公开(公告)号：US09709681B2

公开(公告)日：2017-07-18

申请号：US13712633

申请日：2012-12-12

Applicant: Jeff Dickman ,  Mathew A. Cosgrove

Inventor： Jeff Dickman ,  Mathew A. Cosgrove

IPC: G01S19/21 ,  G01S19/36

CPC classification number: G01S19/21 ,  G01S19/215 ,  G01S19/36

Abstract: An adaptive cascaded electronic protection processing system for global navigation satellite system (GNSS) threat mitigation is provided. The system includes a precorrelation characterization component configured to provide at least one parameter characterizing a plurality of received signals. A correlator is configured to provide a plurality of correlation results, each representing one of the plurality of received signals. A spatial weight contribution component is configured to determine an optimal set of digital beam-forming weights via an optimization process according to the at least one parameter. A postcorrelation characterization component is configured to determine at least one constraint on the optimization process according to the plurality of correlation results.

公开(公告)号：US09645205B2

公开(公告)日：2017-05-09

申请号：US13711199

申请日：2012-12-11

Applicant: Michael S. Larsen ,  Robert C. Griffith ,  Michael D. Bulatowicz ,  Philip R. Clark

Inventor： Michael S. Larsen ,  Robert C. Griffith ,  Michael D. Bulatowicz ,  Philip R. Clark

IPC: G01V3/00 ,  G01R33/24 ,  G01R33/26

CPC classification number: G01R33/26 ,  G01R33/032 ,  G01R33/24 ,  G01R33/443 ,  G01R33/60

Abstract: One embodiment of the invention includes a magnetometer system. The system includes a sensor cell comprising alkali metal particles and a probe laser configured to provide a probe beam through the sensor cell. The system also includes a detection system configured to implement nuclear magnetic resonance (NMR) detection of a vector magnitude of an external magnetic field in a first of three orthogonal axes based on characteristics of the probe beam passing through the sensor cell and to implement electron paramagnetic resonance (EPR) detection of a vector magnitude of the external magnetic field in a second and a third of the three orthogonal axes based on the characteristics of the probe beam passing through the sensor cell. The system further includes a controller configured to calculate a scalar magnitude of the external magnetic field based on the magnitude of the external magnetic field in each of the three orthogonal axes.

公开(公告)号：US08994371B2

公开(公告)日：2015-03-31

申请号：US13332536

申请日：2011-12-21

Applicant: Michael S. Larsen ,  Robert Griffith ,  Michael D. Bulatowicz ,  Philip R. Clark

Inventor： Michael S. Larsen ,  Robert Griffith ,  Michael D. Bulatowicz ,  Philip R. Clark

IPC: G01V3/00 ,  G01R33/00 ,  G01R33/12

CPC classification number: G01R33/0041 ,  G01C19/62 ,  G01R33/1284 ,  G01R33/26

Abstract: One embodiment of the invention includes an atomic sensing system. The system includes an atomic sensing device configured to generate an output signal along an output axis in response to a plurality of control parameters. The system also includes a signal generator configured to apply a reference signal to a cross-axis that is approximately orthogonal to the output axis. The system also includes a phase measurement system configured to demodulate the output signal relative to the reference signal to measure a relative phase alignment between the output axis and a physical axis of the atomic sensing device based on the reference signal.

Abstract translation: 本发明的一个实施例包括原子感测系统。 该系统包括原子感测装置，其被配置为响应于多个控制参数沿着输出轴产生输出信号。 该系统还包括信号发生器，该信号发生器被配置为将参考信号施加到大致正交于输出轴的交叉轴。 该系统还包括相位测量系统，其被配置为相对于参考信号解调输出信号，以基于参考信号来测量原子感测装置的输出轴和物理轴之间的相对相位对准。

公开(公告)号：US20140343844A1

公开(公告)日：2014-11-20

申请号：US13897945

申请日：2013-05-20

Applicant: LINN ZIEN

Inventor： LINN ZIEN

IPC: G01C21/16

CPC classification number: G01C25/005 ,  G01C21/16 ,  G01C21/165 ,  G01C21/18

Abstract: In one embodiment, a system includes a motion detector to determine a motion event or a no motion event for an inertial system. The determination of the events is based upon comparing at least one motion parameter in the inertial system to at least one predetermined threshold. An azimuth update controller (AUC) periodically requests motion detection events from the motion detector and corrects heading information to a previous positional state in the inertial system in response to receipt of the no motion event.

