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公开(公告)号：US08077072B2
公开(公告)日：2011-12-13
申请号：US12649268
申请日：2009-12-29
申请人： Farrokh Mohamadi , Soumya K. Nag
发明人： Farrokh Mohamadi , Soumya K. Nag
IPC分类号： G01S13/00
CPC分类号： G01S13/89 , G01S13/888
摘要： A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interior structural features based on the markers. A method includes: scanning a building structure from the exterior of the structure using a radar unit to provide raw data; processing the raw data into markers of interior locations of the structure; estimating locations of interior structural features of the structure from the markers; and displaying an image of the interior structural features.
摘要翻译： 一种系统包括被配置为从扫描结构的外部提供原始数据的雷达单元; 以及信号处理和成像模块，被配置为：将所述原始数据处理成所述结构的内部位置的标记; 并基于标记显示内部结构特征的图像。 一种方法包括：使用雷达单元从结构的外部扫描建筑结构以提供原始数据; 将原始数据处理为结构内部位置的标记; 从标记估计结构的内部结构特征的位置; 并显示内部结构特征的图像。
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公开(公告)号：US08441393B2
公开(公告)日：2013-05-14
申请号：US12796635
申请日：2010-06-08
申请人： Paul Strauch , Soumya K. Nag , Farrokh Mohamadi
发明人： Paul Strauch , Soumya K. Nag , Farrokh Mohamadi
CPC分类号： G01S7/006 , G01S13/0209 , G01S13/288 , G01S13/888 , H04L1/0041 , H04L27/2647
摘要： An orthogonal frequency division multiplexing (OFDM) communication system is adapted for radar ranging and imaging. A radar system includes an orthogonal frequency division multiplexing (OFDM) radio communications transmitter configured to transmit information bits using one or more payload symbols in a transmitted signal; and a receiver configured to: construct the payload symbols from the information bits provided by the transmitter; receive the payload symbols in the transmitted signal reflected from a target; apply a matched filter to the received payload symbols using the constructed payload symbols as a template; and process a magnitude response at an output of the matched filter for estimating location and imaging of the target.
摘要翻译： 正交频分复用（OFDM）通信系统适用于雷达测距和成像。 雷达系统包括正交频分复用（OFDM）无线电通信发射机，其被配置为使用发送信号中的一个或多个有效载荷符号来发送信息比特; 以及接收机，被配置为：从由所述发射机提供的信息比特构造所述有效载荷符号; 从目标反射的发射信号中接收有效载荷符号; 使用构造的有效载荷符号作为模板将匹配滤波器应用于所接收的有效载荷符号; 并且在匹配滤波器的输出端处理幅度响应，以估计目标的位置和成像。
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公开(公告)号：US20110193739A1
公开(公告)日：2011-08-11
申请号：US12796635
申请日：2010-06-08
申请人： Paul Strauch , Soumya K. Nag , Farrokh Mohamadi
发明人： Paul Strauch , Soumya K. Nag , Farrokh Mohamadi
CPC分类号： G01S7/006 , G01S13/0209 , G01S13/288 , G01S13/888 , H04L1/0041 , H04L27/2647
摘要： An orthogonal frequency division multiplexing (OFDM) communication system is adapted for radar ranging and imaging. A radar system includes an orthogonal frequency division multiplexing (OFDM) radio communications transmitter configured to transmit information bits using one or more payload symbols in a transmitted signal; and a receiver configured to: construct the payload symbols from the information bits provided by the transmitter; receive the payload symbols in the transmitted signal reflected from a target; apply a matched filter to the received payload symbols using the constructed payload symbols as a template; and process a magnitude response at an output of the matched filter for estimating location and imaging of the target.
摘要翻译： 正交频分复用（OFDM）通信系统适用于雷达测距和成像。 雷达系统包括正交频分复用（OFDM）无线电通信发射机，其被配置为使用发送信号中的一个或多个有效载荷符号来发送信息比特; 以及接收机，被配置为：从由所述发射机提供的信息比特构造所述有效载荷符号; 从目标反射的发射信号中接收有效载荷符号; 使用构造的有效载荷符号作为模板将匹配滤波器应用于所接收的有效载荷符号; 并且在匹配滤波器的输出端处理幅度响应，以估计目标的位置和成像。
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公开(公告)号：US20110050479A1
公开(公告)日：2011-03-03
申请号：US12649268
申请日：2009-12-29
申请人： Farrokh Mohamadi , Soumya K. Nag
发明人： Farrokh Mohamadi , Soumya K. Nag
IPC分类号： G01S13/00
CPC分类号： G01S13/89 , G01S13/888
摘要： A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interior structural features based on the markers. A method includes: scanning a building structure from the exterior of the structure using a radar unit to provide raw data; processing the raw data into markers of interior locations of the structure; estimating locations of interior structural features of the structure from the markers; and displaying an image of the interior structural features.
