公开(公告)号：US08659989B2

公开(公告)日：2014-02-25

申请号：US13022078

申请日：2011-02-07

Applicant: Matthew J. Sherman ,  Gary R. Lomp ,  Andrew M. Comba ,  David A. Haessig, Jr. ,  Joel D. Reiss

Inventor： Matthew J. Sherman ,  Gary R. Lomp ,  Andrew M. Comba ,  David A. Haessig, Jr. ,  Joel D. Reiss

IPC: H04J11/00 ,  H04L12/26

CPC classification number: H04L43/0858 ,  G01S5/0221

Abstract: A system and method for calculating a time of arrival (TOA) of an electromagnetic signal is presented. A method receives a fast Fourier transform (FFT) signal that is a FFT of an original electromagnetic signal containing symbol data. The FFT signal is either multiplied or divided with a value to remove the symbol data. Removing the symbol data generates a perturbed data values representing perturbed signal with a perturbed covariance. The method calculates a perturbed covariance of the perturbed data values. After the perturbed covariance is calculated, the method at least partially corrects the perturbed covariance to produce a corrected covariance. The TOA of the original electromagnetic signal is calculated based, at least in part, on the perturbed covariance.

Abstract translation: 提出了一种用于计算电磁信号到达时间（TOA）的系统和方法。 一种方法接收作为包含符号数据的原始电磁信号的FFT的快速傅里叶变换（FFT）信号。 FFT信号被乘以或除以一个值去除符号数据。 去除符号数据会产生扰动的数据值，表示扰动信号与扰动协方差。 该方法计算扰动数据值的扰动协方差。 在计算了扰动协方差之后，该方法至少部分地校正扰动协方差以产生校正的协方差。 至少部分地基于扰动协方差来计算原始电磁信号的TOA。

公开(公告)号：US20110115673A1

公开(公告)日：2011-05-19

申请号：US12617932

申请日：2009-11-13

Applicant: Raymond J. Lackey

Inventor： Raymond J. Lackey

IPC: H01Q3/00 ,  H01Q21/06 ,  H01Q13/00

CPC classification number: H01Q25/02 ,  H01Q7/06

Abstract: A system and method for communication that could be used in an identification friend or foe system. The method comprises generating a first message by a processor and controlling a beam steerer to deflect transmitted waves toward a first angle. The method further comprises transmitting the first message through an antenna in communication with the beam steerer toward the spatial angle. The method further comprises controlling the beam steerer to deflect waves received from the spatial angle. The method further comprises receiving a responsive wave at the antenna through the beam steerer at the spatial angle, the responsive wave including a second message responsive to the first message.

Abstract translation: 可用于识别朋友或敌方系统的通信系统和方法。 该方法包括由处理器产生第一消息，并且控制光束转向器将透射波偏向第一角度。 该方法还包括通过与射束转向器朝向空间角度通信的天线发送第一消息。 该方法还包括控制光束转向器以偏转从空间角度接收的波。 该方法还包括：以空间角度通过射束转向器在天线处接收响应波，响应波包括响应于第一消息的第二消息。

公开(公告)号：US07623075B2

公开(公告)日：2009-11-24

申请号：US12152295

申请日：2008-05-14

Applicant: John T. Apostolos

Inventor： John T. Apostolos

IPC: H01Q1/38 ,  H01Q21/26

CPC classification number: H01Q1/3275 ,  H01Q9/285 ,  H01Q21/20 ,  H01Q21/205 ,  H01Q21/24

Abstract: A miniature volumetric spherical geometry with multiple symmetric feeds is spaced from the surface of the vehicle or platform, with the antenna exhibiting both circular polarization that is orientation-independent or angle of arrival independent, while at the same time covering a broad band of frequencies from 243-318 MHz in one embodiment.

