发明名称 |
Method and device for delay-sensitive measurement of a signal |
摘要 |
A method and device for detecting the amplitude and/or the phase position of an intensity-modulated signal, including the following: detecting an instant value of the intensity-modulated signal and of a first reference signal with a frequency differing from the intensity-modulated signal; mixing the first reference signal with the intensity-modulated signal to obtain a mixed-signal value; detecting an instant value of a second reference signal with a frequency differing from both the previously detected signals and of a third reference signal of the same frequency but phase-shifted from the second reference signal; mixing the mixed-signal value with the second reference signal to yield a first measurement value; mixing the mixed-signal value with the third reference signal to yield a second measurement signal value; and calculating the amplitude and/or phase position from the two measurement signal values.
|
申请公布号 |
US7555062(B2) |
申请公布日期 |
2009.06.30 |
申请号 |
US20050220122 |
申请日期 |
2005.09.06 |
申请人 |
PMD TECHNOLOGIES GMBH |
发明人 |
GOLLEWSKI TORSTEN;LANGE ROBERT;RINGBECK THORSTEN;HEBETA HOLGER;BUXBAUM BERND |
分类号 |
H03K9/00;H04B1/38;H04L27/00 |
主分类号 |
H03K9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|