Method for realizing moon rotation measurement based on inverse same beam interferometry measurement technology

A technology of interferometry and rotation measurement, which is applied in the direction of optical device exploration, etc.

Inactive Publication Date: 2017-06-16
NO 63921 UNIT OF PLA
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Problems solved by technology

The implementation difficulty of this method is relatively simple compared with the I-VLBI measurement method proposed by Japan, but the disadvantage of this method is that it needs to configure multiple identical deep-space digital transponders, and the same antenna on the ground is required for measurement

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  • Method for realizing moon rotation measurement based on inverse same beam interferometry measurement technology
  • Method for realizing moon rotation measurement based on inverse same beam interferometry measurement technology
  • Method for realizing moon rotation measurement based on inverse same beam interferometry measurement technology

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[0078] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0079] Compared with the traditional method, the main feature of the present invention is that two lunar signal sources are used to perform same-beam interferometric measurement on two lunar signal sources, and the ionosphere, troposphere, instruments, etc. can be effectively eliminated by double difference. The introduced error significantly improves the measurement accuracy. For the obtained observations of the difference time delay of the same beam interferometry, it also contains the information of the baseline composed of the two signal sources of the moon, so as to...

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Abstract

The invention provides a method for realizing moon rotation measurement based on the inverse same beam interferometry measurement technology. The method comprises the steps that two ground survey stations between which the distance is within 50km are arranged on the ground; two signal sources are arranged on the surface of the moon; the first ground survey station GS1 and the second ground survey station GS2 simultaneously receive the downlink signals forwarded by the first signal source S1 and perform signal phase estimation so as to obtain first inter-station phase difference; the first ground survey station GS1 and the second ground survey station GS2 simultaneously receive the downlink signals forwarded by the second signal source S2 and perform signal phase estimation so as to obtain second inter-station phase difference; the relationship of a baseline formed by the first signal source S1 and the second signal source S2 and differential delay values is established; and moon rotation information is solved according to the relationship of the baseline and the differential delay values. The advantages of the method are that the method has the advantages of being high in measurement accuracy, quite simple in measurement mode and relatively easy to implement and can be widely popularized and used.

Description

technical field [0001] The invention belongs to the technical field of astrometry, and in particular relates to a method for realizing lunar rotation measurement based on an inverse co-beam interferometry technology. Background technique [0002] Lunar laser ranging technology is currently the most important method in lunar rotation measurement. By measuring the distance to multiple laser cooperative targets on the surface of the moon, the moon's rotation can be measured, and the change of the moon's own state can be obtained. [0003] The I-VLBI (Inverse VLBI, inverse VLBI) technique derived from the traditional Very Long Baseline Interferometry (VLBI) is also an effective way to measure the lunar rotation. Its basic principle is as figure 1 Shown: Suppose there are two signal sources located on the surface of the moon, which are the first signal source S 1 and the second signal source S 2 . The first ground station GS is arranged on the ground 1 . 1st ground station...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/16
CPCG01V8/16
Inventor 陈少伍黄磊喻韬孙威石善斌李赞
Owner NO 63921 UNIT OF PLA
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