Abstract translation: 具有多个对称进给的微型体积球形几何形状与车辆或平台的表面间隔开，其中天线呈现出独立于取向或独立于角的圆偏振，同时覆盖宽频带 在一个实施例中为243-318MHz。

公开(公告)号：US20090213815A1

公开(公告)日：2009-08-27

申请号：US12072602

申请日：2008-02-27

Applicant: Matthew Sherman ,  David Claypool ,  Keith Conner ,  Phong C. Khuu

Inventor： Matthew Sherman ,  David Claypool ,  Keith Conner ,  Phong C. Khuu

IPC: H04J3/00 ,  H04L12/413

CPC classification number: H04W74/0841 ,  H04W72/0446

Abstract: Wireless medium access in a communication network having a number of terminals is controlled by defining protocol message units for transmission by a given terminal which units correspond to operational states of at least one of the terminal and the medium. A number of time slots are allocated for transmission of packets from each terminal, and a number of contention opportunities are defined at the beginning of each time slot. Priority and backoff mechanisms are defined and applied at each terminal during the contention opportunities in the slots. Packets are then transmitted by the terminal within the slots while (1) minimizing the occurrence of empty slots at times when packets are available for transmission, and (2) minimizing the number of slots during which two or more packets are detected on the medium simultaneously at the terminal.

Abstract translation: 通过定义用于由给定终端传输的协议消息单元来控制具有多个终端的通信网络中的无线介质访问，哪些单元对应于终端和介质中的至少一个的操作状态。 分配多个时隙用于从每个终端传输分组，并且在每个时隙开始时定义多个争用机会。 优先级和退避机制在时隙中的争用机会中在每个终端被定义和应用。 然后，分组在时隙内由终端发送，同时（1）在分组可用于传输时最小化空时隙的发生，以及（2）最小化同时在介质上检测到两个或更多分组的时隙数 在码头。

公开(公告)号：US07557673B1

公开(公告)日：2009-07-07

申请号：US11715705

申请日：2007-03-08

Applicant: David E. Meharry

Inventor： David E. Meharry

IPC: H03H7/42 ,  H03H7/48

CPC classification number: H03H7/463 ,  H01P1/213 ,  H01P5/10

Abstract: A wide bandwidth microwave balun utilizes frequency band splitting and two conventional baluns operating in a high frequency band and a low frequency band, which when combined offer a full bandwidth output, thus to offer wide bandwidth impedance matching and second-harmonic rejection.

Abstract translation: 宽带微波平衡 - 不平衡变换器利用频带分割和两个常规的在不同的频带和低频段工作的平衡 - 不平衡变换器，当组合时提供全带宽输出，从而提供宽带阻抗匹配和二次谐波抑制。

公开(公告)号：US07450082B1

公开(公告)日：2008-11-11

申请号：US11395495

申请日：2006-03-31

Applicant: Alfred R. Lopez

Inventor： Alfred R. Lopez

IPC: H01Q1/50 ,  H01Q21/00

CPC classification number: H01Q7/00 ,  H01Q9/0421 ,  H01Q9/40 ,  H01Q9/42 ,  H01Q21/20 ,  H01Q21/24

Abstract: A GPS antenna with anti-jam capabilities utilizes eight resonant loop radiator elements in a resonant exciter configuration to make available a primary and up to seven auxiliary antenna patterns usable with multi-pattern adaptive processing for anti-jam operation. Antennas as described enable desired radiation characteristics to be provided in a configuration of small size suitable for replacement of existing GPS aircraft antennas which lack anti-jam capabilities, in order to enable reliable GPS reception during airborne operations in the presence of interference or jamming. With enablement of multi-pattern adaptive processing, reduced-gain pattern notches or nulls may be employed to track and reduce the effect of incident signals which would otherwise jam or interfere with reception of GPS signals.

Abstract translation: 具有抗干扰能力的GPS天线利用谐振激励器配置中的八个谐振环路辐射器元件，以提供可用于多模式自适应处理以用于抗干扰操作的主要和多达七个辅助天线方向图。 如上所述的天线使得所需的辐射特性能够以适合于更换缺乏抗干扰能力的现有GPS飞机天线的小尺寸的配置来提供，以便在存在干扰或干扰的情况下在机载操作期间实现可靠的GPS接收。 通过启用多模式自适应处理，可以采用减小增益模式缺口或零点来跟踪和减少否则会阻塞或干扰GPS信号的接收的入射信号的影响。

