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Method for photoelectric theodolite calibration in external field

A technology of photoelectric theodolite and star calibration, applied in instruments, measuring devices, etc., can solve problems such as affecting the accuracy of measurement data

Inactive Publication Date: 2015-08-19
BEIJING INST OF ENVIRONMENTAL FEATURES
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Problems solved by technology

Therefore, it is necessary to calibrate the photoelectric theodolite before the start of the measurement task, otherwise it will affect the accuracy of the measurement data

Method used

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  • Method for photoelectric theodolite calibration in external field
  • Method for photoelectric theodolite calibration in external field
  • Method for photoelectric theodolite calibration in external field

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Embodiment Construction

[0039] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for the purpose of illustration only, and in no way limits the invention and its application or usage.

[0040] The photoelectric theodolite is an important measurement device for aircraft experiments. It is mainly used for the close ballistic measurement of the power section and re-entry section of the aircraft. It is also used for the accuracy appraisal of the radio external measurement system and the live record of the launch period. In the field flight experiment mission, the photoelectric theodolite equipped on the measuring vehicle will produce zero position difference, orientation difference, collimation difference and various individual differences after the road bumps and various uncontrollable external forces such as environment, temperature, pressure, etc. . Therefore, it is necessary to...

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Abstract

The invention relates to a method for photoelectric theodolite calibration in an external field. According to the method, fixed stars satisfying magnitude requirements in a field range are selected as fixed stars to be detected, aiming at all the fixed stars to be detected, azimuth angle theoretical values, angular altitude theoretical values, azimuth angle observed values and angular altitude observed values of the fixed stars to be detected are respectively acquired by a photoelectric theodolite, equation sets of the azimuth angle theoretical values, angular altitude theoretical values, azimuth angle observed values and angular altitude observed values of the fixed stars to be detected and individual differences of the photoelectric theodolite are determined, and individual differences of the photoelectric theodolite are calculated by a least square method according to the equation sets of the fixed stars to be detected. The method can accurately calculate individual differences of the photoelectric theodolite and improve accuracy of photoelectric theodolite calibration in the external field.

Description

technical field [0001] The invention relates to the field of photoelectric product application technology, in particular to an outfield star calibration method for a photoelectric theodolite. Background technique [0002] The technical background related to the present invention will be described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] The photoelectric theodolite is a photoelectric telescope used for precise angle measurement, which can realize the simultaneous real-time recording of the image of the measured target, the azimuth angle and the elevation angle at the time of measurement. The photoelectric theodolite is an important measurement device for aircraft experiments. It is mainly used for the close ballistic measurement of the power section and re-entry section of the aircraft. It is also used for the accuracy appraisal of the radio external measurement system and the live record of the launch perio...

Claims

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Application Information

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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 董宝森赵剑宇
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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