公开(公告)号：WO2005026661A1

公开(公告)日：2005-03-24

申请号：PCT/US2004/009720

申请日：2004-03-30

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  GRASSO, Robert, J.

Inventor： GRASSO, Robert, J.

IPC: G01C03/00

CPC classification number: G01S17/89 ,  G01S17/026 ,  G01S17/66 ,  G01S17/88 ,  H04B11/00

Abstract: A method for detecting, tracking and locating submarines (24) utilizes pulsed coherent radiation from a laser (12) that is projected down through a water column, with particles in the water producing speckle from backscatter of the random particle distribution, with correlation of two closely time-spaced particle-based speckle patterns providing an intensity measurement indicative of the presence of a submarine. Subsurface submarine movement provides a subsurface wake which causes movement of particles such that two closely-spaced “snapshots” of the returns from particles in the same water column can detect particle movement due to the wake. The magnitude of the speckle pattern change indicates particle movement. In one embodiment, the return signals are imaged onto an intensified CCD or APA array that capture two successive laser pulses through the utilization of dual pixel registered cameras. Note that in the subject system, phase information is converted to measurable intensity information relating to particle motion.

Abstract translation: 一种用于检测，跟踪和定位潜艇（24）的方法利用来自激光（12）的脉冲相干辐射，其通过水柱向下突出，水中的颗粒从随机粒子分布的后向散射中产生斑点，其中两个相关 紧密的时间间隔的基于粒子的散斑图案，提供指示潜艇的存在的强度测量。 地下潜艇运动提供了一个次表面的尾流，导致颗粒运动，使得同一水柱中颗粒的返回的两个紧密间隔的“快照”可以检测由于尾流引起的颗粒运动。 斑点图案变化的大小表示粒子运动。 在一个实施例中，将返回信号成像到增强的CCD或APA阵列，其通过利用双像素注册的相机捕获两个连续的激光脉冲。 注意，在主题系统中，相位信息被转换成与粒子运动相关的可测量的强度信息。

公开(公告)号：WO2005013413A2

公开(公告)日：2005-02-10

申请号：PCT/US2004/024215

申请日：2004-07-28

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  APOSTOLOS, John, T. ,  GILBERT, Roland, A.

Inventor： APOSTOLOS, John, T. ,  GILBERT, Roland, A.

IPC: H01Q

CPC classification number: H01Q1/00 ,  H01Q13/10

Abstract: A combination of aVivaldi slot and a meander line loaded antenna which exhibits an ultra wideband characteristic with de Vivaldi notch expanding the high end and with the meander line loaded antenna portion reducing the low frequency cut-off. When these antennas are arrayed, this array exhibits a single lobe and an ultra wide 100: l bandwidth. The Vivaldi notch portion of the antenna accommodates the higher frequencies, whereas the meander line loaded antenna portion of the antenna accommodates the lower frequencies, there being a smooth transition region between the Vivaldi and meander line portions of the antenna and no discontinuity. A polarity switchable embodiment and a concatenated embodiment are also disclosed.

Abstract translation: 具有Vivaldi槽和曲折线加载天线的组合，其展现出具有扩展高端的de Vivaldi切口的超宽带特性以及减少低频截止的曲折线加载天线部分。 当这些天线排列时，该阵列呈现单波瓣和超宽的100：1带宽。 天线的Vivaldi切口部分容纳更高的频率，而天线的曲折线加载天线部分容纳较低的频率，在天线的维瓦尔第面线和曲折线部分之间存在平滑的过渡区域，并且没有不连续性。 还公开了极性可切换实施例和级联实施例。

公开(公告)号：WO2004100416A1

公开(公告)日：2004-11-18

申请号：PCT/US2003/020484

申请日：2003-06-30

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC. ,  MILLS, Diane, G. ,  KOTRLIK, Michael, J. ,  KARWEDSKY, Kari, M.

Inventor： MILLS, Diane, G. ,  KOTRLIK, Michael, J. ,  KARWEDSKY, Kari, M.