公开(公告)号：US07315280B2

公开(公告)日：2008-01-01

申请号：US10853693

申请日：2004-05-25

Applicant: Richard Schiffmiller ,  Henry Adler ,  Melvin Carroll

Inventor： Richard Schiffmiller ,  Henry Adler ,  Melvin Carroll

IPC: G01S1/24

CPC classification number: G01S5/0252

Abstract: A coherent TOA system is provided for rapidly ascertaining the position of a pulse train emitter such as a radar. Techniques are provided to estimate the underlying repetition interval of the emitter and to do the TOA processing knowing which of the particular pulses is being detected at a collector, thus surmounting the effect of gaps in the received pulse stream. The subject system is preferable to conventional time-difference-of-arrival geolocation systems which require that each of the collecting platforms measure the same pulse from the emitter, and also to non-coherent TOA systems whose accuracy is less than that achievable with the subject coherent system for the same amount of data.

Abstract translation: 提供了一种连贯的TOA系统，用于快速确定诸如雷达的脉冲串发射器的位置。 提供技术来估计发射器的基本重复间隔，并且进行知道在集电极处检测到特定脉冲中的哪一个的TOA处理，从而克服接收到的脉冲流中的间隙的影响。 主题系统优于传统的到达时差的地理定位系统，其需要每个收集平台测量来自发射器的相同脉冲，以及测量精度小于对象可实现的非相干TOA系统 相干系统的数据量相同。

公开(公告)号：US20010030885A1

公开(公告)日：2001-10-18

申请号：US09760178

申请日：2001-01-12

Applicant: BAE SYSTEMS Information and Electronics Systems Integration, Inc.

Inventor： Jonathan Maimon ,  Murty S. Polavarapu

IPC: G11C011/00

CPC classification number: G11C11/412

Abstract: An integrated resistor includes a resistor body region and a resistor contact region that is aligned with the body region. Because the resistor includes an aligned body and contact, it often occupies a smaller area than prior integrated resistors having a similar resistance value. A method for forming such a resistor is also disclosed.

Abstract translation: 集成电阻器包括电阻体区域和与身体区域对准的电阻器接触区域。 因为电阻器包括对准的主体和接触，所以它通常占据比具有类似电阻值的现有集成电阻器更小的面积。 还公开了形成这种电阻器的方法。

公开(公告)号：US20210342652A1

公开(公告)日：2021-11-04

申请号：US16862867

申请日：2020-04-30

Applicant: BAE Systems Information and Electronics Systems Integration Inc.

Inventor： Martin S. Glassman

IPC: G06K9/62 ,  G06N20/10 ,  G06N20/20

Abstract: A classifier network has at least two distinct sets of refined data, wherein the first two sets of refined data are sets of numbers representing the features values data received from sensors or a manufactured part. Performing, via at least two distinct types of support vector machines using an associated feature selection process for each classifier independently in a first layer, anomaly detection on the manufactured part. Then, using the stored data including refined data of at least two different types of data transforms and performing, via at least a two distinct types of support vector machines in a second layer, an associated feature selection process for each classifier independently. Forming at least four distinct compound classifier types for anomaly detection on the part using the stored data or coefficients. The ensemble of second layer support vector machine outputs compare the results to determine the presence of an anomaly.

公开(公告)号：US20190340517A2

公开(公告)日：2019-11-07

申请号：US15035555

申请日：2015-09-08

Applicant: Olga Babko-Malaya ,  Daniel B. Hunter ,  Andrew C. Seidel ,  Michelle A. Torrelli

Inventor： Olga Babko-Malaya ,  Daniel B. Hunter ,  Andrew C. Seidel ,  Michelle A. Torrelli

IPC: G06N5/02 ,  G06F17/30 ,  G06N7/00

Abstract: The present invention is a method for constructing a knowledgebase that can provide analysis and trend prediction of emerging technologies. Metadata and full text are gathered from collections of documents, which can include more than 10 million documents, and are used to build a heterogeneous network of elements related to themes such as technical emergence. Indicators and models are selected that identify network characteristics and trends of interest. The indicators can be derived by applying a combination of citation analyses, natural language processing, entity disambiguation, organization classification, and time series analyses. A metric can be used to evaluate indicator utility. A framework can be sued to generate and validate the indicators. The models can be derived using an automated process. Upon receipt of a query, the indicators and models can be used to apply a scoring process to extracted features to predict a future prominence of an entity.