Shaped lens antenna for direction finding at the Ka-band
    52.
    发明授权
    Shaped lens antenna for direction finding at the Ka-band 有权
    用于Ka波段方向的成形透镜天线

    公开(公告)号:US09350086B2

    公开(公告)日:2016-05-24

    申请号:US13673697

    申请日:2012-11-09

    申请人: SRC, Inc.

    发明人: Lance Bradstreet

    IPC分类号: G01S5/02 H01Q25/02 H01Q15/08

    CPC分类号: H01Q25/02 H01Q15/08

    摘要: A high gain antenna for direction finding in the Ka-band. The antenna consists of a lens antenna fed by two micro strip patch antennas. The printed patch antennas are fed by a 180 degree hybrid coupler having four ports, with two ports connected to the feeds of the patch antennas and the other two ports connected to the receiver/exciter. The hybrid sums the signals from the patches and subtracts the signals from the patches to form sum and difference channels. By comparing the sum and difference channels, a user can determine whether the signal entered through the main beam. For example, if the sum signal is greater than the difference signal, the signal is in the main beam. If not, the signal came from another angle.

    摘要翻译: 用于Ka波段方向发现的高增益天线。 天线由两个微带贴片天线馈送的透镜天线组成。 印刷的贴片天线由具有四个端口的180度混合耦合器馈送,其中两个端口连接到贴片天线的馈电,而另外两个端口连接到接收器/激励器。 混合器将来自补丁的信号相加,并从补丁中减去信号以形成和通道和差分通道。 通过比较总和差分通道,用户可以确定通过主光束输入的信号。 例如,如果和信号大于差分信号,信号处于主波束中。 如果没有,信号来自另一个角度。

    Nucleic acid-labeled tags associated with odorant
    53.
    发明授权
    Nucleic acid-labeled tags associated with odorant 有权
    与加味剂相关的核酸标记的标签

    公开(公告)号:US09315852B2

    公开(公告)日:2016-04-19

    申请号:US14247479

    申请日:2014-04-08

    申请人: SRC, Inc.

    发明人: Mary F. Swartz

    IPC分类号: G01N37/00 C12Q1/68

    摘要: A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule, an odorant, and an encapsulant. Unique nucleic acid-containing tags containing an odorant are seeded at one or more geographic locations. Using odorant-detection systems, the person or object of interest is examined for the presence of one or more of the odorant, thereby revealing the presence of the seeded nucleic acids and eliminating the expense and time associated with unnecessary screening. The geographic location associated with each detected nucleic acid is used to backtrack the item's path or extrapolate a probable point of origin.

    摘要翻译: 核酸标签,其包含与核酸分子连接的核苷酸支持平台,加味剂和密封剂。 将含有气味剂的独特的含有核酸的标签接种在一个或多个地理位置。 使用气味检测系统,检查感兴趣的个体或物体的一种或多种气味剂的存在,从而揭示接种的核酸的存在并消除与不必要的筛选相关的费用和时间。 与每个检测到的核酸相关联的地理位置用于回溯物品的路径或外推可能的原点。

    Detection of chemical and biological agents using oligonucleotide aptamers
    54.
    发明授权
    Detection of chemical and biological agents using oligonucleotide aptamers 有权
    使用寡核苷酸适配子检测化学和生物制剂

    公开(公告)号:US09310357B2

    公开(公告)日:2016-04-12

    申请号:US13630189

    申请日:2012-09-28

    申请人: SRC, Inc.

    发明人: Adam J. Lowe

    IPC分类号: C12Q1/68 G01N33/53 C12N15/115

    CPC分类号: G01N33/5308 C12N15/115

    摘要: Methods and systems for detecting chemical and biological agents using oligonucleotide aptamers. A sensor includes a detection complex between an aptamer that has a binding domain for the chemical or biological agent, and a first oligonucleotide with a sequence complementary to a region of the aptamer. In the absence of the agent, the aptamer and the first oligonucleotide form an intermediate combination. In the presence of the agent, the intermediate combination dissociates. The sensor further includes a second oligonucleotide with a sequence that interacts with a region of the first oligonucleotide to form a duplex structure only when the first oligonucleotide is dissociated from the aptamer. When the duplex structure is formed, it can interact with a reporter molecule which in turn initiates a signal reporting detection of the chemical or biological agent.

