发明名称 |
Narrow band transmission link ultrasonic variable delay measurement procedure for plastic manufacture uses cross correlation of transmitted and reference path signals |
摘要 |
<p>A narrow band transmission link ultrasonic variable delay measurement procedure uses Fourier transform techniques to cross-correlate a broadband white noise input signal with known transmission function and the same signal sent in parallel through a direct connection or a filter with known time delay to give an impulse response with delay difference.</p> |
申请公布号 |
DE10332247(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
DE2003132247 |
申请日期 |
2003.07.11 |
申请人 |
IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR |
发明人 |
LANGE, THORSTEN |
分类号 |
G01N29/07;G01N29/24;G01N29/46;G01R29/00;G01S13/74;(IPC1-7):G01R29/00 |
主分类号 |
G01N29/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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