Automatic Wavelength Calibration and Flow Calibration Method for One-Dimensional Spectrum of Space Objects
A wavelength calibration and space object technology, applied in the field of spectral data processing of space objects, can solve the problems of time-consuming, labor-intensive, low precision, etc., achieve the effect of less manual intervention, no system deviation, high calibration accuracy and reliability
Active Publication Date: 2018-01-12
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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[0004] In view of this, the technical problem to be solved by the present invention is: for a system without a calibration lamp, it is time-consuming and laborious to perform accurate wavelength and flow calibration on the spectrum of space objects, and the accuracy is not high
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[0036] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The method for wavelength calibration and flow calibration of space object spectrum in the present invention performs wavelength calibration and flow calibration for general spectrum, and finally data sorting. The wavelength calibration in the first step is the basis for the flow calibration in the second step, and the final step is to sort out the data results.
[0037] This embodiment provides a general method for wavelength calibration and flow calibration of one-dimensional spectra of space objects. The determination method includes three steps: a wavelength calibration step, a flow calibration step, and an archiving step.
[0038] In the following, the figure 1 These 3 steps are shown in detail.
[0039] Step 1: wavelength calibration step.
[0040] The wavelength calibration step includes the following sub-steps:
[0041] Sub-step A: O...
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The invention relates to a general automatic wavelength and flow calibration method for the one-dimensional spectrum of a space object. The method includes the following steps: a wavelength calibration step, which is used to perform wavelength calibration on the space object according to the wavelength calibration star spectrum standard; the flow calibration step is used to correct the spectrum after wavelength calibration according to the response curve obtained by the spectrum of the standard star to obtain the spectrum after flow calibration; The spectral results are sorted out, and a table with a fixed format is generated according to the user's needs. The method of the invention does not need to calibrate the lamp spectrum, and is reliable, high in precision, simple in operation and easy to implement.
Description
technical field [0001] The invention relates to the field of spectral data processing of space objects, and relates to a universal automatic wavelength and flow calibration method for one-dimensional spectrum of space objects without relying on calibration lamp spectrum. Background technique [0002] The spectrum of a space object contains dozens or even hundreds of times more information than photometry. However, accurate wavelength and flow calibration for it has always been a time-consuming and laborious task, and the accuracy is not high. In fact, for some telescope observation systems, there is no condition for installing a wavelength calibration system (calibration lamp), and it is impossible to use the calibration lamp spectrum for wavelength calibration. Therefore, it is particularly important to have a method for spectral wavelength calibration and flow calibration that does not depend on the calibration lamp spectrum. In addition, for space objects, short exposure...
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IPC IPC(8): G01N21/01G01N21/25
Inventor 范舟徐达维葛亮王建峰姜晓军李陶然王汇娟李明张晓明
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI