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A scene-adaptive satellite signal receiving and processing method

A technology of satellite signal and processing method, which is applied in the field of satellite communication measurement and can solve problems such as satellite channel parameter measurement

Active Publication Date: 2020-09-18
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is oriented to S-band satellites. Under different latitude and longitude and surface topography, the satellite channel parameters are obtained through the scene adaptive method, and the satellite channel parameter measurement problem under rapid scene changes is solved.

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  • A scene-adaptive satellite signal receiving and processing method
  • A scene-adaptive satellite signal receiving and processing method
  • A scene-adaptive satellite signal receiving and processing method

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Embodiment Construction

[0061] The invention overcomes the deficiencies of the prior art and provides a scene-adaptive satellite signal receiving and processing method, which realizes satellite signal receiving and processing through gain self-adaptation, antenna tracking self-adaptation and fitting algorithm self-adaptation. This method is oriented to S-band satellites. Under different latitude and longitude and surface topography, the satellite channel parameters are obtained through the scene adaptive method, which solves the problem of satellite channel parameter measurement under rapid scene changes.

[0062] An adaptive satellite signal receiving and processing method, the realization steps are as follows:

[0063] (1) The signal transmission module generates test cases. For the measurement of S-band satellite channels, this method designs two kinds of measurement cases, such as single-frequency sine wave and long code Gaussian pseudo-random sequence, which can analyze the envelope, phase and mu...

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Abstract

Disclosed is a method for receiving and processing scene adaptive satellite signals. The method comprises generating a test case; judging measurement environment; adaptively adjusting gain; measuringbasic parameters; completing the adaptive adjustment of an antenna; obtaining collineation component and the satellite signal of a target measurement scene; and finally extracting satellite signal characteristics to complete channel model fitting. According to the method for receiving and processing the scene adaptive satellite signals, compared with the prior art, the present invention is for theS-band satellites and is used for measuring satellite signal transmission channel parameters from satellite orbits to the surface under different latitude and longitude conditions, and different surface and geomorphology conditions; the problem of the satellite channel parameter measurement under rapid scene change is solved; and the method has a good use value.

Description

technical field [0001] The invention relates to the field of satellite communication measurement, in particular to a scene-adaptive satellite signal receiving and processing method. Background technique [0002] Satellite channel characteristics are the basis of satellite communication system design. The satellite mobile channel fading mainly includes path loss, shadow fading and multipath fading. In theory, path fading is mainly related to transmission distance and frequency, shadow fading follows Lognormal distribution, and multipath fading follows Rayleigh distribution. The United States, Japan, Canada, Australia and other countries measure the specific parameters of the signal based on the latitude and longitude, topography, and electromagnetic state of the test points to characterize the actual changes in signal reception. At present, satellite channel models mainly include C.Loo, Corraza and Lutz models. The measurement method is to use a signal generating device pla...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/13G01S19/37
Inventor 李久超陈东张千柴源陈明章边炳秀孙治国高新宇
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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