公开(公告)号：US07337079B2

公开(公告)日：2008-02-26

申请号：US10519414

申请日：2003-07-07

申请人： Jin-Bae Park ,  Yong-June Shin ,  Jong-Gwan Yook ,  Edward J. Powers ,  Eun-Seok Song ,  Joo-Won Kim ,  Tok-Son Choe ,  Seung-Hoon Sung

发明人： Jin-Bae Park ,  Yong-June Shin ,  Jong-Gwan Yook ,  Edward J. Powers ,  Eun-Seok Song ,  Joo-Won Kim ,  Tok-Son Choe ,  Seung-Hoon Sung

IPC分类号： G01R31/08

CPC分类号： G01R31/088 ,  G01R31/11

摘要： An apparatus and method for high-resolution reflectometry that operates simultaneously in both the time and frequency domains, utilizing time-frequency signal analysis and a chirp signal multiplied by a Gaussian time envelope. The Gaussian envelope provides time localization, while the chirp allows one to excite the system under test with a swept sinewave covering a frequency band of interest. High resolution in detection of the reflected signal is provided by a time-frequency cross correlation function. The high-accuracy localization of faults in a wire/cable can be achieved by measurement of time delay offset obtained from the frequency offset of the reflected signal. The apparatus enables one to execute an automated diagnostic procedure of a wire/cable under test by control of peripheral devices.

摘要翻译： 一种利用时频信号分析和啁啾信号乘以高斯时间包络的时域和频域同时工作的高分辨率反射测量装置和方法。 高斯包络提供时间定位，而啁啾允许人们用覆盖感兴趣频段的扫频正弦波激发被测系统。 通过时间 - 频率互相关函数提供检测反射信号的高分辨率。 电线/电缆故障的高精度定位可以通过测量从反射信号的频偏获得的时间延迟偏移来实现。 该装置使得能够通过外围设备的控制来执行被测电线/电缆的自动诊断程序。

公开(公告)号：US20060097730A1

公开(公告)日：2006-05-11

申请号：US10519414

申请日：2003-07-07

申请人： Jin-Bae Park ,  Yong-June Shin ,  Jong-Qwan Yook ,  Edward Powers ,  Eun-Seok Song ,  Joo-Won Kim ,  Tok-Son Choe ,  Seung-Hoon Sung

发明人： Jin-Bae Park ,  Yong-June Shin ,  Jong-Qwan Yook ,  Edward Powers ,  Eun-Seok Song ,  Joo-Won Kim ,  Tok-Son Choe ,  Seung-Hoon Sung

IPC分类号： G01R31/11

CPC分类号： G01R31/088 ,  G01R31/11

摘要： An apparatus and method for high-resolution reflectometry that operates simultaneously in both the time and frequency domains, utilizing time-frequency signal analysis and a chirp signal multiplied by a Gaussian time envelope. The Gaussian envelope provides time localization, while the chirp allows one to excite the system under test with a swept sinewave covering a frequency band of interest. High resolution in detection of the reflected signal is provided by a time-frequency cross correlation function. The high-accuracy localization of faults in a wire/cable can be achieved by measurement of time delay offset obtained from the frequency offset of the reflected signal. The apparatus enables one to execute an automated diagnostic procedure of a wire/cable under test by control of peripheral devices.

摘要翻译： 一种利用时频信号分析和啁啾信号乘以高斯时间包络的时域和频域同时工作的高分辨率反射测量装置和方法。 高斯包络提供时间定位，而啁啾允许人们用覆盖感兴趣频段的扫频正弦波激发被测系统。 通过时间 - 频率互相关函数提供检测反射信号的高分辨率。 电线/电缆故障的高精度定位可以通过测量从反射信号的频偏获得的时间延迟偏移来实现。 该装置使得能够通过外围设备的控制来执行被测电线/电缆的自动诊断程序。