IPC: H04K1/10

CPC classification number: H04B1/7107 ,  H04B1/692 ,  H04B1/7103 ,  H04B1/71075 ,  H04B2201/70702 ,  H04J11/0023 ,  H04L5/026 ,  H04L25/03159 ,  H04L27/2601 ,  H04L2025/03414

Abstract: Interference cancellation techniques for use in a wireless multicarrier communications system where signals from multiple wireless networks might be present and interfering with the detection and demodulation processes are disclosed. Interference cancellation (103) is applied to the interfering network before removing same-system interference (107). By removing the contribution of all interfering systems from a receiver's aggregate signal, the receiver is capable of detection and demodulation. Performance can be further improved by including an additional level of interference cancellation within the system of interest to separate the individual user of interest.

Abstract translation: 公开了一种用于在来自多个无线网络的信号可能存在​​并且干扰检测和解调过程的无线多载波通信系统中的干扰消除技术。 在去除同系统干扰之前，将干扰消除（103）应用于干扰网络（107）。 通过从接收机的聚合信号中消除所有干扰系统的贡献，接收机能够进行检测和解调。 通过在感兴趣的系统内包括额外的干扰消除水平来分离感兴趣的个体用户，可以进一步改善性能。

公开(公告)号：WO2004100013A1

公开(公告)日：2004-11-18

申请号：PCT/US2003/027476

申请日：2003-09-02

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC. ,  BOLAND, Robert, P. ,  SIMONSON, Peter ,  BRYANT, Jeffrey, F. ,  DALRYMPLE, Douglas, K. ,  WARDWELL, David, R.

Inventor： BOLAND, Robert, P. ,  SIMONSON, Peter ,  BRYANT, Jeffrey, F. ,  DALRYMPLE, Douglas, K. ,  WARDWELL, David, R.

IPC: G06F15/177

CPC classification number: G06F9/465

Abstract: A reconfigurable distributed signal processing system (10) uses an object-oriented component-framework architecture in which the system permits large-scale software reuse. This is accomplished by the use of a framework and a number of reusable, reconfigurable software components (12) that are hardware independent. The components communicate over a data fabric (14) using open published APIs over one or more data communications mechanisms. Interchangeable software components are used that perform the signal processing. Interchangeability is assured by each component meeting a required interface in which the component inherits the required interface elements from component base classes. This use of inheritance to assure interface compliance also reduces the programming work required for developing a component. Most importantly, the interchangeable components are reconfigurable into various systems at runtime, as defined by a Plan. A Plan (18) is a schematic of the configuration of the various components to be used to solve a particular signal processing problem which includes the list of components, what computer each component is to execute on, how the components are interconnected, and the initial parameter values of the components. The system functionality and capability can be reconfigured at runtime based on a Plan read by a software element of the framework, the Framework Manager (16). Moreover, the source code for the components is platform independent. The system is able to use heterogeneous commercial off-the-shelf hardware to minimize equipment costs and lower non-­recurring engineering costs as well. The system uses the object-oriented programming and software development to reduce time to market and to ensure program success while at the same time exploiting a standard development methodology.

Abstract translation: 可重新配置的分布式信号处理系统（10）使用面向对象的组件框架架构，其中系统允许大规模的软件重用。 这是通过使用框架和许多可重复使用的可重新配置的软件组件（12）来实现的，该软件组件是独立于硬件的。 组件通过一个或多个数据通信机制使用公开的已发布API通过数据结构（14）进行通信。 使用可交换的软件组件进行信号处理。 每个组件满足所需的接口，组件可以从组件基类继承所需的接口元素来确保互换性。 这种使用继承来确保接口合规性也减少了开发组件所需的编程工作。 最重要的是，可以在运行时将可互换组件重新配置成各种系统，如“计划”所定义。 计划（18）是用于解决特定信号处理问题的各种组件的配置的示意图，其包括组件列表，每个组件要执行什么计算机，组件如何互连以及初始化 组件的参数值。 基于框架管理器（16）的框架软件元素读取的计划，可以在运行时重新配置系统功能和功能。 此外，组件的源代码与平台无关。 该系统能够使用异构的商业现成硬件来最小化设备成本并降低非经常性工程成本。 该系统使用面向对象的编程和软件开发来缩短上市时间并确保程序成功，同时利用标准开发方法。

公开(公告)号：WO2004095534A2

公开(公告)日：2004-11-04

申请号：PCT/US2004/006326

申请日：2004-03-02

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  UPPAL, Parvez, N.

