This thesis mainly researches on the high-resolution time delay estimation and TOA location algorithms used in Orthogonal Frequency Division Multiplexing (OFDM) systems.

Application of Differential Method in Calculating the Positioning Error;

A way to seek the positioning error according to drawing software;

Phase radio nevigation system: reasonable position and orientation error;

It analyses the influences of fixing bearing angel size on orientation error,it puts forward the approach to improve grinding precision through adjusting fixing bearing angel.

This paper points out some errors of calculation formulae of workpiece orientation error when round orifices are oriented in "Jig of machine tool design"published by several universities,and some correct formulae are give

An experimental study of position errors in the feed-driving system of numerical control machine;

Application of Auto in the Position Error of Computing;

Application of tolerance zone to calculating locating error with two points method through calculation;

Computer-aided Analysis for 3D Locating Error of Fixture;

Firstly,the type of the combination of the locating edge and the type of the locating elements are listed;secondly,the locating error of the combination of the locating-edge and the locating elements is analyzed;thirdly,the quality of the locating plan is determined by selecting the error factor as evaluating index;lastly,the approach is proved by some examples.