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- W1633657378 abstract "Optical sensors, in particular Charge Coupled Device (CCD) arrays, will be used on Space Station to track stars in order to provide inertial attitude reference. Algorithms are presented to derive attitude rate from the optical sensors. The first algorithm is a recursive differentiator. A variance reduction factor (VRF) of 0.0228 was achieved with a rise time of 10 samples. A VRF of 0.2522 gives a rise time of 4 samples. The second algorithm is based on the direct manipulation of the pixel intensity outputs of the sensor. In 1-dimensional simulations, the derived rate was with 0.07 percent of the actual rate in the presence of additive Gaussian noise with a signal to noise ratio of 60 dB." @default.
- W1633657378 created "2016-06-24" @default.
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- W1633657378 date "1989-12-01" @default.
- W1633657378 modified "2023-09-27" @default.
- W1633657378 title "Optical rate sensor algorithms" @default.
- W1633657378 hasPublicationYear "1989" @default.
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