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On-orbit self-tuning method of solar radiation monitor based on frequency domain analysis method

A technology of solar radiation and analysis method, which is applied in the field of on-orbit self-tuning of solar radiation monitors, can solve problems that cannot be directly applied on-orbit, and achieve the effect of improving the adaptability of the space environment

Inactive Publication Date: 2019-05-17
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, the fast measurement algorithm based on PI controller cannot be directly applied in orbit

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  • On-orbit self-tuning method of solar radiation monitor based on frequency domain analysis method
  • On-orbit self-tuning method of solar radiation monitor based on frequency domain analysis method
  • On-orbit self-tuning method of solar radiation monitor based on frequency domain analysis method

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[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific 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.

[0041] In order to make the description of the present disclosure more detailed and complete, the following provides an illustrative description of the implementation modes and specific examples of the present invention; but this is not the only form for implementing or using the specific embodiments of the present invention. The description covers features of various embodiments as well as method steps and their sequences for constructing and operating those embodiments. However, other embodiments can also be used to achieve the same or equivalent functions and step sequences.

[0042] E...

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Abstract

The invention relates to the technical field of radiation metrology, in particular to an on-orbit self-tuning method of a solar radiation monitor based on a frequency domain analysis method. The on-orbit self-tuning method comprises the steps that a temperature step response curve of a receiving cavity is obtained, and a mathematical model of the receiving cavity is identified; the mathematical model and an open-loop transfer function of a preset control strategy of a PI controller are established; and the relation between PI controller parameters and frequency domain performance index is established according to the frequency domain analysis method and the open-loop transfer function, an objective function is obtained, and the PI controller parameters are calculated. The method solves theproblem that a fast measurement algorithm of the solar radiation monitor cannot be applied on an orbit, the mathematical model of the receiving cavity is identified, the PI controller parameters areset according to a preset frequency domain performance index, when the working environment of the PI controller changes, the mathematical model of the receiving cavity can be corrected in real time, and spatial environment adaptability of the fast measurement algorithm based on the PI controller is improved.

Description

technical field [0001] The invention relates to the technical field of radiation measurement, in particular to an on-orbit self-tuning method for a solar radiation monitor based on a frequency domain analysis method. Background technique [0002] Total Solar Irradiance (TSI) is the source of energy for the Earth's climate system. Solar radiation provides the vast majority of energy input to the Earth system and drives nearly every dynamic process in the Earth system. The influence of the sun on Earth's climate has received extensive attention. Since 1978, countries such as Europe and the United States have carried out measurements of total solar irradiance based on satellite platforms. Since then, a variety of radiometers have carried different satellite platforms successively, and obtained the total solar irradiance observation data for nearly 40 years. The long-term observation results not only obtain the solar constant, but also reveal the trend of the total solar irra...

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Application Information

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IPC IPC(8): G01R29/08G01J1/42
Inventor 衣小龙方伟叶新吴铎隋龙
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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