公开(公告)号：US07277046B2

公开(公告)日：2007-10-02

申请号：US11177712

申请日：2005-07-08

申请人： Vinh Adams ,  Wesley Dwelly

发明人： Vinh Adams ,  Wesley Dwelly

IPC分类号： G01S13/06

CPC分类号： G01S7/35 ,  G01S3/30 ,  G01S13/003 ,  G01S13/325 ,  G01S13/42

摘要： A single transmit multi-receiver modulation radar modulates radar return signals received through an associated receive-signal path with one of a plurality of differing modulation waveforms having low-cross correlation products. Each receive-signal path may be associated with a different receive direction. The differently modulated return signals from each receive-signal path may be combined and correlations may be performed on the combined and differently modulated radar return signals using the modulation waveforms to locate a target. In some embodiments, the trajectory of the target may be extrapolated and the target's source location may be determined.

摘要翻译： 单个发射多接收机调制雷达通过具有低互相关乘积的多个不同调制波形中的一个调制通过相关联的接收信号路径接收的雷达返回信号。 每个接收信号路径可以与不同的接收方向相关联。 可以组合来自每个接收信号路径的不同调制的返回信号，并且可以使用调制波形来对组合和不同调制的雷达返回信号执行相关性，以定位目标。 在一些实施例中，可以外推目标的轨迹，并且可以确定目标的源位置。

公开(公告)号：US20060022738A1

公开(公告)日：2006-02-02

申请号：US10909569

申请日：2004-08-02

申请人： Wesley Dwelly ,  Vinh Adams

发明人： Wesley Dwelly ,  Vinh Adams

IPC分类号： H03L5/00

CPC分类号： H03G3/3068 ,  G01S7/34 ,  H03G3/3073 ,  H03M1/183

摘要： A versatile attenuator. The versatile attenuator includes a first mechanism for receiving an input signal. A second mechanism measures the input signal and provides a signal-level indication in response thereto. A third mechanism selectively attenuates the input signal when the signal-level indication surpasses a predetermined threshold and provides an attenuated signal in response thereto. In a more specific embodiment, the third mechanism further provides attenuation information. An additional mechanism then employs the attenuation information and a computer to selectively adjust an output signal of a circuit connected between the computer and the third mechanism to accommodate effects that attenuation of the input signal by the third mechanism has on the output signal.

摘要翻译： 多功能衰减器。 通用衰减器包括用于接收输入信号的第一机构。 第二机构测量输入信号并响应于此提供信号电平指示。 当信号电平指示超过预定阈值并且响应于此提供衰减信号时，第三机制选择性地衰减输入信号。 在更具体的实施例中，第三机制进一步提供衰减信息。 然后，附加机构使用衰减信息和计算机来选择性地调整连接在计算机和第三机构之间的电路的输出信号，以适应第三机制对输入信号的衰减对输出信号的影响。

公开(公告)号：US07327307B2

公开(公告)日：2008-02-05

申请号：US11176020

申请日：2005-07-07

申请人： Vinh Adams ,  Wesley Dwelly

发明人： Vinh Adams ,  Wesley Dwelly

IPC分类号： G01S7/292 ,  G01S13/00

CPC分类号： G01S13/536 ,  G01S7/35 ,  G01S7/352 ,  G01S13/325 ,  G01S13/66 ,  G01S2007/356

摘要： An adaptive waveform radar system transmits a selected waveform of a family of related waveforms and either phase shifts or bit shifts the radar return signal for correlating with the other waveforms of the family. In some embodiments, phase shifting may be performed to null an unwanted target or clutter, while bit shifting may be performed to enhance a desired target, although the scope of the invention is not limited in this respect. In some embodiments, the bits of the return signal may be either phase shifted or bit shifted to match a bit of each one of the other waveforms of the family prior to correlation.

