Method and device for protection against a jammer in a radio station
comprising several change-over antennas and their use for the making of
radiogoniometers
    1.
    发明授权
    Method and device for protection against a jammer in a radio station comprising several change-over antennas and their use for the making of radiogoniometers 失效
    用于防止包含若干转换天线的无线电台中的干扰信号的方法和装置及其用于制作放射计量计

    公开(公告)号:US4903032A

    公开(公告)日:1990-02-20

    申请号:US215709

    申请日:1988-07-06

    CPC classification number: H03H7/255 G01S3/46 G01S3/72

    Abstract: The method consists in the step of masking the energy influence of the aliased spectrum of a jammer received in the useful band of each of the reception channels of a radio station during a determined time interval surrounding the change-over instant of each antenna. The masking is done either by means of attenuators with diodes placed at the input of each of the reception channels and controlled during the determined time interval or by memorizing, at least during the time interval, the gain of the intermediate frequency amplifiers before the change over takes place, by opening the automatic gain control loop of the intermediate frequency amplifiers to stabilize the gain of each amplifier, during the change over, at its memorized gain value.

    Abstract translation: 该方法包括以下步骤:在围绕每个天线的转换时刻的确定的时间间隔内屏蔽在无线电台的每个接收信道的有用频带中接收的干扰信号的混叠频谱的能量影响的步骤。 掩蔽是通过衰减器完成的,二极管放置在每个接收通道的输入处,并且在确定的时间间隔期间被控制,或者至少在时间间隔期间,存储中间频率放大器在改变之前的增益 通过打开中频放大器的自动增益控制环来稳定每个放大器的增益,在其存储的增益值改变期间。

    Telecommunications System Comprising an Airborne Communication Node, Airborne Communication Node and Tactical Radio Node
    2.
    发明申请
    Telecommunications System Comprising an Airborne Communication Node, Airborne Communication Node and Tactical Radio Node 审中-公开
    包含机载通信节点,机载通信节点和战术无线电节点的电信系统

    公开(公告)号:US20130044677A1

    公开(公告)日:2013-02-21

    申请号:US13509736

    申请日:2010-11-04

    CPC classification number: H04B7/18504

    Abstract: A telecommunications system comprises a number of remote subnetworks, a subnetwork comprising at least one tactical radio node NRT serving as gateway between said subnetwork and a backbone network consisting of at least one airborne communication node. An NRT node communicates with the airborne communication node by converting the wave form of the signals to be transmitted outside the subnetwork being associated with it into a wave form used by the airborne communication node, said airborne communication node transmitting the duly received signal without modifying its wave form to at least one NRT node belonging to another subnetwork. A tactical radio communication node and an airborne communication node are also disclosed.

    Abstract translation: 电信系统包括多个远程子网络,子网络包括至少一个作为所述子网络和由至少一个机载通信节点组成的骨干网络之间的网关的战术无线电节点NRT。 NRT节点通过将要与其相关联的子网外的信号的波形转换为机载通信节点使用的波形,与机载通信节点进行通信,所述机载通信节点发送适当接收的信号,而不修改其 波形到属于另一子网的至少一个NRT节点。 还公开了一种战术无线电通信节点和机载通信节点。

    Multisensor reception method for a fixed base station of a
communications network exchanging data with mobile stations and device
for its implementation
    3.
    发明授权
    Multisensor reception method for a fixed base station of a communications network exchanging data with mobile stations and device for its implementation 失效
    用于与移动站交换数据的通信网络的固定基站的多传感器接收方法及其实现的装置

    公开(公告)号:US5752168A

    公开(公告)日:1998-05-12

    申请号:US620699

    申请日:1996-03-21

    CPC classification number: H04B7/0857

    Abstract: Disclosed is a method enabling the improvement of the multisensor reception of a system of radiocommunications exchanging signals between at least one fixed base station providing for multisensor reception by means of a network of sensors, and the processing of the signals. This method consists, in a transparent manner perceived from the base station, in computing a weighting vector W for the formation of channels at reception. The weighting vector W is estimated by an adaptive algorithm leading to a maximization of the signal-to-noise ratio. Application: mobile radiocommunications. FIG. 1

    Abstract translation: 公开了一种能够改善无线电通信系统的多传感器接收的方法,该无线电通信系统在通过传感器网络提供多传感器接收的至少一个固定基站和信号处理之间交换信号。 该方法以从基站感知的透明方式包括计算用于在接收时形成信道的加权矢量W. 通过自适应算法估计加权矢量W,导致信噪比的最大化。 应用:移动无线电通信。 图。

