Mounting angle calibration method for onboard large-view-field high-precision star sensor
A star sensor and calibration method technology, applied in the direction of instruments, measuring devices, etc., can solve the problems of not being able to give full play to the high-precision measurement advantages of star sensors, affecting the measurement accuracy of star sensors, and low measurement accuracy, so as to reduce complexity , Improve the accuracy, improve the effect of measurement accuracy
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[0019] combine figure 1 and figure 2 Describe this embodiment, the installation angle calibration method of shipborne large field of view high-precision star sensor, the method is realized by the following steps: the coordinate system involved in this embodiment is CIS-geocentric inertial coordinate system (J2000.0 coordinate system ), MT—instantaneous flat equatorial geocentric system, CT—instantaneous true equatorial geocentric system, ET—quasi-ground-fixed coordinate system, CTS—ground-fixed coordinate system, DP—inertial navigation horizon system, b—deck coordinate system, s— Star sensor coordinate system. figure 1 is the deck coordinate O b -X b Y b Z b Schematic diagram of the installation of the star sensor. O b X b The axis is in the deck plane, O b Y b is in the vertical deck plane, O b Z b determined by the right-hand rule. figure 2 It is a schematic diagram of the conversion from the geocentric inertial coordinate system of the star sensor to the iner...
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