摘要翻译： 自适应波形雷达系统传输一系列相关波形的选定波形，并且相移或比特移位雷达返回信号以与该系列的其它波形相关。 在一些实施例中，尽管本发明的范围在这方面不受限制，但是可以执行相移以消除不想要的目标或杂波，同时可以执行位移位以增强期望的目标。 在一些实施例中，返回信号的位可以是相移或位移以在相关之前匹配该系列的其它波形中的每一个的位。

公开(公告)号：US20050270219A1

公开(公告)日：2005-12-08

申请号：US10863623

申请日：2004-06-08

申请人： Wesley Dwelly ,  Vinh Adams

发明人： Wesley Dwelly ,  Vinh Adams

IPC分类号： G01S13/02 ,  G01S13/32 ,  G01S7/28

CPC分类号： G01S13/32 ,  G01S13/0209

摘要： A unique hardware architecture that combines short pulse, stepped frequency and centerline processing. The inventive architecture implements a radar system having a transmitter for transmitting short pulses, each pulse being stepped in frequency and a receiver receiving the pulses and providing an output signal in response thereto. In the illustrative embodiment, the transmitter includes a frequency source, an RF switch coupled to the source and a controller for controlling the RF switch. The receiver includes a signal processor implemented with a center line roughing filter. The signal processor has multiple channels each of which has a range gate and a digital filter. The digital filter includes a Fast Fourier Transform adapted to output a range Doppler matrix.

摘要翻译： 独特的硬件架构，结合了短脉冲，阶跃频率和中心线处理。 本发明的架构实现了一种雷达系统，其具有用于发送短脉冲的发射器，每个脉冲都是频率阶跃的，接收器接收脉冲并提供响应于此的输出信号。 在说明性实施例中，发射机包括频率源，耦合到源的RF开关和用于控制RF开关的控制器。 接收机包括用中心线粗糙滤波器实现的信号处理器。 信号处理器具有多个通道，每个通道具有范围门和数字滤波器。 数字滤波器包括适于输出范围多普勒矩阵的快速傅里叶变换。

公开(公告)号：US06967539B2

公开(公告)日：2005-11-22

申请号：US10643278

申请日：2003-08-18

申请人： Michael R. Beylor ,  Wesley H. Dwelly ,  Vinh Adams ,  Dennis C. Braunreiter ,  Harry A. Schmitt

发明人： Michael R. Beylor ,  Wesley H. Dwelly ,  Vinh Adams ,  Dennis C. Braunreiter ,  Harry A. Schmitt

IPC分类号： H03B11/10 ,  H03L7/04 ,  H05B1/00

CPC分类号： H03L7/04

摘要： An oscillator to generate a low phase-noise reference signal at an oscillation frequency includes a frequency generator to generate the reference signal responsive to a control signal, and a delay element made of a high-temperature superconductor material. The delay element time-delays the reference signal and provides a low phase-noise time-delayed reference signal when cooled to a cryogenic temperature. The oscillator includes a phase detector to generate the control signal from a phase difference between the time-delayed reference signal and a phase-shifted reference signal. The delay element may comprise a coplanar waveguide having a length between 500 and 1000 meters arranged randomly on a substrate having a diameter of between five and thirteen centimeters. The delay element may provide a delay ranging from five to fifteen microseconds. The coplanar waveguide may be comprised of Yttrium-Barium-Copper Oxide disposed on either a Lanthanum-Aluminum Oxide or a Magnesium Oxide substrate.

摘要翻译： 用于在振荡频率下产生低相位噪声参考信号的振荡器包括响应于控制信号产生参考信号的频率发生器和由高温超导体材料制成的延迟元件。 延迟元件对参考信号进行时间延迟，并在冷却至低温时提供低相位噪声时间延迟参考信号。 该振荡器包括相位检测器，用于根据延迟时间的参考信号和相移参考信号之间的相位差产生控制信号。 延迟元件可以包括具有在500和1000米之间的长度的共面波导，其随机地布置在直径在5至13厘米之间的基底上。 延迟元件可以提供从5到15微秒的延迟。 共面波导可以由设置在镧 - 氧化铝或氧化镁衬底上的钇 - 氧化铜 - 氧化铜组成。

公开(公告)号：US20050040902A1

公开(公告)日：2005-02-24

申请号：US10643278

申请日：2003-08-18

申请人： Michael Beylor ,  Wesley Dwelly ,  Vinh Adams ,  Dennis Braunreiter ,  Harry Schmitt

