Method for multiplying integral time based on satellite dynamic time-varying whisk broom scanning
An integration time and satellite technology, which is applied in the field of satellite dynamic time-varying swing-sweep doubling integration time, can solve the problems of insufficient system energy, short imaging integration time, and large F-number of the optical system, so as to improve imaging quality and solve multi-level imaging Effects of insufficient energy or signal-to-noise ratio
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[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0018] A method for doubling the integration time of satellite dynamic time-varying swing sweep, the method comprises the following steps:
[0019] 1. Determination of integration time for satellite conventional push-broom imaging
[0020] During the conventional satellite push-broom imaging scanning process, such as figure 1 As shown, the integration time of push-broom imaging satisfies the following relationship, and the ground target is taken as a sub-satellite point as an example.
[0021]
[0022] Among them, the speed of the satellite to the ground is as follows,
[0023]
[0024] After mapping the satellite's ground flight speed to the image plane, the moving speed of the satellite image plane can be obtained as follows,
[0025]
[0026] The radius of the earth is R=6371.393×10 3 , the mass of the earth is M=5.965×10 24 ,...
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