High-dynamic multi-target orientation angle calibration method under moving base of crustal movement observation network of China

Abstract

The invention relates to a high-dynamic multi-target orientation angle calibration method under a moving base of a crustal movement observation network of China. The high-dynamic multi-target orientation angle calibration method comprise the steps that an inertial platform I and an inertial platform II are placed on the platform surface of a three-axis swinging platform, and a multi-target orientation angle calibration system is placed on the ground beside the three-axis swinging platform; the multi-target orientation angle calibration system is composed of a north-oriented reference mirror, an electronic theodolite I, an electronic theodolite II, an electronic theodolite III, a synchronous control unit, a large-caliber dynamic auto-collimator I and a large-caliber dynamic auto-collimatorII; and the north-oriented reference mirror is used for establishing orientation reference in a laboratory, and the electronic theodolite I and the electronic theodolite II are used for measuring theorientation value of a side surface retroreflector of the large-caliber dynamic auto-collimator I through an angle transmitting mode. The high-dynamic multi-target orientation angle calibration methodunder the moving base of the crustal movement observation network of China is applied to measure the multi-target orientation angles under the moving base of the crustal movement observation networkof China, the large-caliber dynamic auto-collimators are used for synchronously measuring auto-collimation orientation angles, and precise calibration of the orientation angles of an initial collimation system under the condition of the moving base is realized.

Description

technical field [0001] The invention relates to a highly dynamic multi-target azimuth calibration method under a land-state dynamic base, which is applied to measure the azimuth angles of multiple targets under a land-state dynamic base, and uses a large-caliber photoelectric autocollimator to perform self-collimation azimuth Angle synchronous measurement to realize the azimuth accuracy calibration of the initial alignment system under the condition of moving base. Background technique [0002] In the aiming accuracy test of a certain type of land-state dynamic base, multiple inertial platforms are installed on a large three-axis swing table. Among them, the three-axis swing table simulates three-degree-of-freedom dynamic swing plus single-axis and two-way reciprocating linear motion, and the azimuth accuracy of multiple inertial platforms needs to be calibrated at the same time. [0003] The traditional dynamic measurement method is to install a target on the target to be ...

AI Technical Summary

Problems solved by technology

[0004] Due to the large swing line displacement and linear motion of the target to be calibrated, the motion conditions are more complicated, and the installation directions and positions of multiple measured targets are different, resulting in a low probability of capturing all targets at the same time

The caliber of the total station in the traditional method is small, and the moving target stays in the field of view for a long time, which cannot meet this calibration requirement

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