A novel pulse-width-modulated (PWM) function is introduced for precise position
measurement in an enclosed signal field. An amplitude modulation was used to light the …

This paper deals with a method of generating signal fields and their application to position
measurement. A rotating signal field, semi-open signal field and enclosed signal field are …

A method for two-dimensional position measurement using an enclosing field has been
studied and reported. The feature of this mehtod is zooming functional measurement by …

This paper addresses the localization problem in mobile robotics and microrobotics, which is
necessary to be resolved for closed loop identification and control. An original method is …

Along this chapter, an indoor positioning system that uses wireless ZigBee technology is
presented and evaluated. In this system, mobile wireless devices measure the level of the …

This paper describes a methodology for obtaining a higher precision for a position
measurement in an enclosed signal field by introducing the concept of a zooming functional …

A method for two-dimensional position measurement using an enclosed signal field has
been studied and is reported here. This method can perform both macro-and micro …

There are many applications in which precise non-contact measuring methods of position
and attitude are needed. In this paper we propose a new two dimension position …

This report proposes a method to improve the position measurement accuracy encoded
laser beam scanning type signal field. This signal field system is effective in measurement at …

This paper describes a methodology for obtaining a higher precision for a position
measurement in an enclosed signal field by introducing the concept of a zooming functional …