Method for processing interference in infrared earth sensor from moon through medium and high orbiting satellite

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An earth sensor and high-orbit technology, applied in instruments, measuring devices, surveying and navigation, etc., can solve problems such as the inability to interfere with the moon, and achieve the effects of easy implementation, simple design process, and expanded selection range

Active Publication Date: 2013-11-27

BEIJING INST OF CONTROL ENG

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Due to the intensive launch of navigation satellites in batches, there are more constraints on the selection of the launch window, and it is impossible to avoid moon interference during the capture of the earth as a constraint for window selection

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[0046] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0047] Such as figure 1 , 2 , Shown in 3, a kind of method that the satellite of middle and high orbit disposes of moon interference infrared earth sensor, its concrete steps are as follows:

[0048] (1) Judging whether the moon will enter the field of view of the earth sensor during the process of capturing the earth according to the following two conditions:

[0049] ①θ SM >120°;②|θ SE -θ SM |

[0050] Among them, such as figure 2 As shown, θ SE is the angle between the sun-satellite-earth, θ SMis the included angle of the sun-satellite-moon, and a is the threshold value for the moon to enter the field of view in the X direction of the earth sensor (such as: a=20.17° when the earth sensor is a synchronous orbit earth sensor, and a=20.17° when the earth sensor is a middle orbit a= 24.38°);

[0051] If the above two condi...

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