Sunlight temperature time interval simulation method based on Fourier series and ARMA model
A technology of Fourier series and analog method, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve the problem of insufficient number of sunshine temperature collections, etc.
Inactive Publication Date: 2014-01-22
SOUTHEAST UNIV
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[0004] Purpose of the invention: In view of the defects in the prior art about solving the problem that the number of sunshine temperature collections is seriously insufficient in actual research, provide a new method for simulation of sunshine temperature time history based on Fourier series and ARMA model
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[0057] The present invention will be further described below in conjunction with the accompanying drawings.
[0058] The sunshine temperature time-history simulation method based on Fourier series and ARMA model provided in this case uses a temperature sensor to collect sunshine temperature samples, expresses its daily variation characteristic curve using a third-order Fourier series, and uses the ARMA(p,q) model to simulate The typical annual variation curve of sunshine temperature samples is fitted, and on this basis, the time course simulation of sunshine temperature samples is carried out. This simulation method can effectively solve the problem of insufficient solar temperature collection data, and provide important support for the research of solar temperature in various disciplines. Specifically include the following steps:
[0059] Step 10) Collect sunlight temperature samples
[0060] The temperature sensor is connected to the temperature acquisition system, and the...
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The invention discloses a sunlight temperature time interval simulation method based on a Fourier series and an ARMA model. The method includes the steps of (10) collecting a sunlight temperature sample, wherein a temperature sensor is connected to a temperature collecting system, the sunlight temperature of a measured point is collected through the temperature sensor, and accordingly the sunlight temperature sample is formed, (20) determining a daily variation feature curve of the sunlight temperature sample, wherein a daily variation feature law of the sunlight temperature sample is expressed through the three-stage Fourier series, (30) determining a yearly variation feature curve of the sunlight temperature sample, wherein typical yearly variation curves of the sunlight temperature sample are fitted through the ARMA (p,q) model, and (40) carrying out time interval simulation of the sunlight temperature sample on the basis of the preceding steps. The simulation method can effectively solve the difficult problem that collected sunlight temperature data are insufficient extremely and provides important support for sunlight temperature researches in fields of various subjects.
Description
technical field [0001] The invention relates to a time course simulation method of sunlight temperature based on Fourier series and ARMA model. Background technique [0002] Sunshine temperature, as one of the important climate and environmental factors, is involved in important research fields such as agricultural science, biological science, environmental science, and architectural science in my country. One of the important problems is that the number of sunshine temperature collections is difficult to meet the research demand. For example, , when analyzing the temperature fatigue effect of bridge structure steel box girders, it is necessary to obtain the whole process of sunshine temperature effect of the bridge structure in the whole service period, and it is difficult to do it only through the sample collection method of sunshine temperature. Therefore, it is of great significance to solve the problem that the number of sunshine temperature collections is seriously insu...
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Inventor 王高新丁幼亮宋永生
Owner SOUTHEAST UNIV