Remote sensing satellite data transmission link interference protection standard determination method and system

Abstract

The invention discloses a remote sensing satellite data transmission link interference protection standard determination method and system, and the method comprises the steps: evaluating a remote sensing satellite data transmission link, and determining the minimum interference margin capable of being borne by the remote sensing satellite data transmission link and an interference margin factor; calculating the signal-to-noise ratio of the remote sensing satellite data transmission link, and determining the power margin of the remote sensing satellite data transmission link according to the signal-to-noise ratio; comparing the power margin with the minimum interference margin, and taking the larger value as the actual interference margin of the remote sensing satellite data transmission link; calculating an interference signal power density limit value of the remote sensing satellite data transmission link according to the actual interference margin and the interference margin factor; and taking the interference signal power density limit value as an interference protection standard value of the remote sensing satellite data transmission link. According to the method, the interference protection standards of the remote sensing satellite systems are calculated according to the technical characteristics of the remote sensing satellite systems, so that the risk of excessive protection or insufficient protection caused by protection of a remote sensing satellite data transmission link by using a single fixed interference protection standard is avoided.

Description

technical field [0001] The invention relates to the technical field of remote sensing satellite data processing, in particular to a method and system for determining the interference protection standard of remote sensing satellite data transmission links. Background technique [0002] The reliable operation of the remote sensing satellite data transmission link is an important aspect to ensure that the various observation data obtained by the satellite system in orbit can be received by the designated ground system completely, safely and accurately for subsequent analysis. It is one of the most important functions of remote sensing satellites. one. my country's remote sensing satellites have developed rapidly in recent years. Many satellites are in orbit at the same time and use the same frequency for data transmission. At the same time, due to the limitations of natural conditions such as national geographical features and remote sensing satellite illumination, the data tra...

AI Technical Summary

Problems solved by technology

[0004] The research on the frequency compatibility standards of remote sensing satellites in my country started relatively late, and up to now there has not been a unified method for the protection standards of the current remote sensing satellite data transmission links in my country. Values ​​as interference protection criteria

However, the system characteristics such as the orbit height of remote sensing satellites are not the same, and the use of a single fixed interference protection standard may not be applicable to the protection of specific remote sensing satellite data transmission links, which is prone to the risk of over-protection or insufficient protection

Images