Method, device and equipment for determining whether space target enters and exits from earth shadow area
The invention relates to a method, device and equipment for determining whether a space target enters and exits from an earth shadow area. The method comprises the steps of: acquiring operation information of a space target; according to the vector position, generating a first equivalent triangle co...
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| creator | ZHANG BANGCHAO ZHAO YUFEI WANG YUE |
| description | The invention relates to a method, device and equipment for determining whether a space target enters and exits from an earth shadow area. The method comprises the steps of: acquiring operation information of a space target; according to the vector position, generating a first equivalent triangle composed of the space target, the earth and a full-shadow cone angle origin, and generating a second equivalent triangle composed of the space target, the earth and a half-shadow cone angle origin; calculating a first interior angle of which the vertex in the first equivalent triangle is the full-shadow cone angle origin, and calculating a second interior angle of which the vertex in the second equivalent triangle is the half-shadow cone angle origin; and according to a deflection angle, the firstinterior angle, the second interior angle, the half-shadow cone angle and the full-shadow cone angle, determining the relationship between the space target and the earth shadow area. According to thetechnical scheme, the pos |
| format | Patent |
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The method comprises the steps of: acquiring operation information of a space target; according to the vector position, generating a first equivalent triangle composed of the space target, the earth and a full-shadow cone angle origin, and generating a second equivalent triangle composed of the space target, the earth and a half-shadow cone angle origin; calculating a first interior angle of which the vertex in the first equivalent triangle is the full-shadow cone angle origin, and calculating a second interior angle of which the vertex in the second equivalent triangle is the half-shadow cone angle origin; and according to a deflection angle, the firstinterior angle, the second interior angle, the half-shadow cone angle and the full-shadow cone angle, determining the relationship between the space target and the earth shadow area. 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| language | chi ; eng |
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| subjects | GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING |
| title | Method, device and equipment for determining whether space target enters and exits from earth shadow area |
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