Beijing Aerospace Wanda Hi-tech Ltd.

Shulun Zhao

Jizhuo Men

Yi Xu

Ruixin Feng

Xiaobin Liu

Qingbo Yu

Rong Lang

Chunxiang Yang

Junliang Shi

Yi Xin

Yuanhang Chen

A method for controlling an antenna of a mobile communication application system based on double quaternions in MEMS inertial navigation. The method comprises: introducing an antenna control quaternion based on a navigation attitude quaternion; in each interrupt cycle of a navigation computer, updating the two quaternions respectively using a carrier system measured by a gyroscope relative to a rotation vector of an ideal platform coordinate system; in each filter cycle, correcting the error of the navigation attitude quaternion respectively using a Kalman filter; according to the relationship between the attitudes determined by the two attitude quaternions, determining the angular speed in an antenna control instruction; and finally, driving a servo system to rotate at an antenna servo control angle converted by an antenna control quaternion attitude.

Method and system for controlling antenna of mobile communication application system based on double quaternions in MEMS inertial navigation

A non-orthogonal six-rod satellite communication in motion servo system and a control method. The system comprises a measurement feedback unit, a control unit, a drive unit and a servo antenna, wherein the measurement feedback unit further comprises an azimuth angle encoder, a pitch position encoder, a roll position encoder, a polarization angle encoder and a data collection card; the control unit further comprises an ACU, a strapdown inertial measurement unit and a six-axis movement control and drive module; and the drive unit further comprises a linear motor, an azimuth turbine worm, a polarization turbine worm and an electric push rod, wherein the linear motor further comprises a first linear motor and a second linear motor; and the electric push rod further comprises a first electric push rod, a second electric push rod, a third electric push rod and a fourth electric push rod.

Non-orthogonal six-rod satellite communication in motion servo system and control method

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Beijing, China

Shulun Zhao