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    Method for estimating the polarization ellipticity of an antenna response signal to an incident electromagnetic wave
    8.
    发明授权
    Method for estimating the polarization ellipticity of an antenna response signal to an incident electromagnetic wave 有权
    用于估计天线响应信号对入射电磁波的偏振椭圆率的方法

    公开(公告)号：US08773315B2

    公开(公告)日：2014-07-08

    申请号：US13128396

    申请日：2009-11-04

    申请人： Arnaud Lecca ,  Eric Merlet ,  Jean-Christophe Mesnage ,  Jean-Luc Rogier

    发明人： Arnaud Lecca ,  Eric Merlet ,  Jean-Christophe Mesnage ,  Jean-Luc Rogier

    IPC分类号： H01Q1/24

    CPC分类号： G01S3/085 ,  G01S3/023 ,  H01Q7/00 ,  H01Q21/205

    摘要： A method is provided for estimating the polarization ellipticity of an antenna response signal to an incident electromagnetic wave received on a crossed-loop antenna or an Adcock antenna array. The method comprises at least the following steps: measuring the phase offset Δφ between the signals acquired respectively on the cosine and sine path of the antenna; measuring the ratio R between the amplitudes of the signals acquired respectively on the cosine and sine path of the antenna; determining the ellipticity angle τ based on the phase offset Δφ and on the ratio R. The invention applies notably to the discrimination of ionospheric waves from ground and/or sea waves, in particular for a surveillance, eavesdropping, or goniometry system using HF band signals.

    摘要翻译： 提供一种用于估计天线响应信号对在交叉环形天线或Adcock天线阵列上接收的入射电磁波的偏振椭圆率的方法。 该方法至少包括以下步骤：测量相位偏移＆Dgr; 在分别在天线的余弦和正弦路径上获取的信号之间; 测量分别在天线的余弦和正弦路径上获取的信号的振幅之间的比率R; 基于相位偏移＆Dgr;＆phgr;确定椭圆度角τ; 和比例R.本发明特别适用于区分来自地面和/或海浪的电离层波，特别是用于使用HF频带信号的监视，窃听或测角系统。

    Method For Estimating The Polarization Ellipticity Of An Antenna Response Signal To An Incident Electromagnetic Wave
    9.
    发明申请
    Method For Estimating The Polarization Ellipticity Of An Antenna Response Signal To An Incident Electromagnetic Wave 有权
    用于估计入射电磁波的天线响应信号的极化椭圆度的方法

    公开(公告)号：US20120127046A1

    公开(公告)日：2012-05-24

    申请号：US13128396

    申请日：2009-11-04

    申请人： Arnaud Lecca ,  Eric Merlet ,  Jean-Christophe Mesnage ,  Jean-Luc Rogier

    发明人： Arnaud Lecca ,  Eric Merlet ,  Jean-Christophe Mesnage ,  Jean-Luc Rogier

    IPC分类号： G01R29/08

    CPC分类号： G01S3/085 ,  G01S3/023 ,  H01Q7/00 ,  H01Q21/205

    摘要： A method is provided for estimating the polarization ellipticity of an antenna response signal to an incident electromagnetic wave received on a crossed-loop antenna or an Adcock antenna array. The method comprises at least the following steps: measuring the phase offset Δφ between the signals acquired respectively on the cosine and sine path of the antenna; measuring the ratio R between the amplitudes of the signals acquired respectively on the cosine and sine path of the antenna; determining the ellipticity angle τ based on the phase offset Δφ and on the ratio R. The invention applies notably to the discrimination of ionospheric waves from ground and/or sea waves, in particular for a surveillance, eavesdropping, or goniometry system using HF band signals.

    摘要翻译： 提供一种用于估计天线响应信号对在交叉环形天线或Adcock天线阵列上接收的入射电磁波的偏振椭圆率的方法。 该方法至少包括以下步骤：测量相位偏移＆Dgr; 在分别在天线的余弦和正弦路径上获取的信号之间; 测量分别在天线的余弦和正弦路径上获取的信号的振幅之间的比率R; 基于相位偏移＆Dgr;＆phgr;确定椭圆度角τ; 和比例R.本发明特别适用于区分来自地面和/或海浪的电离层波，特别是用于使用HF频带信号的监视，窃听或测角系统。

    Sky wave direction finder
    10.
    发明授权
    Sky wave direction finder 失效
    天波方向探测器

    公开(公告)号：US5032844A

    公开(公告)日：1991-07-16

    申请号：US326356

    申请日：1989-03-21

    申请人： Jackie E. Hipp ,  Douglas N. Travers

    发明人： Jackie E. Hipp ,  Douglas N. Travers

    IPC分类号： G01S3/08 ,  H01Q7/00 ,  H01Q21/26

    CPC分类号： G01S3/085 ,  H01Q21/26 ,  H01Q7/00

    摘要： A system using two magnetic quadrupole antennas, two magnetic dipole antennas and means for processing the respective antenna signal outputs provides unambiguous estimates of elevation and polarization for an incident RF signal. The system uses an efficient procedure to process the signals from a small aperture array of fixed loop elements for the purpose of providing radio direction of arrival information that is free of intrinsic polarization error. The directional information is developed by performing a simultaneous arctangent operation on signals output from the antennas or as the measured phase difference between a quadrature summed quadrupole output and a quadrature summed dipole output compensated by a phase offset between the dipole antennas and the quadrupole antennas.

    摘要翻译： 使用两个四极四极天线的系统，两个磁偶极子天线和用于处理各个天线信号输出的装置提供对入射RF信号的仰角和极化的明确估计。 该系统使用有效的过程来处理来自固定环路元件的小孔径阵列的信号，以便提供无固有偏振误差的无线电到达信息方向。 通过对从天线输出的信号进行同时反正切运算，或者通过偶极天线和四极天线之间的相位偏移补偿的正交相加四极输出和正交相加偶极输出之间的测量相位差来进行方向信息的开发。