Abstract translation: 在一个实施例中，系统包括用于确定惯性系统的运动事件或无运动事件的运动检测器。 事件的确定基于将惯性系统中的至少一个运动参数与至少一个预定阈值进行比较。 方位更新控制器（AUC）周期性地从运动检测器请求运动检测事件，并且响应于接收到无运动事件，将惯性系统中的航向信息校正到先前的位置状态。

公开(公告)号：US07869306B2

公开(公告)日：2011-01-11

申请号：US12176764

申请日：2008-07-21

Applicant: Ernest T. Bick

Inventor： Ernest T. Bick

IPC: G01S3/80

CPC classification number: G01S7/56 ,  G01S3/8006 ,  G01S3/84 ,  G01S15/42

Abstract: Systems and methods are provided for automatically detecting sonar contacts. The system comprises a data analyzer that integrates the raw data from a plurality of sonar detectors over a predetermined period of time, thereby providing integrated data characterizing a sonar image on a sonar display. A Hough transform module is configured to employ a Hough transform algorithm that transforms at least a portion of the integrated data to detect a substantially straight line in the sonar image.

Abstract translation: 提供了自动检测声纳触点的系统和方法。 该系统包括数据分析器，其在预定时间段内对来自多个声纳检测器的原始数据进行积分，从而提供表征声纳显示器上的声纳图像的综合数据。 霍夫变换模块被配置为使用霍夫变换算法，其转换所述集成数据的至少一部分以检测所述声纳图像中的基本直线。

公开(公告)号：US07698082B2

公开(公告)日：2010-04-13

申请号：US12154104

申请日：2008-05-20

Applicant: Charles A. Lee

Inventor： Charles A. Lee

IPC: G01D18/00 ,  G01C21/28

CPC classification number: G01C21/16 ,  G01C25/005 ,  G01P15/08 ,  G01P21/00

Abstract: First and second inertial instruments have parallel sense axes and produce respective first and second output signals using associated first and second scale factors. Bias errors are estimated using the change in state of sign of the first and second scale factors. A substitute scale factor is determined to be an equivalent of the second scale factor and is based on the first scale factor and a difference between the first and second scale factors. Errors in the second scale factor are calculated based on the first scale factor and the substitute scale factor where a sign of one of first and second scale factors changes going from the first time interval to the succeeding time intervals. First and second corrected output signals are generated based on the respective first and second output signals and correction of the second scale factor error.

Abstract translation: 第一和第二惯性仪器具有并行感测轴，并使用相关联的第一和第二比例因子产生相应的第一和第二输出信号。 使用第一和第二比例因子的符号状态的变化来估计偏差。 替代比例因子被确定为等于第二比例因子，并且基于第一比例因子和第一和第二比例因子之间的差。 基于第一比例因子和替代比例因子计算第二比例因子中的误差，其中第一和第二比例因子之一的符号从第一时间间隔变化到后续时间间隔。 基于相应的第一和第二输出信号产生第一和第二校正输出信号并校正第二比例因子误差。

公开(公告)号：US20100007893A1

公开(公告)日：2010-01-14

申请号：US12459906

申请日：2009-07-09

Applicant: David B. Hall

Inventor： David B. Hall

IPC: G01B9/02

CPC classification number: G01H9/004

Abstract: Two optical wavelengths are used to interrogate a fiber optic Fabry-Perot sensor having a moveable diaphragm that changes the width of a gap between two reflective surfaces. By picking the right operating point for the gap, the power output for one wavelength increases as the gap width changes and the power for the other wavelength decreases. A ratio of the difference of the two powers over the sum of the two powers is formed to generate a detected signal independent of power and phase fluctuations in a fiber between signal sources and sensor and between sensor and detector. This ratio, which is called the visibility, has a response proportional to the pressure of acoustic disturbances that move the diaphragm. The push-pull sensor can be used with both TDM and CW fan-out array architectures.

Abstract translation: 使用两个光波长来询问具有改变两个反射表面之间的间隙的宽度的可移动光阑的光纤法布里 - 珀罗传感器。 通过选择间隙的正确工作点，一个波长的功率输出随着间隙宽度的变化而增加，另一个波长的功率减小。 形成两个功率的差异在两个功率之和之间的比率，以产生独立于信号源和传感器之间以及传感器和检测器之间的光纤中的功率和相位波动的检测信号。 该比例称为可见度，具有与移动隔膜的声学干扰的压力成比例的响应。 推挽式传感器可与TDM和CW扇出阵列架构一起使用。

公开(公告)号：US07462090B1

公开(公告)日：2008-12-09

申请号：US09811095

申请日：2001-03-16

Applicant: Joseph P. Estrera ,  Adriana Giordana ,  John W. Glesener

Inventor： Joseph P. Estrera ,  Adriana Giordana ,  John W. Glesener

IPC: H01J9/02

CPC classification number: H01J31/507 ,  H01J43/08 ,  H01J43/246 ,  H01J2231/50073 ,  H01J2231/5016

