公开(公告)号：US11142351B2

公开(公告)日：2021-10-12

申请号：US16457188

申请日：2019-06-28

Applicant: National Applied Research Laboratories

Inventor： Ying-Wen Jan ,  Ming-Yu Yeh ,  Wei-Ting Wei ,  Yeong-Wei Wu

IPC: B64G1/66 ,  H03H17/02 ,  G01C21/02 ,  G01P15/18

Abstract: Provided are an earth satellite attitude data fusion system and method, applicable to an earth satellite space environment to estimate attitude data of a satellite. When the earth satellite attitude data fusion system of the present invention is used to perform the earth satellite attitude data fusion method, the first step is to perform a body rates/quaternion attitude data processing operation. Then, the next step is to perform an attitude/rates data fusion processing operation, wherein an attitude data fusion algorithm module receives a first IAE result data from a first EKF, and a second IAE result data from a second EKF, and performs an attitude/rates data fusion algorithm in a subsystem level to evaluate an attitude estimation IAE performance based on the first IAE result data, and the second IAE result data.

公开(公告)号：US20210180952A1

公开(公告)日：2021-06-17

申请号：US16839811

申请日：2020-04-03

Applicant: National Applied Research Laboratories

Inventor： Yung-Fu Tsai ,  Yeong-Wei Wu ,  Min-Yu Hsieh ,  Kuo-Liang Wu ,  Ying-Wen Jan ,  Chen-Tsung Lin

IPC: G01C19/5712 ,  G01C19/5776 ,  G01C19/5783 ,  B81B7/02 ,  B81B7/00

Abstract: A microelectromechanical gyroscope system is provided. The system includes a first substrate, a second substrate, and a third substrate. The substrates respectively have a first fixing, a second fixing, and a third fixing surfaces. The system further includes a first sensing, a second sensing and a third sensing module boards respectively fixed to the fixing surfaces. Each sensing module board has several microelectromechanical gyroscopes. A signal processing control board is electrically connected to the first sensing module board, the second sensing module board, and the third sensing module board. Wherein the first substrate, the second substrate, and the third substrate are perpendicular to each other. With the above structure, on each system coordinate axis of the microelectromechanical gyroscope system, at least one gyroscope is aligned with it for data acquisition and measurement. Accordingly, the measurement accuracy of the system is improved.