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Accurate north-finding method for Polaris by vehicle-mounted measurement and control equipment

A measurement and control equipment, the technology of Polaris, is used in measurement devices, mapping and navigation, instruments, etc. It can solve the problems of cumbersome measurement methods and other problems, and achieve the effects of convenient equipment transition, broad application prospects, and simple measurement methods.

Inactive Publication Date: 2019-01-01
李立三
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art and solving the cumbersome problem of the traditional azimuth zero-position deviation measurement method, the present invention provides a method for accurately finding the north of Polaris by vehicle-mounted measurement and control equipment

Method used

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  • Accurate north-finding method for Polaris by vehicle-mounted measurement and control equipment
  • Accurate north-finding method for Polaris by vehicle-mounted measurement and control equipment
  • Accurate north-finding method for Polaris by vehicle-mounted measurement and control equipment

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all Example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] see figure 1 : On a clear night (preferably an environment without strong light sources), use the naked eye to identify Polaris from the northern half of the sky. First turn the antenna pitch angle to the local latitude value. Then turn the azimuth so that the direction of the antenna is roughly in the north direction. Observe the calibration telescope on the antenna base to see if the Polaris is within the field of view of ...

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Abstract

The invention relates to the field of measurement by vehicle-mounted measurement and control devices, and particularly relates to a precise north-seeking method to the north star for a vehicle-mounted measurement and control device. The method is an orientation zero degree comprehensive calibration method suitable for a situation that no reference azimuth mark or other fixed station exists round a vehicle-mounted measurement and control device station. By utilizing a characteristic that the north star is near the north pole, is a second-brightest star and is bright in the night sky, by correcting a light ray refraction error and by utilizing a circle solving formula, the orientation zero offset of a local antenna of the vehicle-mounted measurement and control device is acquired. By adopting the scheme mentioned above, arrangement of marks at fixed points around the device station is not needed, thus reducing manpower and material resources. The method is simple, convenient and reliable in measurement, facilitates equipment transferring, increases measurement precision, is suitable for the situation that no reference azimuth mark or other fixed station exists round the vehicle-mounted measurement and control device station, and has a wide application prospect.

Description

technical field [0001] The invention relates to the measurement field of vehicle-mounted measurement and control equipment, in particular to a method for accurately finding the north of the North Star by the vehicle-mounted measurement and control equipment. Background technique [0002] For each test mission of the vehicle-mounted activity measurement and control equipment, the location of the telemetry equipment must be determined according to the flight characteristics of the mission model and the tracking measurement requirements. After the equipment arrives at the designated location, in order to realize the acquisition and tracking of the target, the antenna azimuth zero deviation of the tracking system must be determined, that is, the azimuth zero deviation correction is performed. If the error of the zero position deviation of the measurement and binding is large, it will cause the telemetry station to use the theoretical ballistic guidance or the central digital gui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C17/34G01C17/38
CPCG01C17/34G01C17/38
Inventor 李立三邵文波赖永松左亚林龙志斌周立丽赵秋颖吕久明姜志富钟明皓
Owner 李立三
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