Inventor： UPPAL, Parvez, N.

IPC: H01L

CPC classification number: B82Y20/00 ,  H01L21/02395 ,  H01L21/02463 ,  H01L21/02466 ,  H01L21/02507 ,  H01L21/0251 ,  H01L21/02546 ,  H01L31/03046 ,  H01L31/035236 ,  H01L31/0693 ,  H01L31/09 ,  Y02E10/544

Abstract: GaAs substrates with compositionally graded buffer layers for matching lattice constants with high-Indium semiconductor materials such as quantum well infrared photoconductor devices and thermo photo voltaic devices are disclosed.

Abstract translation: 公开了具有用于与高铟铟半导体材料如量子阱红外光电导体器件和热光伏器件匹配晶格常数的组成渐变缓冲层的GaAs衬底。

公开(公告)号：WO2004093057A2

公开(公告)日：2004-10-28

申请号：PCT/US2004/009719

申请日：2004-03-30

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  KIMBALL, Steven, F. ,  COMO, Joanne, N.

Inventor： KIMBALL, Steven, F. ,  COMO, Joanne, N.

IPC: G10L

CPC classification number: G10L25/48 ,  G10L15/142 ,  G10L25/78

Abstract: A method and system for training an audio analyzer (114) to identify asynchronous segments of audio types using sample data sets, the sample data set being representative of audio signal which segmentation is desired. The system and method then label asynchronous segments of audio samples, collected at the target site, into a plurality of categories by cascading hidden Markov models (HMM). The cascaded HMMs consist of 2 stages, the output of the first stage HMM (208) being transformed and used as observation inputs to the second stage HMM (212). This cascaded HMM approach allows for modeling processes with complex temporal characteristics by using training data. It also contains a flexible framework that allows for segments of varying duration. The system and method are particularly useful in identifying and separating segments of the human voice for voice recognition systems from other audio such as music.

Abstract translation: 一种用于训练音频分析器（114）以使用采样数据集识别音频类型的异步段的方法和系统，所述采样数据集代表期望的分段的音频信号。 然后，系统和方法通过级联隐马尔可夫模型（HMM）将在目标站点收集的音频样本的异步段标记为多个类别。 级联HMM由2级组成，第一级HMM（208）的输出被变换并用作第二级HMM（212）的观测输入。 这种级联HMM方法允许通过使用训练数据对具有复杂时间特征的建模过程。 它还包含一个灵活的框架，允许不同持续时间的段。 该系统和方法特别可用于识别和分离用于语音识别系统的人类语音的段与其他音频（例如音乐）分离。

公开(公告)号：WO2004068630A2

公开(公告)日：2004-08-12

申请号：PCT/US2004/002127

申请日：2004-01-22

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  MARSAN, Lynn, A. ,  URBANIK, Edward, A.

Inventor： MARSAN, Lynn, A. ,  URBANIK, Edward, A.

IPC: H01Q

CPC classification number: H01Q9/40 ,  H01Q1/28 ,  H01Q1/36 ,  H01Q21/08

Abstract: A low radar cross-section monocone antenna is provided with an ultra-wide bandwidth in the microwave region of the electromagnetic spectrum running from 1 gigahertz to 18 gigahertz by decreasing the low frequency cutoff through enlarging the overall dimensions of the cone while at the same time maintaining the base diameter of the apex of the cone to the initially-set dimension that establishes the high frequency cutoff of the antenna. The apex of this cone that serves as its feed point has a base diameter that results in the wide bandwidth, with the monocone antenna having a 5 dBi gain and omnidirectional coverage.

