Device and method for measuring azimuth pointing precision of radar servo base

Abstract

The invention discloses a device and a method for measuring the azimuth pointing precision of a radar servo base. The device comprises a collimator, a high-precision adjustable platform, a theodolite, a fixing tool and an optical platform. The collimator serves as an observation reference, software controls the radar servo base to rotate by a specific angle value, the theodolite is rigidly connected with the radar servo base, the actual rotation value of the radar servo base can be measured, and the absolute value of the difference between the azimuth feedback value of the radar servo base and the actual rotation angle value of the azimuth measured by the theodolite is calculated, and the the absolute value is the pointing precision of the radar servo base at the angle. According to the device and method, the pointing precision of the radar servo base is accurately measured in the internal field, the measuring method is simple and easy to operate, the process controllability is good, the measuring time is shortened, and the measuring precision is improved.

Description

technical field [0001] The invention relates to the technical field of debugging, in particular to a measuring device and method for the azimuth pointing accuracy of a radar servo base. Background technique [0002] With the continuous development of phased array radar technology, the precision requirements of phased array radar are getting higher and higher. As an important part of the phased array radar, the radar servo base has the functions of supporting and driving the rotation and positioning of the antenna. Its pointing accuracy directly affects the accuracy of the phased array radar antenna. Usually, the detection mechanism is used to measure the rotation angle from the initial position of the radar servo base to the target position, and compared with the rotation angle value fed back by the system, to realize the precise measurement of the pointing accuracy of the radar servo base. The measurement value of the pointing accuracy is the basis for the software to com...

AI Technical Summary

Problems solved by technology

[0003] The external field measurement is mostly limited by environmental and equipment factors and the accuracy is not high, while the internal field measurement has stricter requirements on equipment and measurement methods

Typically, a method that uses the inversion of a high-precision turntable to calibrate the steering angle of the radar servo base, but this method has the disadvantages of introducing errors in the turntable and requiring high precision for the turntable; a method found on the radar servo base One reference point, after the seat body drives the reference point to rotate, use the optical equipment transfer station to measure the rotation angle difference before and after the reference point, so as to calibrate the steering angle of the radar servo seat body, but there are reference points and optical measurement transfer stations in this method. The error introduced is not easy to operate and the measurement accuracy is not high

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