The use of GPS theory and technology to remote the atmosphere of the earth and the theory and method of meteorology. Research is called GPS Meteorology (GPSIMET) I GPS Meteorology. After the test results, the application of GPS in other countries such as Japan, such as Japan, has gradually started the application of GPS. GPS/MET detection data has the characteristics of wide coverage (global), high vertical resolution, high accuracy, and high long -term stability.

The atmosphere of the earth is equivalent to a lens. The transmission path of the electromagnetic wave signal (such as the carrier) in the atmosphere will be twisted due to the atmospheric refraction. The stronger the gas density, the stronger the signal refraction The refracted signal can calculate the comprehensive signal refractive index. After proper conversion, the vertical structure of the refraction path of the electromagnetic wave in the atmosphere of each layer can be reconstructed. The radio uses a microwave converter to transmit a signal from the GPS satellite to the receiver. The transmission needs to pass a certain medium. The nature of the signal transmission can explore the nature of the 陔 medium. There are 3 GPS signal refraction sources in the atmosphere, namely dry substances, water and gas and ionization substances.

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