    摘要翻译: 使用寡核苷酸适体检测化学和生物制剂的方法和系统。 传感器包括具有用于化学或生物学试剂的结合结构域的适配体与具有与适体区域互补的序列的第一寡核苷酸之间的检测复合物。 在没有试剂的情况下,适体和第一寡核苷酸形成中间体组合。 在试剂的存在下,中间体组合解离。 传感器还包括第二寡核苷酸,其具有仅当第一寡核苷酸与适体解离时具有与第一寡核苷酸的区域相互作用以形成双链体结构的序列。 当双链体结构形成时,它可以与报告分子相互作用,报告分子又会引发报告化学或生物学检测的信号。

    MIMO angle estimation with simultaneous mainlobe jammer cancellation
    55.
    发明授权
    MIMO angle estimation with simultaneous mainlobe jammer cancellation 有权
    具有同时主瓣干扰消除的MIMO角度估计

    公开(公告)号:US09207313B2

    公开(公告)日:2015-12-08

    申请号:US13792603

    申请日:2013-03-11

    申请人: SRC, INC.

    发明人: Harvey K. Schuman

    摘要: A radar system includes a transmit antenna array having subarrays disposed at predetermined positions. An orthogonal waveform signal is directed to a corresponding one of the subarrays. On receive, an adaptive processor derives a plurality of adaptive weight factors from a plurality of receive signals and applies them to the receive signals to obtain a jammer cancelled signal. That signal is separated into its orthogonal waveform components by passing it through a bank of correlators. The correlator system provides a plurality of unique receive signals substantially corresponding one-to-one to the unique transmit subarrays. The receive beamformer derives an angular estimate of at least one target relative to boresight from the unique receive signals.

    摘要翻译: 雷达系统包括具有设置在预定位置的子阵列的发射天线阵列。 正交波形信号被引导到对应的一个子阵列。 在接收时,自适应处理器从多个接收信号中导出多个自适应加权因子并将其应用于接收信号以获得干扰消除信号。 该信号通过将其通过一组相关器分离成其正交波形分量。 相关器系统提供基本上对应于唯一发射子阵列一对一的多个唯一接收信号。 接收波束成形器从独特的接收信号中导出至少一个目标相对于视轴的角度估计。

    MIMO ANGLE ESTIMATION WITH SIMULTANEOUS MAINLOBE JAMMER CANCELLATION
    56.
    发明申请
    MIMO ANGLE ESTIMATION WITH SIMULTANEOUS MAINLOBE JAMMER CANCELLATION 有权
    MIMO角度估计与同步主波束消除

    公开(公告)号:US20150323650A1

    公开(公告)日:2015-11-12

    申请号:US13792603

    申请日:2013-03-11

    申请人: SRC, INC.

    发明人: Harvey K. Schuman

    摘要: A radar system includes a transmit antenna array having subarrays disposed at predetermined positions. An orthogonal waveform signal is directed to a corresponding one of the subarrays. On receive, an adaptive processor derives a plurality of adaptive weight factors from a plurality of receive signals and applies them to the receive signals to obtain a jammer cancelled signal. That signal is separated into its orthogonal waveform components by passing it through a bank of correlators. The correlator system provides a plurality of unique receive signals substantially corresponding one-to-one to the unique transmit subarrays. The receive beamformer derives an angular estimate of at least one target relative to boresight from the unique receive signals.

    摘要翻译: 雷达系统包括具有设置在预定位置的子阵列的发射天线阵列。 正交波形信号被引导到对应的一个子阵列。 在接收时,自适应处理器从多个接收信号中导出多个自适应加权因子并将其应用于接收信号以获得干扰消除信号。 该信号通过将其通过一组相关器分离成其正交波形分量。 相关器系统提供基本上对应于唯一发射子阵列一对一的多个唯一接收信号。 接收波束成形器从独特的接收信号中导出至少一个目标相对于视轴的角度估计。

    Methods and Systems For DNA-Based Detection And Reporting
    57.
    发明申请
    Methods and Systems For DNA-Based Detection And Reporting 审中-公开
    用于DNA检测和报告的方法和系统

    公开(公告)号:US20140272946A1

    公开(公告)日:2014-09-18

    申请号:US13833538

    申请日:2013-03-15

    申请人: SRC, INC.

    IPC分类号: C12Q1/68

    摘要: Methods, systems, and devices for the detection and notification of chemical, biological, radiological, nuclear, and/or explosive agent. The detection and notification system uses aptamers bound to a catalyst that is activated when the aptamer binds to the agent. The activated catalyst acts on a substrate to create a signal that is detected, indicating the presence of the agent. For example, the system can be a glove worn by a user that includes a catalyst/substrate pair that, in the presence of the target agent, produces a colorimetric and/or fluorescent signal in a time-efficient manner.