    Method and device for space division multiplexing of radio signals transmitted in cellular radio communications
    4.
    发明授权
    Method and device for space division multiplexing of radio signals transmitted in cellular radio communications 失效
    用于在蜂窝无线电通信中传输的无线电信号的空分复用的方法和装置

    公开(公告)号:US06240098B1

    公开(公告)日:2001-05-29

    申请号:US09011477

    申请日:1998-02-20

    CPC classification number: H04W88/08 H04B7/04 H04B7/0617 H04B7/086

    Abstract: A method and apparatus for spatial multiplexing and demultiplexing of radio signals. A multichannel transmitter and receiver is integrated in a base station and coupled to an antenna array. Using digital radio signals containing previously known or non-Gaussian sequences and arranged in frames, the spatial information about each mobile unit is estimated on the basis of the signal received by the receiver for the reception and transmission frequencies. This is done by known sequences or by blind source separation methods. The respective paths of each mobile unit with the power above a predetermined threshold is isolated by spatial filtering in the presence of multiple channel paths in order to provide spatial demultiplexing. Simultaneously, the intended signal is transmitted in the direction of the main path of each mobile unit while protecting each mobile unit from signals transmitted in the direction of other mobile units by spatial filtering with cancelling constraints in order to provide spatial multiplexing.

    Abstract translation: 一种用于无线电信号的空间复用和解复用的方法和装置。 多通道发射机和接收机集成在基站中并耦合到天线阵列。 使用包含先前已知的或非高斯序列并且被布置在帧中的数字无线电信号,基于由接收机接收的用于接收和发送频率的信号来估计关于每个移动单元的空间信息。 这是通过已知的序列或通过盲源分离方法完成的。 具有高于预定阈值的功率的每个移动单元的相应路径在存在多个信道路径的情况下通过空间滤波来隔离,以便提供空间解复用。 同时,在每个移动单元的主路径的方向上发送预期信号,同时通过具有消除约束的空间滤波来保护每个移动单元不受其它移动单元的方向的信号的影响,以提供空间复用。

    Process for adjusting the transmission and reception chains of the paths by a base station of a system for radio communication between mobiles
    5.
    发明授权
    Process for adjusting the transmission and reception chains of the paths by a base station of a system for radio communication between mobiles 失效
    用于由移动台之间的无线电通信的系统的基站调整路径的发送和接收链的过程

    公开(公告)号:US06205341B1

    公开(公告)日:2001-03-20

    申请号:US08973758

    申请日:1997-12-23

    CPC classification number: H04B7/04 H04B17/11 H04B17/21

    Abstract: A process which adjusts the transmission and reception chains of the paths formed by a base station of a system for radio communication between mobiles which after calibration of the antenna base adjusts the reception chains relating to each path by distributing a first specified adjustment signal synchronously over each of the reception chains and calculating an equalization filter which inverts the transfer functions related to each reception chain. The process next adjusts the transmission chains related to each path by distributing a second specified adjustment signal synchronously over each of the transmission chains, by extracting from each of the paths a part of a transmission signal before the transmission signal is sent to the antenna base so as to re-inject that part of the transmission signal into the reception chains, and by calculating an equalization filter which inverts the transfer functions related to each transmission chain. Finally, the process receives via the equalization filters previously calculated for the reception chains reception signals originating from the antenna base, or transmits via the equalization filters previously calculated for the transmission chains the transmission signals originating from the multipath transmission/reception device.

    Abstract translation: 调整由用于移动台之间的无线电通信的系统的基站形成的路径的发送和接收链的过程,其在天线基准校准之后通过在每个路径上同步地分配第一指定的调整信号来调整与每个路径相关的接收链 并计算均衡滤波器,该均衡滤波器反转与每个接收链相关的传递函数。 该过程接下来通过在每个发送链上同步地分配第二指定调整信号,通过在发送信号被发送到天线基底之前从发送信号的一部分中提取每个路径来调整与每个路径相关的发送链,从而 将发送信号的该部分重新注入到接收链中,并且通过计算反转与每个传输链相关的传递函数的均衡滤波器。 最后,该处理经由先前针对从天线基站发送的接收链接收信号计算的均衡滤波器接收,或者经由先前为传输链路计算的均衡滤波器发送来自多径发送/接收装置的发送信号。

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