Abstract: A method for detecting radiation is disclosed that includes forming a detector having a photocathode (22) with a protective layer (22c) of cesium, oxygen and fluorine; a microchannel plate (MCP) (24); and an electron receiver (26). Radiation is received at the photocathode (22). The photocathode (22) discharges electrons (34) in response to the received photons. Discharged electrons (34) are accelerated from the photocathode (22) to the input face (24a) of the microchannel plate (24). The electrons (34) are received at the input face (24a) of the microchannel plate (24). A cascade of secondary emission electrons (36) is generated in the microchannel plate (24) in response to the received electrons (34). The secondary emission electrons (36) are emitted from the output face (24b) of the microchannel plate (24). Secondary emission electrons (36) are received at the electron receiver (26). An output characteristic of the secondary emission electrons (36) is produced.

Abstract translation: 公开了一种用于检测辐射的方法，包括形成具有光电阴极（22）的检测器，其具有铯，氧和氟的保护层（22c）; 微通道板（MCP）（24）; 和电子接收器（26）。 在光电阴极（22）处接收辐射。 光电阴极（22）响应于接收到的光子而放电电子（34）。 放电的电子（34）从光电阴极（22）被加速到微通道板（24）的输入面（24a）。 电子（34）被容纳在微通道板（24）的输入面（24a）处。 响应于所接收的电子，在微通道板（24）中产生级联的二次发射电子（36）。 二次发射电子（36）从微通道板（24）的输出面（24b）发射。 二次发射电子（36）被接收在电子接收器（26）处。 产生二次发射电子（36）的输出特性。

公开(公告)号：US10288742B2

公开(公告)日：2019-05-14

申请号：US15462123

申请日：2017-03-17

Applicant: Jeff Dickman ,  Mathew A. Cosgrove

Inventor： Jeff Dickman ,  Mathew A. Cosgrove

IPC: G01S19/21 ,  G01S19/36

Abstract: An adaptive cascaded electronic protection processing system for global navigation satellite system (GNSS) threat mitigation is provided. The system includes a precorrelation characterization component configured to provide at least one parameter characterizing a plurality of received signals. A correlator is configured to provide a plurality of correlation results, each representing one of the plurality of received signals. A spatial weight contribution component is configured to determine an optimal set of digital beam-forming weights via an optimization process according to the at least one parameter. A postcorrelation characterization component is configured to determine at least one constraint on the optimization process according to the plurality of correlation results.

公开(公告)号：US09086483B2

公开(公告)日：2015-07-21

申请号：US13432558

申请日：2012-03-28

Applicant: Mostafa A. Karam ,  A. Douglas Meyer ,  Charles H. Volk ,  Raj K. Shori ,  Hector Macias

Inventor： Mostafa A. Karam ,  A. Douglas Meyer ,  Charles H. Volk ,  Raj K. Shori ,  Hector Macias

IPC: G01J5/02 ,  G01S13/88 ,  G01N21/3581 ,  G01J5/10 ,  G01K11/00 ,  G01N21/3563

CPC classification number: G01S13/887 ,  G01J5/10 ,  G01K11/006 ,  G01N21/3563 ,  G01N21/3581

Abstract: One embodiment of the invention includes a material detection system. The system includes a sensor system configured to collect radiation from a region of interest. The collected radiation can include a plurality of frequency bands. The system also includes a processing unit configured to detect a material of interest. The material of interest can be a concealed dielectric material, and the processing unit can be configured to decompose the collected radiation into natural resonance signals to analyze the natural resonance signals to detect an anomaly corresponding to the concealed dielectric material based on wave characteristics of the natural resonance signals. The processing unit could also include processing layers associated with the plurality of frequency bands for detecting and identifying the material of interest based on wave characteristics associated with each of the plurality of frequency bands of the collected radiation.

Abstract translation: 本发明的一个实施例包括材料检测系统。 该系统包括被配置为收集来自感兴趣区域的辐射的传感器系统。 收集的辐射可以包括多个频带。 该系统还包括被配置为检测感兴趣的材料的处理单元。 感兴趣的材料可以是隐藏的介电材料，并且处理单元可以被配置为将收集的辐射分解成天然共振信号，以分析天然共振信号，以基于天然的波的特征来检测对应于隐藏的介电材料的异常 共振信号。 处理单元还可以包括与多个频带相关联的处理层，用于基于与收集的辐射的多个频带中的每个频带相关联的波特性来检测和识别感兴趣的材料。