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Method for establishing meteorological satellite composite channel simulation model under cloudy weather condition

A technology for meteorological satellites and weather conditions, which is applied in the field of meteorological satellite communications and can solve the problems of complex influence of meteorological satellite signals.

Inactive Publication Date: 2013-12-18
南京艾尔达安环信息技术有限责任公司
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Problems solved by technology

Therefore, the influence of cloudy weather on meteorological satellite signals is also more complicated

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  • Method for establishing meteorological satellite composite channel simulation model under cloudy weather condition
  • Method for establishing meteorological satellite composite channel simulation model under cloudy weather condition
  • Method for establishing meteorological satellite composite channel simulation model under cloudy weather condition

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[0046] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0047] The establishment method of the meteorological satellite composite channel simulation model under the cloudy weather condition disclosed by the present invention comprises the following steps:

[0048] (1) Analyze the influence of clouds on the shadowing effect and multipath effect of meteorological satellite signals under cloudy weather conditions, theoretically analyze a...

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Abstract

The invention discloses a method for establishing a meteorological satellite composite channel simulation model under the cloudy weather condition. The method comprises the steps of 1 analyzing the influences on the shadowing effect and the multipath effect of a meteorological satellite signal from a cloud layer under the cloudy weather condition, conducting theoretical analysis and providing a receiving signal envelope probability density function and an error rate upper limit function, and 2 establishing the meteorological satellite composite channel simulation model according to analysis results in the step 1. Directing at the problem of the composite effect from the cloud layer to meteorological satellite communication under the cloudy weather condition, the characteristics of the meteorological satellite composite channel are studied, and through theoretical analysis, model establishing and simulation, the static statistics characteristics of the satellite composite channel can be provided qualitatively, the correctness and the effectiveness of theoretical analysis are proved, and certain technical foundation is laid for studying the performance of a meteorological satellite communication system and optimization of the meteorological satellite communication system.

Description

technical field [0001] The invention relates to the field of meteorological satellite communication, in particular to a method for establishing a composite channel simulation model of a meteorological satellite under cloudy weather conditions. Background technique [0002] The meteorological satellite communication environment is mainly the physical space environment of the atmosphere, and there are many weather phenomena, mainly manifested as clear sky with little cloud, cloudy and rainy weather. When meteorological satellites transmit meteorological information downlink, they will be affected by weather phenomena. When the sky is clear and there are few clouds, the weather system is relatively stable. The signals received by the meteorological satellite ground receiving station mainly include direct signals, and the probability density of the signal envelope obeys the Gauss distribution. [1] . In cloudy and rainy weather, due to the thick cloud cover and large amount of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B7/185H04B17/391
Inventor 张秀再郭业才杨昌军赵益波
Owner 南京艾尔达安环信息技术有限责任公司
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