Abstract translation: 低雷达截面单能天线在电磁频谱的微波区域提供超宽带宽，从1千兆赫到18千兆赫，通过放大锥体的整体尺寸同时减小低频截止频率 将锥体的顶点的基部直径保持为建立天线的高频截止的初始设置的尺寸。 作为其馈电点的锥体的顶点具有导致宽带宽的基底直径，单根天线具有5dBi增益和全向覆盖。

公开(公告)号：WO2004062035A1

公开(公告)日：2004-07-22

申请号：PCT/US2003/041776

申请日：2003-12-31

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  LO, Zane

Inventor： LO, Zane

IPC: H01Q21/00

CPC classification number: H01Q21/0006 ,  H01Q5/42 ,  H01Q9/285 ,  H01Q13/106 ,  H01Q21/064

Abstract: A cavity-backed wideband slimline flat panel antenna array for providing a steerable beam includes an array of slot antennas, each of which fed by its own individual dipole radiator, with the wide bandwidth being due to the matching impedances of the slot antenna and dipole radiator across the entire frequency band. In one embodiment, an upstanding printed circuit balun feed is connected to each dipole. The dipole elements are located to either side of a slot, and are arrayed on the underneath side of a dielectric layer under the substrate into which the slots are formed, with the dipole elements directly fed by individual upstanding printed circuit baluns which are arrayed beneath the individual slots antennas. The use of the dipole elements, in addition to providing a wider operational bandwidth, also permits feeding each of the slots without having to use striplines which would have to cross each other and therefore not work. A wide bandwidth steerable flat panel array utilizing the dipole fed slot antennas may be mounted on the deck house or other flat structural component of a vessel so as to perform a "smart skin" function in which the antenna not only functions as a radiating element, but also as a structural part of the vessel itself. In commercial applications, the flat panel array may be incorporated into the wall of a building such that point-to­point communications between buildings may be accomplished through an antenna which is also a structural part of the building. Note that the beams from the antenna are aimable by appropriately phasing the array to point at a receiving antenna on an adjacent building.

Abstract translation: 用于提供可转向光束的空腔背面的宽带细长平板天线阵列包括槽天线阵列，每个槽天线由其各自的偶极辐射器馈送，宽带宽是由于缝隙天线和偶极辐射器的匹配阻抗 跨越整个频段。 在一个实施例中，直立的印刷电路平衡不平衡变换器馈送连接到每个偶极子。 偶极元件位于槽的任一侧，并且被布置在其下形成有槽的基底下方的介质层的下侧，偶极元件直接由单独的直立印刷电路平衡 - 不平衡变换器馈送， 单个插槽天线。 除了提供更宽的操作带宽之外，偶极子元件的使用还允许馈送每个槽，而不必使用必须彼此交叉并因此不工作的带状线。 使用偶极馈电缝隙天线的宽带可控平板阵列可以安装在甲板室或容器的其他平坦结构部件上，以便执行“智能皮肤”功能，其中天线不仅用作辐射元件， 而且也是船舶本身的结构部分。 在商业应用中，平板阵列可以结合到建筑物的墙壁中，使得建筑物之间的点对点通信可以通过也是建筑物的结构部分的天线来实现。 注意，来自天线的波束可以通过将阵列适当地定位在相邻建筑物的接收天线上来瞄准。

公开(公告)号：WO2004062033A1

公开(公告)日：2004-07-22

申请号：PCT/US2003/034996

申请日：2003-11-03

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC. ,  APOSTOLOS, John, T, ,  MCKIVERGAN, Patrick

