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Satellite frequency measurement system and method

A frequency measurement and satellite technology, applied in the field of satellite control, can solve the problems of frequency acquisition and measurement methods not suitable for low frequency signal measurement

Pending Publication Date: 2021-06-29
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a satellite frequency measurement system and method to solve the problem that the existing frequency acquisition and measurement methods are not suitable for low frequency signal measurement

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  • Satellite frequency measurement system and method
  • Satellite frequency measurement system and method
  • Satellite frequency measurement system and method

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Embodiment Construction

[0044] The satellite frequency measurement system and method proposed by the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0045] In addition, unless otherwise stated, features in different embodiments of the present invention can be combined with each other. For example, a feature in the second embodiment may be used to replace a corresponding or functionally identical or similar feature in the first embodiment, and the resulting embodiment also falls within the scope of disclosure or description of the present application.

[0046] The core idea of ​​the present inve...

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Abstract

The invention provides a satellite frequency measurement system and method. The method comprises the following steps of determining the sampling range time; starting a sampling period, and capturing each jump of a measured frequency signal; recording the first jump of the measured frequency signal after the sampling period starts as a first boundary time point; counting at a high-frequency sampling frequency after the first boundary time point, and counting down the sampling range time; recording the first jump of the measured frequency signal after the sampling range time countdown is ended as a second boundary time point; stopping counting after the second boundary time point to obtain a count value, and recording the jump times of the measured frequency signal between the first boundary time point and the second boundary time point as a jump value; calculating the frequency value of the measured frequency signal according to the count value and the jump value, so that a sampling period is ended.

Description

technical field [0001] The invention relates to the technical field of satellite control, in particular to a satellite adaptive high-precision frequency measurement system and method. Background technique [0002] When the satellite is in orbit, the attitude needs to be controlled according to the requirements. When the attitude control is performed, the closed-loop control is required. During the closed-loop control, the attitude needs to be measured. As the input of the control, it is processed by the attitude control computer. , and send it to the execution component for execution. In order to ensure the measurement accuracy, the interface of some sensors or actuators adopts frequency interface, such as domestic liquid floating gyroscope, imported torque momentum wheel and other stand-alone machines. Therefore, the progress of frequency measurement directly determines the control accuracy and stability of the satellite. Affect the success or failure of the payload missio...

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Application Information

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IPC IPC(8): G01R23/02
CPCG01R23/02
Inventor 常亮陈宏宇陈蕞吴会英常建平斯朝铭刘婷毓陈雯雯冯晓雪余尚敏
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS