Augmentation of commercial wireless location system (WLS) with moving and/or airborne sensors for enhanced location accuracy and use of real-time overhead imagery for identification of wireless device locations
    2.
    发明授权
    Augmentation of commercial wireless location system (WLS) with moving and/or airborne sensors for enhanced location accuracy and use of real-time overhead imagery for identification of wireless device locations 有权
    使用移动和/或机载传感器来增强商用无线定位系统(WLS),以提高定位精度,并使用实时开销图像来识别无线设备位置

    公开(公告)号:US07427952B2

    公开(公告)日:2008-09-23

    申请号:US11398782

    申请日:2006-04-06

    IPC分类号: G01S1/24 G01S5/06 G01S5/12

    CPC分类号: G01S5/0226 G01C11/00 G01S5/06

    摘要: Mobile LMUs can be used in a Wireless Location System to provide detection coverage in areas lacking adequate receiver coverage. The mobile LMUs can be used to detect the radio frequency (RF) transmissions from wireless handsets and devices over a period of time to permit determination of their location. The mobile LMU's time, position, and velocity is calculated and transmitted to a SMLC along with any transmissions received from wireless devices. The SMLC analyzes and resolves the Doppler component of the wireless device while compensating for the Doppler component of the mobile LMU. The position and velocity of the wireless device can be compared with real-time imagery taken by the mobile LMU platform to accurately determine the location of the wireless device. To enhance the mobile LMU's ability to detect a signal of interest, which may be very weak and/or corrupted by noise, a process may be employed whereby the low power mobile terminals' signals are received at receiving sites and stored in memory. Then, a more powerful replica of the SOI is received at a later time from a network controller, or BTS, and this is employed to enhance the correlation processing of the SOI in memory.

    摘要翻译: 移动LMU可用于无线位置系统,以在缺乏足够的接收机覆盖的区域提供检测覆盖。 移动LMU可用于在一段时间内检测来自无线手机和设备的射频(RF)传输,以允许确定其位置。 计算移动LMU的时间,位置和速度并将其发送到SMLC以及从无线设备接收的任何传输。 SMLC分析并解决无线设备的多普勒分量,同时补偿移动LMU的多普勒分量。 无线设备的位置和速度可以与移动LMU平台拍摄的实时图像进行比较,以准确地确定无线设备的位置。 为了增强移动LMU检测感兴趣的信号(其可能非常弱和/或被噪声破坏)的能力,可以采用这样的过程,由此在接收站点接收低功率移动终端的信号并将其存储在存储器中。 然后,在后来从网络控制器或BTS接收更强大的SOI复制品,并且这被用于增强存储器中的SOI的相关处理。

    Interference detection, characterization and location in a wireless communications or broadcast system
    7.
    发明授权
    Interference detection, characterization and location in a wireless communications or broadcast system 有权
    无线通信或广播系统中的干扰检测,表征和位置

    公开(公告)号:US08138975B2

    公开(公告)日:2012-03-20

    申请号:US12346598

    申请日:2008-12-30

    IPC分类号: G01S3/02 G01S19/42

    摘要: A Wide Area Sensor Network (WASN) is disclosed that utilizes wideband software defined radios (SDRs) to monitor RF energy over a wide frequency range, detect when critical frequencies are being jammed or otherwise interfered with, and locate the source of the interference so that the interference can be eliminated. The WASN may use one or more geolocation techniques In addition, the WASN may detect and locate unauthorized transmitters as well as estimate the transmitted power of authorized transmitters to assure they are not transmitting more power than authorized.

    摘要翻译: 公开了广域传感器网络(WASN),其利用宽带软件定义的无线电(SDR)来监视宽频率范围内的RF能量,检测关键频率是否被卡住或以其他方式干扰,并定位干扰源,使得 可以消除干扰。 WASN可以使用一个或多个地理定位技术。此外,WASN可以检测和定位未经授权的发射机,以及估计授权发射机的发射功率,以确保它们不会传输比授权的更多的功率。

    Network Autonomous Wireless Location System
    9.
    发明申请
    Network Autonomous Wireless Location System 有权
    网络自主无线定位系统

    公开(公告)号:US20100273504A1

    公开(公告)日:2010-10-28

    申请号:US12428325

    申请日:2009-04-22

    IPC分类号: H04W24/00

    摘要: A Network Autonomous Wireless Location System (NAWLS) is designed to allow for precise location of a mobile device (e.g., a cell phone) without interconnection to, and with minimal disruption of, the local wireless communications network. Using distributed radio network monitors (RNM) and a managed network emulator (NE); mobile devices are sampled, acquired or captured. Once triggered by the RNM or NE, an untethered wireless location system (U-WLS) is used to calculate a precise location. The U-WLS; comprising mobile receiver sites, each capable of self location, exchanging information with other components of the NAWLS, and receiving or exchanging signals from the mobile device; utilizes various network-based and handset-based wireless location techniques dependent on the deployed options. In addition, the NAWLS includes data links interconnecting the U-WLS, NE and RNM.

    摘要翻译: 网络自主无线定位系统(NAWLS)被设计为允许移动设备(例如,蜂窝电话)的精确定位,而无需与本地无线通信网络的互连和最小的中断。 使用分布式无线网络监视器(RNM)和受管网络仿真器(NE); 移动设备被采样,获取或捕获。 一旦由RNM或NE触发,使用无限制无线定位系统(U-WLS)来计算精确位置。 U-WLS; 包括移动接收站点,每个能够自我定位,与NAWLS的其他组件交换信息,以及从移动设备接收或交换信号; 使用各种基于网络和基于手机的无线定位技术,这取决于部署的选项。 另外,NAWLS还包括互连U-WLS,NE和RNM的数据链路。