发明人： Michael Beylor ,  Wesley Dwelly ,  Vinh Adams ,  Dennis Braunreiter ,  Harry Schmitt

IPC分类号： H03B11/10 ,  H03L7/04 ,  H05B1/00

CPC分类号： H03L7/04

摘要： An oscillator to generate a low phase-noise reference signal at an oscillation frequency includes a frequency generator to generate the reference signal responsive to a control signal, and a delay element made of a high-temperature superconductor material. The delay element time-delays the reference signal and provides a low phase-noise time-delayed reference signal when cooled to a cryogenic temperature. The oscillator includes a phase detector to generate the control signal from a phase difference between the time-delayed reference signal and a phase-shifted reference signal. The delay element may comprise a coplanar waveguide having a length between 500 and 1000 meters arranged randomly on a substrate having a diameter of between five and thirteen centimeters. The delay element may provide a delay ranging from five to fifteen microseconds. The coplanar waveguide may be comprised of Yttrium-Barium-Copper Oxide disposed on either a Lanthanum-Aluminum Oxide or a Magnesium Oxide substrate.

公开(公告)号：US20100321229A1

公开(公告)日：2010-12-23

申请号：US11261875

申请日：2005-10-28

申请人： Wesley Dwelly ,  Vinh Adams

发明人： Wesley Dwelly ,  Vinh Adams

IPC分类号： G01S13/00

CPC分类号： G01S7/417 ,  G01S7/415 ,  G01S13/56 ,  G01S13/88

摘要： Embodiments of a biometric radar system and method for identifying a person's positional state are generally described herein. In some embodiments, the biometric radar includes phase adjusters to phase adjust a sequence of radar return signals received through two or more receive antennas to force coherency against stationary objects and remove at least some phase noise due to the stationary objects. The biometric radar also includes a signal processor to segment the phase adjusted radar return signals into a plurality of multi-resolutional Doppler components. Each multi-resolutional Doppler component may be associated with one of a plurality of biometric features. The biometric radar system also includes a neural network to combine and weight the segmented radar returns for each biometric feature to generate weighted classifications for a feature extraction process. Biometric radar system may determine whether the person is walking, talking, standing, sitting, or sleeping.

摘要翻译： 生物统计雷达系统的实施例和用于识别人的位置状态的方法在本文中一般地被描述。 在一些实施例中，生物测定雷达包括相位调节器，以相位调整通过两个或更多个接收天线接收的雷达返回信号的序列，以强制相对于固定物体的相干性并且消除由于静止物体引起的至少一些相位噪声。 生物测定雷达还包括信号处理器，用于将相位调整的雷达返回信号分段为多个多分辨多普勒分量。 每个多分辨率多普勒分量可以与多个生物特征中的一个相关联。 生物特征雷达系统还包括一个神经网络，用于组合和加权每个生物特征的分段雷达回报，以生成特征提取过程的加权分类。 生物识别雷达系统可以确定该人是否在行走，说话，站立，坐着或睡觉。

公开(公告)号：US20070171119A1

公开(公告)日：2007-07-26

申请号：US11338404

申请日：2006-01-24

申请人： Wesley Dwelly ,  Vinh Adams

发明人： Wesley Dwelly ,  Vinh Adams

IPC分类号： G01S13/62

CPC分类号： G01S13/56 ,  G01S13/18 ,  G01S13/522

摘要： A pulsed radar system uses phase noise compensation to reduce phase noise due to drift of the reference oscillator to enable detection of micro movements and particularly human motion such as walking, breathing or heartbeat. The noise level due to A/D sampling must be sufficiently low for the phase noise compensation to be effective. As this is currently beyond state-of-the-art for high bandwidth A/D converters used in traditional receiver design, the receiver is suitably reconfigured to use analog range gates and narrowband A/D sampling having sufficiently low noise level. As technology continues to improve, the phase compensation techniques may be directly applicable to the high bandwidth A/D samples in traditional receiver designs. Whether phase compensation is applied to traditional receiver designs or a receiver configured with analog range gates, the steps are essentially the same: data is processed to position a reference range bin (either an analog range gate or a particular time sample) on a stationary reference and the phase variation of that reference range bin is used to compensate the phase of target data in range bins (either an ensemble of range gates or other time samples) near the stationary reference. This effectively moves the radar system and particularly the reference oscillator to the stationary reference thereby greatly reducing oscillator drift and phase noise and decoupling the stand-off range from the level of phase noise.

