the zenith direction, the delay can reach the order of 2.2-2.6m, and the delay change within 2 hours can reach 2.2-2.6m. 10cm is not uncommon (so the tropospheric parameters provided by the IGS Analysis Center are used at 2-hour intervals). Also because of this fact, the tropospheric refraction is modeled taking into account the variation of its stochastic process.

  In the application of GPS to troposphere research, the fast orbit and forecast orbit information of IGS will play an important role in weather forecasting. In addition, the 2-hour tropospheric zenith delay series provided by IGS through the "IGS Tropospheric Comparison and Coordination Center" at the GFZ in Germany is like a control point, which can be used as a tropospheric delay absolute for regional or local tropospheric studies. value calibration.

  Different from ground-based GPS atmospheric monitoring, satellite-based or space-based GPS occultation methods have the advantages of wide coverage, good vertical resolution, and fast data acquisition. The principle of this technology is to put the GPS receiver on the platform of a certain low-orbit satellite (LEO) or aircraft. GPS occultation technology acts as an atmospheric detector. The GPS/MET research project carried out in 1997 confirmed that this idea is feasible. The CHAMP satellite, scheduled for launch in April 2000, will use GPS occultation to measure global tropospheric refraction (including atmospheric precipitable fraction).

  In the next few years, there will also be SAC-C in Argentina and COS-MIC in Taiwan, my country. These LEO satellites will use on-board GPS to determine the orbit and use the occultation method to measure the atmosphere.

  In the future, using the meteorological and electron concentration cross-section values of the satellite-borne GPS, combined with the data of the ground GPS station, a layered image will be made for use. In the next three years, the GPS/MET project research will be carried out 6 times, and it is expected that it will make a great contribution in weather forecasting, space weather forecasting and meteorological monitoring.


Read recommendations:

gps vehicle tracker Vendor

Cantrack TK100

G02M Pet Tracker

GPS locator installation

Where can the general car positioner be installed.obd13 gps tracker verizon Manufacturing

Last article:GPS application in ionospheric monitoring

Next article:Application of GPS as Satellite Altimeter

Related Information

gps tracker for kids

2023-04-11

Gps speed limiter company

2023-04-23

mini gps tracker custom

2023-04-23

fleet gps tracking Production

2023-04-23

4G GPS Tracker price

2023-04-23

4G GPS Tracker manufacture

2023-04-23

car gps tracker Vendor

2023-04-23

fleet gps tracking wholesale

2023-04-23

car gps tracker Manufacturing

2023-04-23

Gps speed limiter wholesaler

2023-04-23

6000mAh Magnetic Asset GPS Tracker

2025-03-31

YG119- Hunting Dog GPS tracker

2023-10-07

personal gps tracker Production

2022-09-06

4G Wired GPS Tracker PCBA

2022-06-17

G09L -6 inch Tail light tracker

2022-06-20

Vehicle trajectory knowledge of vehicle GPS positioner popularization.gps tracker no monthly fee

2023-03-22

Differences between GPS cold start and hot start

2022-12-01

The editor tells everyone where car GPS is usually installed.obd-II port gps tracker sales

2023-06-16

How to choose GPS

2022-09-26

Analysis of GPS antenna principle

2022-12-02

GPS module accuracy.gps vehicle tracker Solution

2023-07-11

GPS positioning car driving recorder driver ID IC card.Gps speed limiter

2023-09-05

What is the effect of a manufacturer sharing the car positioner?plug & play Obd gps tracker whol

2023-04-14

GPS positioning manufacturers introduce the composition of satellite positioning systems.Dog gps tra

2023-06-14

Do you know the working principle of the pet GPS positioner?realtime gps tracker online wholesaler

2023-03-10

Correct method of using GPS receiver in the field.plug & play Obd gps tracker manufacture.realti

2023-04-13

How to select a suitable vehicle GPS locator

2023-02-21

mini gps tracker.Introduction to the main functions of enterprise users choosing car GPS satellite p

2023-11-11

GPS pseudo-range difference principle

2022-10-11

The manufacturer compares the difference between Beidou positioning and GPS positioning.plug & p

2023-05-12