Inventor： APOSTOLOS, John, T, ,  MCKIVERGAN, Patrick

IPC: H01Q11/12

CPC classification number: H01P5/02 ,  H01Q1/362

Abstract: A switched meander line structure is substituted for a lumped element coupler (10) for an order of magnitude increase in gain due to the use of the switched meander line architecture. The use of the meander line (20) with relatively wide and thick folded legs markedly decreases I2R losses over wire inductors whose wire diameters at one-tenth of an inch contribute significantly to I2R losses. Additionally, placing solid state switches to short out various sections of a multi-leg meander line at high impedance nodes reduces I2R losses across the switching elements in the coupler. It has been found that, regardless of the impedance of the antenna, this impedance may be matched by switching in and out various sections of a folded multileg meander line due to the fact that the square of the sum of the capacitive reactances of the meander line decreases with frequency in synchronism with the unloaded Q of the meander line, thus to provide the ability to maintain a good match over frequency as the meander line is tuned to achieve resonance by shorting out combinations of sections of the meander line. The result of the substitution of the meander line architecture for the lumped element coupler is the reduction of losses associated with the use of wire inductors and losses due to the interposition of solid state switches at high-current nodes.

Abstract translation: 由于使用开关曲折线结构，开关曲折线结构代替集总元件耦合器（10）增益增加一个数量级。 使用具有相对较宽和较厚的折叠腿的曲折线（20）显着地降低了线电感器上的I2R损耗，其线直径在十分之一英寸处显着地贡献于I2R损耗。 另外，在高阻抗节点处放置固态开关以短路多腿曲折线的各个部分可减少耦合器中开关元件的I2R损耗。 已经发现，无论天线的阻抗如何，通过切换和折叠多重曲折曲折线的各个部分可以匹配该阻抗，这是由于曲折线的电容性电抗之和的平方 随着频率与曲折线的未加载的Q同步地减小，从而提供在频率上保持良好匹配的能力，因为曲折线被调谐以通过短路曲折线的部分的组合来实现共振。 用于集总元件耦合器的曲折线架构的替代的结果是减少与使用导线电感器相关的损耗以及由于在高电流节点处插入固态开关造成的损耗。

公开(公告)号：WO2004057363A2

公开(公告)日：2004-07-08

申请号：PCT/US2003/040424

申请日：2003-12-17

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. ,  VACCARO, Thomas, R. ,  PAUL, Norman, D.

Inventor： VACCARO, Thomas, R. ,  PAUL, Norman, D.

IPC: G01S5/02

CPC classification number: G01S7/021 ,  H01Q3/26 ,  H01Q21/0025 ,  H04B7/086

Abstract: A system is provided for assisting in the detection and tracking of narrowband signals arriving at an antenna array operating over a wide detection bandwidth and in a crowded RF environment. Since the nature of the detection mission is constrained to be a general search, the system does not attempt to detect signals of interest via matched filtering mechanism (i.e. training sets), but exploits general properties such as power, frequency, time and angle of arrival. For the purposes of providing sufficient Frequency/Time resolution as well as to avoid array overloading in the detection process, the digitized wideband streaming data is frequency channelized using a sufficient high revisit rate for the signal set of interest, constrained by the required feature detection accuracy or environment adaption rates. Within each frequency subchannel, efficient array signal subspace tracking techniques are used to separate and track spatially separated cochannel signals. Subspace tracking allows the efficient update of the signal subspace, useful for direction finding and copy applications, as well as determining the number of signals present in a frequency channel. Since the frequency channelization of the detection system may not match that of the detected signal, the combination of Time/Frequency/Space information is used to cluster or group frequency subchannels and provide a higher degree of signal detection capability with an increased robustness against false signal detections.

Abstract translation: 提供了一种系统，用于帮助检测和跟踪到达在宽检测带宽上操作的天线阵列的窄带信号，并且在拥挤的RF环境中。 由于检测任务的性质被限制为一般搜索，系统不会通过匹配的滤波机制（即训练集）来尝试检测感兴趣的信号，而是利用一般属性，如功率，频率，时间和到达角度 。 为了提供足够的频率/时间分辨率以及避免在检测过程中的阵列过载，数字化的宽带流数据被频率信道化，使用感兴趣的信号组的足够高的重访速率，由所需的特征检测精度 或环境适应率。