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1. Sixthly, slightly discusses the relationship between the velocity error, wave dispersion and the migration precision.

2. In the simulation test, the position error and velocity error of maneuvering targets was seen to be reduced greatly. It indicates that the adaptive adjustment of maneuvering frequency is effective.

3. It will obtain the NMO velocity error after calculating each time window in accordance with surface consistent principle.

4. Depth error in depth migration isn't equal to velocity error, sometimes it is twice as many .

5. Second, we estimate the angular velocity error making use of accelerometer's redundance information. "

6. We can learn about that the ADCIG is more sensitive when migration velocity is greater than actual velocity from the relation between ADCIG and migration velocity error.

7. The adaptive adjustment of this kind of compensator makes it possible to reduce velocity error, and improve tracking performance. The simulation examples have shown its effectiveness.

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8. Depth error in depth migration profile isn't equal to velocity error, sometimes it is twice as many as velocity error.

9. Through the analysis and comparison of the results, the angular velocity accuracy of single-gyro system was higher than GFSINS, the angular velocity error of the GFSINS can be restrained well.

10. An example of steady flow over the hump demonstrates that the velocity error computed under hydrostatic conditions is within the scope of acceptance and no artificial flow occurs.

11. This paper deals with two problems, nonzero -offset Fresnel zone in homogeneous media, and the effect of velocity error resulted in NMO correction and stacking on vertical resolution.

12. In this paper, the simulation results show that the level damp of DINS can reduce the influence of the external velocity error, decrease damping time, and restrain the error of longitude effectively.

13. A step motor phase locking control system and it's velocity error damping method is presented in this paper. A convenient method for engineering design is also given.

14. In the improved curve fitting method, the Schuler component in velocity error was decoupled through the analysis of inertial navigation system.

15. First, according to the tracking error dynamics and kinematics described by unit quaternion error and angular velocity error, a sliding mode controller is derived based on Lyapunov theory.

16. According to the analysis of the high and low frequency parts in the equation of integral specific force, a precise velocity error correction algorithm is presented.

17. The simulations are executed using the classical and the improved SINS parameter identification fine alignment respectively with initial velocity error.

18. Simulation results show that this integrated system can get navigation attitude position with high precision, also the position error and velocity error are decreased.