Database matching method for antenna thermal deformation compensation based on pointing adjustment

Abstract

The invention discloses a method for matching and calling an antenna thermal deformation compensation database based on pointing adjustment, which includes: obtaining the thermal deformation compensation database according to the collected temperature data and the antenna pointing adjustment amount; collecting the temperature data by a sensor, and calculating the mean square of the collected temperature data group Root error RMS value; the collected temperature data group RMS is matched with the database stored temperature data group RMS, the similarity matching area is calculated and matched, the key matching area is calculated and matched, and the similar matching rate of the matching successful data group is compared to find out Uniquely match the data set to obtain the pointing adjustment amount of the reflector antenna, judge whether the pointing adjustment amount is used for pointing adjustment, and add the newly collected temperature distribution to the database. According to the temperature data collected in real time, the present invention matches and calls the database by matching the RMS value, similarity area, and key area of ​​the matching data, narrows the matching range layer by layer, completes the pointing adjustment compensation of the reflecting surface, and ensures the accuracy and effect of the compensation.

Description

technical field [0001] The invention belongs to the technical field of antennas, and specifically relates to a method for matching and calling an antenna thermal deformation compensation database based on pointing adjustment, which is used for matching the antenna thermal deformation compensation database and realizing database compensation for antenna pointing deviations. Background technique [0002] With the development and deepening of deep space exploration, radar communication, radio astronomy and many other fields at home and abroad, as one of the important basic equipment, the diameter of large reflector antenna is getting bigger and bigger, and the working frequency band is getting higher and higher. The design of the antenna , manufacturing and installation difficulties are also increasing. [0003] Large reflector antennas will undergo structural deformation under the action of their own gravity, wind, rain, snow, and temperature. The deformation of key parts suc...

AI Technical Summary

Problems solved by technology

It can solve the problem that common compensation methods cannot perform real-time compensation for antennas whose electrical performance is degraded due to environmental factors during use, and the real-time performance of antenna deformation compensation adjustment is a key factor that determines whether the compensation adjustment system can work in actual projects

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