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    Electromagnetic spectrum management system
    3.
    发明授权
    Electromagnetic spectrum management system 有权

    公开(公告)号：US09794021B2

    公开(公告)日：2017-10-17

    申请号：US15414519

    申请日：2017-01-24

    Applicant: National Security Technologies, LLC

    Inventor： Douglas R. Seastrand

    IPC: H04B1/40 ,  H04K3/00 ,  H04B1/69 ,  H04B1/04

    CPC classification number: H04K3/825 ,  H04B1/0007 ,  H04B1/04 ,  H04B1/69 ,  H04B14/04 ,  H04B2001/0416 ,  H04B2201/70727 ,  H04K3/41 ,  H04K3/42 ,  H04K3/43

    Abstract: A system for transmitting a wireless countermeasure signal to disrupt third party communications is disclosed that include an antenna configured to receive wireless signals and transmit wireless counter measure signals such that the wireless countermeasure signals are responsive to the received wireless signals. A receiver processes the received wireless signals to create processed received signal data while a spectrum control module subtracts known source signal data from the processed received signal data to generate unknown source signal data. The unknown source signal data is based on unknown wireless signals, such as enemy signals. A transmitter is configured to process the unknown source signal data to create countermeasure signals and transmit a wireless countermeasure signal over the first antenna or a second antenna to thereby interfere with the unknown wireless signals.

    Interference suppression in a spread spectrum communications system using non-linear frequency domain excision
    5.
    发明授权
    Interference suppression in a spread spectrum communications system using non-linear frequency domain excision 失效
    使用非线性频域切除的扩频通信系统中的干扰抑制

    公开(公告)号：US06868114B2

    公开(公告)日：2005-03-15

    申请号：US09919121

    申请日：2001-07-30

    Applicant: Theodore Bially ,  Paul F. McKenzie

    Inventor： Theodore Bially ,  Paul F. McKenzie

    IPC: G06F17/14 ,  H04B1/71 ,  H04K1/00 ,  H04B1/69

    CPC classification number: H04B1/7102 ,  H04B2201/70727

    Abstract: In a frequency-domain excision system for a wide band receiver, a window function is applied to blocks of received signal samples and a transform function is applied to the windowed blocks. Each block of frequency-domain coefficients from the transform function is morphologically filtered to generate a threshold function representing an estimate of the spectrum of the desired wide band signal, and a non-linear gain function is applied to the coefficients. The gain function has a fixed-gain region for input values less than a threshold value from the threshold function, an excision region for input values greater than a multiple of the threshold value, and a soft limiting region between the fixed-gain region and the excision region. The inverse transform is performed on the excised blocks of coefficients, and an overlap-eliminating central portion of the inverse of the window function is applied to the resulting blocks of signal samples.

    Abstract translation: 在用于宽带接收机的频域切除系统中，将窗函数应用于接收信号样本的块，并将变换函数应用于窗口块。 来自变换函数的每个频域系数块被形态滤波以产生表示所需宽带信号的频谱的估计的阈值函数，并且将非线性增益函数应用于系数。 增益函数具有用于小于阈值函数的阈值的输入值的固定增益区域，用于大于阈值的倍数的输入值的切除区域，以及固定增益区域与固定增益区域之间的软限制区域 切除区。 对所切除的系数块执行逆变换，并且将窗函数的逆的重叠消除中心部分应用于所得到的信号样本块。

    Electromagnetic spectrum management system
    6.
    发明授权
    Electromagnetic spectrum management system 有权
    电磁频谱管理系统

    公开(公告)号：US09559803B2

    公开(公告)日：2017-01-31

    申请号：US15090472

    申请日：2016-04-04

    Applicant: National Security Technologies, LLC

    Inventor： Douglas R. Seastrand

    IPC: H04B1/40 ,  H04K3/00 ,  H04B14/04 ,  H04B1/00

    CPC classification number: H04K3/825 ,  H04B1/0007 ,  H04B1/04 ,  H04B1/69 ,  H04B14/04 ,  H04B2001/0416 ,  H04B2201/70727 ,  H04K3/41 ,  H04K3/42 ,  H04K3/43

    Abstract: A system for transmitting a wireless countermeasure signal to disrupt third party communications is disclosed that include an antenna configured to receive wireless signals and transmit wireless counter measure signals such that the wireless countermeasure signals are responsive to the received wireless signals. A receiver processes the received wireless signals to create processed received signal data while a spectrum control module subtracts known source signal data from the processed received signal data to generate unknown source signal data. The unknown source signal data is based on unknown wireless signals, such as enemy signals. A transmitter is configured to process the unknown source signal data to create countermeasure signals and transmit a wireless countermeasure signal over the first antenna or a second antenna to thereby interfere with the unknown wireless signals.

