Furthermore, it also discusses the influence of mismatching angle on phase mismatching coefficient at various output wavelengths and in the same tuning precision the influence of the crystal length on efficiency.

A conclusion can be drawn that the angle mismatch is the most important factor effecting the expansibility of optical switch array.

Effects of heading on phase difference rate of change location;

To compensate the magnetic deviation produced by the soft iron and hard iron distortion in attitude and heading reference system(AHRS), a recursive least square (RLS) algorithm using continuous magnet field information was developed.

In order to overcome the error of heading increment with the time,which can influence the accuracy of the localization and pose of lu- nar rover,a theory used for the precise heading detection and error correcting based on star sensor and ephemeris data is presented.

The design of automatic test system of wireless electronic compass based on for emulator of course angle is introduced in this paper.

A Method for Accurate Heading Angle Calculation in Metric Data Processing;

The 3-axis digital compass can output the heading angle,pitching angle and roll angle of the current load-bearing object.