公开(公告)号：US20100090887A1

公开(公告)日：2010-04-15

申请号：US12580210

申请日：2009-10-15

申请人： Ken B. Cooper ,  Robert J. Dengler ,  Peter H. Siegel ,  Goutam Chattopadhyay ,  John S. Ward ,  Nuria Llombart Juan ,  Tomas E. Bryllert ,  Imran Mehdi ,  Jan A. Tarsala

发明人： Ken B. Cooper ,  Robert J. Dengler ,  Peter H. Siegel ,  Goutam Chattopadhyay ,  John S. Ward ,  Nuria Llombart Juan ,  Tomas E. Bryllert ,  Imran Mehdi ,  Jan A. Tarsala

IPC分类号： G01S13/90

CPC分类号： G01S13/89 ,  G01S7/024 ,  G01S7/03 ,  G01S7/35 ,  G01S13/34 ,  G01S13/87 ,  H01Q19/191 ,  H01Q19/195

摘要： A three-dimensional imaging radar operating at high frequency e.g., 670 GHz radar using low phase-noise synthesizers and a fast chirper to generate a frequency-modulated continuous-wave (FMCW) waveform, is disclosed that operates with a multiplexed beam to obtain range information simultaneously on multiple pixels of a target. A source transmit beam may be divided by a hybrid coupler into multiple transmit beams multiplexed together and directed to be reflected off a target and return as a single receive beam which is demultiplexed and processed to reveal range information of separate pixels of the target associated with each transmit beam simultaneously. The multiple transmit beams may be developed with appropriate optics to be temporally and spatially differentiated before being directed to the target. Temporal differentiation corresponds to a different intermediate frequencies separating the range information of the multiple pixels. Collinear transmit beams having differentiated polarizations may also be implemented.

摘要翻译： 公开了以高频率操作的三维成像雷达，例如使用低相位噪声合成器的670GHz雷达和用于产生调频连续波（FMCW）波形的快速啁啾声），其以多路波束操作以获得范围 信息同时在目标的多个像素上。 源发射波束可以被混合耦合器划分成多个复用在一起的多个发射波束并被引导为从目标反射并作为单个接收波束返回，该单个接收波束被解复用并被处理以显示与每个相关联的目标的单独像素的范围信息 同时发射波束。 多个发射光束可以用合适的光学器件显影，以在被引导到目标之前在时间和空间上被区分。 时间微分对应于分离多个像素的范围信息的不同中间频率。 也可以实现具有差分极化的共线发射波束。

公开(公告)号：US08144052B2

公开(公告)日：2012-03-27

申请号：US12580210

申请日：2009-10-15

申请人： Ken B. Cooper ,  Robert J. Dengler ,  Peter H. Siegel ,  Goutam Chattopadhyay ,  John S. Ward ,  Nuria Llombart Juan ,  Tomas E. Bryllert ,  Imran Mehdi ,  Jan A. Tarsala

发明人： Ken B. Cooper ,  Robert J. Dengler ,  Peter H. Siegel ,  Goutam Chattopadhyay ,  John S. Ward ,  Nuria Llombart Juan ,  Tomas E. Bryllert ,  Imran Mehdi ,  Jan A. Tarsala

IPC分类号： G01S13/89 ,  G01C3/08

CPC分类号： G01S13/89 ,  G01S7/024 ,  G01S7/03 ,  G01S7/35 ,  G01S13/34 ,  G01S13/87 ,  H01Q19/191 ,  H01Q19/195

摘要： A three-dimensional imaging radar operating at high frequency e.g., 670 GHz radar using low phase-noise synthesizers and a fast chirper to generate a frequency-modulated continuous-wave (FMCW) waveform, is disclosed that operates with a multiplexed beam to obtain range information simultaneously on multiple pixels of a target. A source transmit beam may be divided by a hybrid coupler into multiple transmit beams multiplexed together and directed to be reflected off a target and return as a single receive beam which is demultiplexed and processed to reveal range information of separate pixels of the target associated with each transmit beam simultaneously. The multiple transmit beams may be developed with appropriate optics to be temporally and spatially differentiated before being directed to the target. Temporal differentiation corresponds to a different intermediate frequencies separating the range information of the multiple pixels. Collinear transmit beams having differentiated polarizations may also be implemented.

摘要翻译： 公开了以高频率操作的三维成像雷达，例如使用低相位噪声合成器的670GHz雷达和用于产生调频连续波（FMCW）波形的快速啁啾声），其以多路波束操作以获得范围 信息同时在目标的多个像素上。 源发射波束可以被混合耦合器划分成多个复用在一起的多个发射波束并被引导为从目标反射并作为单个接收波束返回，该单个接收波束被解复用并被处理以显示与每一个相关联的目标的分离像素的范围信息 同时发射波束。 多个发射光束可以用合适的光学器件显影，以在被引导到目标之前在时间和空间上被区分。 时间微分对应于分离多个像素的范围信息的不同中间频率。 也可以实现具有差分极化的共线发射波束。