A method for image simulation of space astronomical cosmic ray observation
A simulation method and astronomical observation technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the artificial randomness, difficulty in achieving simulated observation images, and distributed cosmic ray event numbers that do not provide cosmic ray energy And other issues
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[0051] The example of this implementation is to simulate a cosmic ray image when the number of pixels of a CCD is 2k×2k, the exposure time is 300 seconds, and the orbital position is 120 degrees east longitude and 10 degrees north latitude. Proceed as follows:
[0052] (1) According to the step (1) of the present invention, download the observation images of the Hubble Space Telescope wfpc2 camera near the corresponding orbit that requires simulation. Statistical analysis of cosmic ray event database: CRsRate=4.03×10 -6 event / second / square pixel, the cosmic ray energy distribution diagram is as follows Figure 5 As shown, the distribution diagram of the number of pixels occupied by cosmic rays is as follows Figure 6 shown.
[0053] (2) Execute the remaining steps of the present invention, and finally obtain the simulation result: the simulated cosmic ray observation image is as follows Figure 7 As shown (this figure is an enlarged view of some areas in the 2k×2k image). ...
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