Radiation calibration method and device
A radiometric calibration and calibration technology, applied in the field of remote sensing, can solve the problem of low calibration accuracy and achieve the effect of improving calibration accuracy
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specific Embodiment 1
[0037] Such as figure 1 As shown, the embodiment of the present invention provides a radiation calibration method, including:
[0038] Step S101, obtaining the radiation parameter value R and the measurement value M of the instrument to be calibrated;
[0039] Step S102, establishing a fitting relationship between the radiation parameter value R and the measurement value M of the instrument to be calibrated, and obtaining the calibration coefficient K of the instrument to be calibrated.
[0040]The embodiment of the present invention provides a radiation calibration method, which acquires the radiation parameter value and the measurement value of the instrument to be calibrated and establishes a fitting relationship between the two to obtain the calibration coefficient of the instrument to be calibrated. The advantage of this is that, under the premise of as many sampling points as possible, a higher positioning accuracy can be achieved.
specific Embodiment 2
[0042] Such as figure 2 As shown, the embodiment of the present invention provides a radiation calibration method, including:
[0043] Step S201, obtaining the radiation parameter value R of A A and the measured value M of the instrument to be calibrated A ;
[0044] Step S202, establishing the radiation parameter value R of A ground A and the measured value M of the instrument to be calibrated A The P-time fitting relationship between them, P is a natural number, P≥2, to obtain the calibration coefficient of A of the instrument to be calibrated, use the matrix K A said, K A =[k P k P- 1 ...k i ...k 2 k 1A k 0A ],k i (i is a natural number, 2≤i≤P) is the i-time item calibration coefficient, k 1A is the first-order calibration coefficient of A, k 0A is the zero-order calibration coefficient of A;
[0045] Step S203, obtaining the radiation parameter value R of B site B and the measured value M of the instrument to be calibrated B ;
[0046] Step S204, accord...
specific Embodiment 3
[0058] Such as image 3 As shown, the embodiment of the present invention provides a radiation calibration device, including:
[0059] The first acquisition module 301 is used to acquire the radiation parameter value R of A ground A and the measured value M of the instrument to be calibrated A ;
[0060] The first data processing module 302 is used to establish the radiation parameter value R of A ground A and the measured value M of the instrument to be calibrated A The P-time fitting relationship between them, P is a natural number, P≥2, to obtain the calibration coefficient of A of the instrument to be calibrated, use the matrix K A said, K A =[k P k P-1 ...k i ...k 2 k 1A k 0A ],k i (i is a natural number, 2≤i≤P) is the i-time item calibration coefficient, k 1A is the first-order calibration coefficient of A, k 0A is the zero-order calibration coefficient of A;
[0061] The second acquisition module 303 is used to acquire the radiation parameter value R of t...
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