| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect relative position change between objects using communication of a very weak impulse sequence between objects. <P>SOLUTION: A receiver multiplies a receiving waveform and 3 kinds of template waveforms 1(t-Δ), 1(t), and 1(t+Δ) which have widths more than a width of a receiving pulse, and whose timing is shifted each half of the receiving pulse widthΔ. Integration of the multiplication of the template waveform 1(t) whose timing agrees with the receiving waveform, becomes "0", integration of the multiplication of the template waveform 1(t-Δ) whose timing is earlier by a half pulse width than the receiving waveform, becomes negative, and integration of the multiplication of the template waveform 1(t+Δ) whose timing is late by a half pulse width, becomes positive. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
