Method for testing and calculation of satellite communication earth station power reference value

Abstract

The invention discloses a method for testing and calculation of a satellite communication earth station power reference value. A system transmitting power is affected by factors in multiple aspects such as geographical coverage characteristics of a satellite forwarder, geographical positions of both sides of communication, station size, weather conditions and carrier rates. Especially in an FDMA-DAMA system, control and adjustment of the transmitting power carried out by the system becomes more complex due to characteristics such as dynamic nature and real-time performance of resource allocation. Mainly by designing an improved method of normalized relative power reference value calculation, the method for testing and calculation of the satellite communication earth station power referencevalue greatly reduces the testing amount, enables the test to be more convenient, is wider in application scope as distinguishing of station type is unnecessary, can improve the degree of automationof the satellite communication system and realizes the purpose of rapid networking.

Description

technical field [0001] The invention discloses a method for testing and calculating a power reference value of a satellite communication earth station. In the process of satellite communication networking, the reasonable setting of the radio frequency transmission power of each earth station in the network has always been a difficult problem to solve. Therefore, the calculation efficiency and accuracy of improving the radio frequency transmission power in the satellite communication system are directly related to the system degree of usability. Background technique [0002] In a satellite communication system, the control of system power is a key factor related to the availability of the entire satellite communication system. The transmission power of the system should be reasonably set according to the geographical coverage characteristics of the satellite transponder, the geographical location of the communication parties, the size of the station, the weather conditions, ...

AI Technical Summary

Problems solved by technology

[0004] (1) The test process is complicated. For the test of the power reference value of a station, it is necessary to establish links to multi-station types and multi-stations for multiple tests. When there are many earth stations and various station types in the satellite network, the entire The test volume of the system is large;

[0005] (2) The portability and scalability of the satellite communication system are poor. When the system has been built, if the satellite needs to be replaced or the parameters of the transponder in use are changed, the original test value will not be available and all retests are required

Secondly, when the system needs to be expanded, adding new satellites to the original system or establishing a new earth station, the test workload required for the expanded part is also relatively large;

[0006] (3) The error is large. When the station-to-station power reference value scheme is adopted, because the geographical locations of the earth stations of the same type are different, the reference value is actually obtained by averaging the test values ​​of multiple earth stations of the same type. Sometimes It is quite different from the actual reference value

[0007] Insufficiency of the traditional power reference value test and calculation method is caused by the direct station-to-station power test method

This results in an increase in the test workload. At the same time, in order to reduce the test workload, it is converted to a station-to-station type test. To a certain extent, the test amount is reduced, but it will cause errors caused by different geographical locations of the same type of earth stations.

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