    摘要翻译: 用于检测和通知化学,生物,放射性,核和/或爆炸剂的方法,系统和装置。 检测和通知系统使用与催化剂结合的适体,当适体与该药剂结合时,该催化剂被活化。 活化的催化剂作用在基底上以产生被检测的信号,指示试剂的存在。 例如,该系统可以是用户佩戴的手套,其包括催化剂/衬底对,其在目标剂的存在下以时间有效的方式产生比色和/或荧光信号。

    Methods And Systems For Injecting Wireless Messages in Cellular Communications Systems
    58.
    发明申请
    Methods And Systems For Injecting Wireless Messages in Cellular Communications Systems 审中-公开
    在蜂窝通信系统中注入无线消息的方法和系统

    公开(公告)号:US20140220935A1

    公开(公告)日:2014-08-07

    申请号:US14175332

    申请日:2014-02-07

    申请人: SRC, INC.

    IPC分类号: H04W12/10 H04W68/02

    摘要: Methods and systems for injecting a wireless message in a cellular communication system. The attacking system receives a synchronization waveform from a base station and synchronizes in time and frequency. The attacking system transmits the correct time and frequency, and also transmits one or more attack messages. The mobile transceiver receives the one or more attack messages and responds. The attacking system then transmits a first wireless message configured to alter a characteristic of a physical layer of the mobile station.

    摘要翻译: 用于在蜂窝通信系统中注入无线消息的方法和系统。 攻击系统从基站接收同步波形,并在时间和频率上同步。 攻击系统发送正确的时间和频率,并发送一个或多个攻击消息。 移动收发器接收一个或多个攻击消息并进行响应。 攻击系统然后发送被配置为改变移动台的物理层的特性的第一无线消息。

    ADAPTIVE SIDELOBE SUPPRESSION OF RADAR TRANSMIT ANTENNA PATTERN
    59.
    发明申请
    ADAPTIVE SIDELOBE SUPPRESSION OF RADAR TRANSMIT ANTENNA PATTERN 审中-公开
    雷达发射天线模式的自适应边界抑制

    公开(公告)号:US20140159955A1

    公开(公告)日:2014-06-12

    申请号:US13712379

    申请日:2012-12-12

    申请人: SRC, Inc.

    发明人: Harvey K. Schuman

    IPC分类号: G01S7/02

    CPC分类号: G01S7/2813

    摘要: A system for adaptively generating a sidelobe null in a radar transmit antenna pattern by positioning a small air vehicle along the radial of the sidelobe to be suppressed. The air vehicle is fitted with a receiver and antenna facing the radar, as well as a GPS device for maintaining the designated position. The vehicle further includes a communication link to the processor of the main radar transmitter to form a closed loop that enables adjustment of the attenuators and phase shifters of the auxiliary channel(s) to suppress signals transmitted in the sidelobe to be nulled. The com link may be replaced by a suitable transponder.

    摘要翻译: 一种用于通过沿着待抑制的旁瓣的径向定位小型飞行器来自适应地在雷达发射天线图案中产生副瓣零点的系统。 该机动车辆装备有面向雷达的接收器和天线,以及用于维持指定位置的GPS装置。 车辆还包括到主雷达发射机的处理器的通信链路,以形成一个闭环,该闭环能够调整辅助信道的衰减器和移相器,以抑制在旁瓣中传输的信号将被置零。 com链接可以由适当的应答器代替。

    NC-OFDM For A Cognitive Radio
    60.
    发明申请
    NC-OFDM For A Cognitive Radio 有权
    用于认知无线电的NC-OFDM

    公开(公告)号:US20130294219A1

    公开(公告)日:2013-11-07

    申请号:US13739088

    申请日:2013-01-11

    申请人: SRC, INC.

    IPC分类号: H04W72/04

    摘要: The present invention is directed to a method for use in a cognitive radio. A Fourier transform of a time domain signal is performed to obtain a series of frequency domain samples covering substantially the entire predetermined RF spectrum, the time domain signal corresponding to the RF waveform, each frequency domain sample being characterized by a predetermined waveform characteristic. The predetermined waveform characteristic of each frequency domain sample is evaluated in each subcarrier block to obtain a subcarrier block activity level for each subcarrier block. A subcarrier block is selected when its subcarrier block activity level is greater than a predetermined threshold.

    摘要翻译: 本发明涉及一种在认知无线电中使用的方法。 执行时域信号的傅立叶变换以获得覆盖基本上整个预定RF频谱的一系列频域样本,即与RF波形相对应的时域信号,每个频域采样由预定波形特征表征。 在每个子载波块中评估每个频域样本的预定波形特性,以获得每个子载波块的子载波块活动级别。 当子载波块的活动级别大于预定阈值时,选择副载波块。