A Method for Measuring the Vertical Section Deformation of Shipborne Large Radar Base

Abstract

The invention belongs to the technical field of spacecraft measurement and control, and discloses a method for measuring deformation of a vertical section of a shipborne large radar base. In view of the lack of available measurement methods for structural deformation in the vertical direction of current shipborne large-scale radar antenna bases, the method for measuring deformation of the verticalsection of the shipborne large radar base utilizes high-precision structural strain measurement capability of a fiber bragg grating sensor, and through an appropriate installation scheme design and acorresponding local strain variable and global deformation value calculation model, the measured value of the deformation of the radar base in the vertical direction is obtained. The method overcomesthe difficulty that a conventional optical deformation measurement method using a direct connection light path is difficult to implement due to the limited installation space inside the radar base. According to the method for measuring deformation of the vertical section of the shipborne large radar base, the fiber bragg grating sensor can be closely installed on the barrel wall of the radar basein an attaching mode, the space occupation is small, the deformation measurement precision is high, and the deformation of the radar base in the vertical direction can be obtained in real time at seadynamic conditions, so that the measurement accuracy of a shipborne radar can be improved.

Description

technical field [0001] The invention relates to the technical field of space vehicle measurement and control, in particular to a method for measuring deformation of a vertical section of a ship-borne large radar base. Background technique [0002] Due to its unique advantages of all-weather and all-weather applications, radio radar systems play an increasingly important role in space surveillance, target detection, especially in aerospace measurement and control. As one of the most important performance indicators, radar measurement accuracy has long been the focus of research and design by engineers and technicians. Due to the characteristics of platform movement, shipborne radar has more factors restricting the measurement accuracy than land-based radar. Especially due to the influence of ship motion, the shafting error and structural deformation of the radar base have the characteristics of dynamic changes, but due to technical reasons, there has been no suitable method ...

AI Technical Summary

Problems solved by technology

The current emerging camera deformation measurement method is a more convenient method, but still requires a dedicated optical channel, but it is much smaller than the traditional large steel pipe deformation measurement method

The above two types of methods have high precision and the equipment works stably, but the equipment system takes up a lot of space on the deck, and sometimes it is difficult to guarantee the dedicated optical channel

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