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- W2365199013 abstract "The error of pico-satellite attitude angle measurement consists of sun vector measurement error and sun vector calculation error,which are analyzed and calculated respectively.The pico-satellite is characterized by small volume,light weight and low power consumption.Based on these characteristics,a designed micro sun sensor is used to measure the sun vector which is then compared with the sun vector calculated from the orbit propagator.In such a way the pico-satellite attitude angle can be obtained.It is determined that the sun vector measurement error is about 5.74° which is caused by many factors,such as the non-ideal cosine curve between incident angle and photocurrent,the photocurrent noise,the nonlinearity of the analog circuit and the A/D converter,and the temperature inaccuracy etc.The limited resource of pico-satellite constrains itself to adopt simple Kepler orbit propagator only to calculate the sun vector and its error which is about 0.1°.Thus the total attitude angle error is about 5.84°." @default.
- W2365199013 created "2016-06-24" @default.
- W2365199013 creator A5052086909 @default.
- W2365199013 date "2008-01-01" @default.
- W2365199013 modified "2023-09-25" @default.
- W2365199013 title "Error analysis of pico-satellite attitude angle measurement based on sun vector" @default.
- W2365199013 hasPublicationYear "2008" @default.
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