1.The airplane has a sophisticated electronic guidance system.
这架飞机有一套尖端电子导航系统。
2.Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.
3.Scheme is proposed of using a computer on sline and digital fil-tering technique to perform digital filtering and lane identification of the phase signals of a port radio navigation system .