公开(公告)号：US4265122A

公开(公告)日：1981-05-05

申请号：US32176

申请日：1979-04-23

申请人： Billy D. Cook ,  Eduardo Cavanagh

发明人： Billy D. Cook ,  Eduardo Cavanagh

IPC分类号： G01N29/24 ,  G01S7/52 ,  G01N29/04 ,  G02B5/14

CPC分类号： G01N29/2418 ,  G01S7/52036 ,  G01N2291/02491

摘要： Disclosed is an apparatus and method for nondestructive testing of structures where the apparatus includes a transducer for generating an ultrasonic acoustic signal, a nonlinear medium for parametrically generating a special, ramp, waveform, and an acousto-optic broadband receiver for detecting a reflected signal from the test structure. A homodyne interferometer is provided to measure the change of refractive index of the acousto-optic receiver, and generates an electrical signal representative of the reflected acoustic signal. Signature analysis techniques are utilized to evaluate the reflected waveform to determine the characteristics of the structural defects.

摘要翻译： 公开了一种用于非破坏性测试结构的装置和方法，其中该装置包括用于产生超声波声信号的换能器，用于参数地产生特殊的斜坡波形和声光宽带接收器的非线性介质，用于检测来自 测试结构。 提供零差干涉仪来测量声光接收机的折射率变化，并产生代表反射声信号的电信号。 使用签名分析技术来评估反射波形以确定结构缺陷的特征。

公开(公告)号：US08126044B2

公开(公告)日：2012-02-28

申请号：US11586383

申请日：2006-10-25

申请人： Eduardo Cavanagh

发明人： Eduardo Cavanagh

IPC分类号： H03H7/30 ,  H03K5/159

CPC分类号： H04H20/74 ,  H04B17/391 ,  H04L25/03343 ,  H04L2025/03445 ,  H04L2025/03522

摘要： A system and method for configuring an equalizer 48 for a transmission link includes a computer 82 that forms a mathematical model of an analog equalizer having a plurality of mathematical model filter stages. The computer 82 determines a desired response and tunes each of the plurality of mathematical model filter stages toward the desired response to form a plurality of model filter parameters to compensate for distortions in the transmission link. The equalizer 48 is coupled to the RF chain. The plurality of filter stages is tuned in response to the filter parameters. The RF signals are broadcast in response to analog equalizer.

摘要翻译： 用于配置传输链路的均衡器48的系统和方法包括形成具有多个数学模型滤波器级的模拟均衡器的数学模型的计算机82。 计算机82确定期望的响应并且将多个数学模型滤波器级中的每一个调谐到期望的响应以形成多个模型滤波器参数以补偿传输链路中的失真。 均衡器48耦合到RF链。 响应于过滤器参数来调整多个过滤器级。 响应于模拟均衡器广播RF信号。

公开(公告)号：US07925231B2

公开(公告)日：2011-04-12

申请号：US11586414

申请日：2006-10-25

申请人： Eduardo Cavanagh

发明人： Eduardo Cavanagh

IPC分类号： H04B1/18

CPC分类号： H04H20/12 ,  H04H20/74

摘要： A system 10 that is used for analyzing a broadcast system includes a receiving device 60 that generates a baseband demodulated RF signal and digitizes the RF signal to form a digitized signal. A data capture module such as the IQ monitor board 90 is coupled to the receiving device 60 for acquiring samples of the digitized signal. A computer is communication with the data capture module. The computer processes the samples of the digitized signal to obtain a broadcast system response and an inverse broadcast system response. The display generates a display corresponding to the broadcast system response and the inverse system response.

摘要翻译： 用于分析广播系统的系统10包括产生基带解调的RF信号并数字化RF信号以形成数字化信号的接收装置60。 诸如IQ监视板90的数据采集模块耦合到接收装置60，用于采集数字化信号的采样。 计算机与数据采集模块进行通信。 计算机处理数字化信号的样本以获得广播系统响应和反向广播系统响应。 该显示器产生对应于广播系统响应和反向系统响应的显示。

公开(公告)号：US20080102751A1

公开(公告)日：2008-05-01

申请号：US11586383

申请日：2006-10-25

申请人： Eduardo Cavanagh

发明人： Eduardo Cavanagh

IPC分类号： H04H1/00 ,  H04B7/185 ,  H04H20/74

CPC分类号： H04H20/74 ,  H04B17/391 ,  H04L25/03343 ,  H04L2025/03445 ,  H04L2025/03522

摘要： A system and method for configuring an equalizer 48 for a transmission link includes a computer 82 that forms a mathematical model of an analog equalizer having a plurality of mathematical model filter stages. The computer 82 determines a desired response and tunes each of the plurality of mathematical model filter stages toward the desired response to form a plurality of model filter parameters to compensate for distortions in the transmission link. The equalizer 48 is coupled to the RF chain. The plurality of filter stages is tuned in response to the filter parameters. The RF signals are broadcast in response to analog equalizer.

摘要翻译： 用于配置传输链路的均衡器48的系统和方法包括形成具有多个数学模型滤波器级的模拟均衡器的数学模型的计算机82。 计算机82确定期望的响应并且将多个数学模型滤波器级中的每一个调谐到期望的响应以形成多个模型滤波器参数以补偿传输链路中的失真。 均衡器48耦合到RF链。 响应于过滤器参数来调整多个过滤器级。 响应于模拟均衡器广播RF信号。

公开(公告)号：US20080102745A1

公开(公告)日：2008-05-01

申请号：US11586414

申请日：2006-10-25

申请人： Eduardo Cavanagh

发明人： Eduardo Cavanagh

IPC分类号： H04H1/00 ,  H04H20/74

CPC分类号： H04H20/12 ,  H04H20/74

摘要： A system 10 that is used for analyzing a broadcast system includes a receiving device 60 that generates a baseband demodulated RF signal and digitizes the RF signal to form a digitized signal. A data capture module such as the IQ monitor board 90 is coupled to the receiving device 60 for acquiring samples of the digitized signal. A computer is communication with the data capture module. The computer processes the samples of the digitized signal to obtain a broadcast system response and an inverse broadcast system response. The display generates a display corresponding to the broadcast system response and the inverse system response.

摘要翻译： 用于分析广播系统的系统10包括产生基带解调的RF信号并数字化RF信号以形成数字化信号的接收装置60。 诸如IQ监视板90的数据采集模块耦合到接收装置60，用于采集数字化信号的采样。 计算机与数据采集模块进行通信。 计算机处理数字化信号的样本以获得广播系统响应和反向广播系统响应。 该显示器产生对应于广播系统响应和反向系统响应的显示。