Method and apparatus for determining field baseline length

Abstract

The present invention provides a method and an apparatus for determining a field baseline length. The method comprises: collecting measured data of a field baseline, wherein the measured data comprises a feature at the time of measurement and a field baseline length measured under the feature, the feature comprises the measurement time and the measured environment data, and the measured environment data comprises the temperature and the humidity; constructing a deep learning model, using the collected measured data of the field baseline to train the deep learning model, and obtaining the correspondence between the field baseline length and the feature; and finally obtaining the current time and the current environment data, and inputting the obtained current time and current environment data into the trained deep learning model to obtain the field baseline length at the current time. According to the technical scheme of the present invention, the finally determined field baseline length at the current time is a constantly changing value over time and environment, and the accuracy and reliability of determining the field baseline length can be improved.

Description

technical field [0001] The invention belongs to the technical field of field baselines, in particular to a method and device for determining the length of field baselines. Background technique [0002] The field baseline is an important part of the national length reference transmission system. Establishing a field baseline and realizing precise ranging will play a vital role in the calibration of large-scale measuring instruments and the verification of long-distance precision ranging instruments. To achieve high-precision length value transfer, it is necessary to accurately measure the length of the field baseline. The traceability methods of field baseline mainly include optical interferometry, 24m Invar baseline ruler method, high-precision photoelectric range finder method and GNSS geodesic receiver method. The schematic diagram of the field baseline after measurement is as follows: figure 1 shown. [0003] A large number of scholars have carried out fruitful researc...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for determining the length of the field baseline, which is used to solve the problem of inaccuracy caused by still using the measured field baseline length in actual use; the invention also provides a device for determining the length of the field baseline, which is used to solve the problem of In actual use, the length of the field baseline at the time of measurement is still used, resulting in inaccurate problems

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