摘要翻译： 一种系统包括被配置为从扫描结构的外部提供原始数据的雷达单元; 以及信号处理和成像模块，被配置为：将所述原始数据处理成所述结构的内部位置的标记; 并基于标记显示内部结构特征的图像。 一种方法包括：使用雷达单元从结构的外部扫描建筑结构以提供原始数据; 将原始数据处理为结构内部位置的标记; 从标记估计结构的内部结构特征的位置; 并显示内部结构特征的图像。
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公开(公告)号：US06922177B2
公开(公告)日：2005-07-26
申请号：US10083689
申请日：2002-02-26
申请人： Mark A. Barnes , Charles G. Gilbert , Herbert U. Fluhler , Hans G. Schantz , Soumya K. Nag , David M. Dickson
发明人： Mark A. Barnes , Charles G. Gilbert , Herbert U. Fluhler , Hans G. Schantz , Soumya K. Nag , David M. Dickson
CPC分类号： G01S13/888 , G01S13/0209 , H01Q1/38 , H01Q1/525 , H01Q21/08
摘要： An antenna array comprising a ground plane and a plurality of elements mounted thereon, said elements being capable of emitting and receiving ultra wideband emissions. Elements are arrayed on the ground plane in two parallel rows, a transmitting row, and a receiving row, such that a given element in the receiving row is aligned in at least one direction with a corresponding element in the transmitting row. Additionally, the elements are configured on the ground plane to elicit a symmetrical product response in the azimuthal plane, and to produce horizontally polarized signals. An alternative embodiment places the elements with unique inter-element spacing within the rows. An embodiment comprises a fence structure between rows. A method for use comprises the step of transmitting a signal via an element in the transmitting row and receiving said signal through an element in the receiving row, not aligned with the transmitting element.
摘要翻译： 一种包括接地平面和安装在其上的多个元件的天线阵列，所述元件能够发射和接收超宽带发射。 元件在接地平面上排列成两行平行的行，即发送行和接收行，使得接收行中的给定元素在至少一个方向上与发送行中的相应元素对齐。 另外，元件被配置在接地平面上以在方位平面中引出对称的产品响应，并产生水平偏振信号。 替代实施例将元件在行内放置具有唯一的元件间间隔。 实施例包括行之间的围栏结构。 一种使用方法包括通过发送行中的元件发送信号的步骤，并且通过接收行中不与发送元件对准的元件接收所述信号。
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公开(公告)号：US06667724B2
公开(公告)日：2003-12-23
申请号：US09998480
申请日：2001-11-30
申请人： Mark A. Barnes , Charles G. Gilbert , Herbert U. Fluhler , Hans G. Schantz , Soumya K. Nag , David M. Dickson
发明人： Mark A. Barnes , Charles G. Gilbert , Herbert U. Fluhler , Hans G. Schantz , Soumya K. Nag , David M. Dickson
IPC分类号： G01S1304
CPC分类号： G01S13/888 , G01S13/0209 , H01Q1/38 , H01Q1/525 , H01Q21/08
摘要： An antenna array comprising a ground plane and a plurality of elements mounted thereon, said elements being capable of emitting and receiving ultra wideband emissions. Elements are arrayed on the ground plane in two parallel rows, a transmitting row, and a receiving row, such that a given element in the receiving row is aligned in at least one direction with a corresponding element in the transmitting row. Additionally, the elements are configured on the ground plane to elicit a symmetrical product response in the azimuthal plane, and to produce horizontally polarized signals. An alternative embodiment places the elements with unique inter-element spacing within the rows. An embodiment comprises a fence structure between rows. A method for use comprises the step of transmitting a signal via an element in the transmitting row and receiving said signal through an element in the receiving row, not aligned with the transmitting element.
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公开(公告)号：US06552677B2
公开(公告)日：2003-04-22
申请号：US10083191
申请日：2002-02-26
IPC分类号： G01S1300
CPC分类号： G01S7/292 , G01S13/0209
摘要： A method of detecting objects reflecting impulse waveforms of generating a detection envelope by receiving a reflected waveform, delaying said waveform by a peak-to-zero delay (PZD) interval. The PZD interval is the time between a maximum energy displacement in the impulse waveform and an adjacent zero crossing. The reflected waveform and its delayed version are squared and then summed to create the envelope. If the envelope is to be defined in terms of voltage, the root of the sum of the squares may be found. Also a method for generating an image using the PZD interval in back-projection techniques is described wherein a sampling point is chosen on each of a plurality of reflected waveforms. The values of the samples are summed and the waveforms are delayed by the PZD interval and the values of the sampling points are again summed. The two sums are squared and added together to generate an image envelope.
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