On the basis of the analyses of the existing evaluation system,the acceleration noise as a new method to evaluate the traffic safety and riding comfort is put forward.

The attitude measurement unit based on MEMS gyros use Kalman filter to integrate the information of gyros,accelerometers and magnetometers to improve its long-term precision,but the filter precision may be weakened by the disturbance acceleration generated by ship maneuver.

Signal processing technique of anti-acceleration disturb gasflow style inclination sensor;

Development and Investigation of Velocity Deception Jamming Mode;

Meanwhile, using the digital single-sideband modulator can add a Doppler shift-frequency in the output of DRFM, which will help to achieve the aim of velocity deception jamming.

The methods of noise phase modulation jamming and velocity deception jamming against the pulse Doppler radar by using the numerical control phase shifter are discussed,and corresponding simulation and analysis are given.