of;
Aerospace;
Engineering,;
Beijing;
Institute;
of;
Technology,;
Beijing;
100081,;
China;
North;
Huifeng;
Mechatronical;
Co.;
Ltd.;
,;
Changzhi,;
Shanxi;
046012,;
China;
Institute;
of;
Electronic;
System;
Engineering,;
Beijing;
100854,;
China;