摘要翻译： 脉冲雷达系统使用相位噪声补偿来减少由于参考振荡器的漂移引起的相位噪声，以便能够检测微动，特别是人的运动，例如步行，呼吸或心跳。 由于A / D采样引起的噪声电平必须足够低以使相位噪声补偿有效。 由于目前在传统接收机设计中使用的高带宽A / D转换器目前已经超出了现有技术水平，接收机被适当地重新配置为使用具有足够低噪声电平的模拟量程门限和窄带A / D采样。 随着技术的不断改进，相位补偿技术可以直接适用于传统接收机设计中的高带宽A / D采样。 相位补偿是应用于传统接收机设计还是配置有模拟量程门限的接收机，步骤基本相同：将数据处理为将参考范围存储区（模拟量程门或特定时间采样）定位在固定参考点 并且该参考范围bin的相位变化用于补偿在固定基准附近的范围仓（或范围门或其他时间样本的集合）中的目标数据的相位。 这有效地将雷达系统，特别是参考振荡器移动到固定基准，从而大大降低了振荡器漂移和相位噪声，并将离散范围与相位噪声电平分离。

公开(公告)号：US07236124B2

公开(公告)日：2007-06-26

申请号：US11143045

申请日：2005-06-02

申请人： Vinh Adams ,  Wesley Dwelly ,  Robert J. Adams

发明人： Vinh Adams ,  Wesley Dwelly ,  Robert J. Adams

IPC分类号： G01S13/52 ,  G01S13/00

CPC分类号： G01S7/4008 ,  G01S7/282 ,  G01S7/414

摘要： A radar system transmits an environment-sensing pulse and processing circuitry time-reverses an order of radar return samples and generates a convolution matrix from the radar return samples resulting from a transmission of the environment-sensing pulse. The processing circuitry may also generate a plurality of return energy-ranked vectors from a decomposition of the convolution matrix. The processing circuitry may select one of the return energy-ranked vectors for generation of a clutter-orthogonal transmit waveform. In some embodiments, the processing circuitry may select a clutter-orthogonal vector from the plurality of return energy-ranked vectors and may quantize the clutter-orthogonal vector for application to the phase modulator for generation of the clutter-orthogonal transmit waveform. The radar system may perform multiple correlations on sampled radar returns from the clutter orthogonal transmit waveform using a family of pseudo-orthogonal waveforms to detect a slow-moving target.

摘要翻译： 雷达系统传输环境感测脉冲，处理电路对雷达返回样本的顺序进行时间反演，并从环境感测脉冲传输得到的雷达返回样本产生卷积矩阵。 处理电路还可以从卷积矩阵的分解生成多个返回能量排列向量。 处理电路可以选择返回能量排列向量中的一个，以产生杂波正交发射波形。 在一些实施例中，处理电路可以从多个返回能量排列向量中选择杂波正交矢量，并且可以量化杂波正交矢量以供应用于相位调制器以产生杂波正交发射波形。 雷达系统可以使用一系列伪正交波形从杂波正交发射波形对采样的雷达返回执行多个相关性，以检测慢移目标。

公开(公告)号：US20070018884A1

公开(公告)日：2007-01-25

申请号：US11177712

申请日：2005-07-08

申请人： Vinh Adams ,  Wesley Dwelly

发明人： Vinh Adams ,  Wesley Dwelly

IPC分类号： G01S13/06

CPC分类号： G01S7/35 ,  G01S3/30 ,  G01S13/003 ,  G01S13/325 ,  G01S13/42

摘要： A single transmit multi-receiver modulation radar modulates radar return signals received through an associated receive-signal path with one of a plurality of differing modulation waveforms having low-cross correlation products. Each receive-signal path may be associated with a different receive direction. The differently modulated return signals from each receive-signal path may be combined and correlations may be performed on the combined and differently modulated radar return signals using the modulation waveforms to locate a target. In some embodiments, the trajectory of the target may be extrapolated and the target's source location may be determined.