    Abstract translation: 公开了一种用于发送无线对策信号以破坏第三方通信的系统，其包括被配置为接收无线信号并发送无线对抗测量信号的天线，使得无线对策信号响应于所接收的无线信号。 接收机处理所接收的无线信号以产生经处理的接收信号数据，而频谱控制模块从经处理的接收信号数据中减去已知的源信号数据，以产生未知的源信号数据。 未知的源信号数据是基于未知的无线信号，如敌方信号。 发射机被配置为处理未知源信号数据以产生对策信号，并通过第一天线或第二天线发送无线对抗信号，从而干扰未知的无线信号。

    Interference suppression in a spread spectrum communications system using non-linear frequency domain excision
    8.
    发明申请
    Interference suppression in a spread spectrum communications system using non-linear frequency domain excision 失效
    使用非线性频域切除的扩频通信系统中的干扰抑制

    公开(公告)号：US20020094022A1

    公开(公告)日：2002-07-18

    申请号：US09919121

    申请日：2001-07-30

    Applicant: THE TITAN CORPORATION

    Inventor： Theodore Bially ,  Paul F. McKenzie

    IPC: H04K001/00

    CPC classification number: H04B1/7102 ,  H04B2201/70727

    Abstract: In a frequency-domain excision system for a wide band receiver, a window function is applied to blocks of received signal samples and a transform function is applied to the windowed blocks. Each block of frequency-domain coefficients from the transform function is morphologically filtered to generate a threshold function representing an estimate of the spectrum of the desired wide band signal, and a non-linear gain function is applied to the coefficients. The gain function has a fixed-gain region for input values less than a threshold value from the threshold function, an excision region for input values greater than a multiple of the threshold value, and a soft limiting region between the fixed-gain region and the excision region. The inverse transform is performed on the excised blocks of coefficients, and an overlap-eliminating central portion of the inverse of the window function is applied to the resulting blocks of signal samples.

    Abstract translation: 在用于宽带接收机的频域切除系统中，将窗函数应用于接收信号样本的块，并将变换函数应用于窗口块。 来自变换函数的每个频域系数块被形态滤波以产生表示所需宽带信号的频谱的估计的阈值函数，并且将非线性增益函数应用于系数。 增益函数具有用于小于阈值函数的阈值的输入值的固定增益区域，用于大于阈值的倍数的输入值的切除区域，以及固定增益区域与固定增益区域之间的软限制区域 切除区。 对所切除的系数块执行逆变换，并且将窗函数的逆的重叠消除中心部分应用于所得到的信号样本块。

    CHIP X2 CORRELATION HYPOTHESES USING CHIP X1 SAMPLES
    9.
    发明申请
    CHIP X2 CORRELATION HYPOTHESES USING CHIP X1 SAMPLES 审中-公开
    使用芯片X1样品的芯片X2相关假设

    公开(公告)号：WO2013016710A1

    公开(公告)日：2013-01-31

    申请号：PCT/US2012/048724

    申请日：2012-07-27

    Applicant: QUALCOMM INCORPORATED ,  KHANDEKAR, Aamod D. ,  FERTONANI, Dario ,  GUMMADI, Srikanth

    Inventor： KHANDEKAR, Aamod D. ,  FERTONANI, Dario ,  GUMMADI, Srikanth

    IPC: H04B1/7075

    CPC classification number: H04B1/7075 ,  H04B2001/70724 ,  H04B2201/70707 ,  H04B2201/70713 ,  H04B2201/70727

    Abstract: A UE may store received samples of a wireless signal at cx1 to reduce memory usage, but then may correlate those samples with cx2 timing hypotheses to improve performance. The received sequence is resampled at cx2 instead of cx1. The UE still performs the correlation of the cx2 timing hypotheses for the performance gain, but the reference waveform is resampled with cx2 time offset. A Fast Fourier Transform (FFT) may be taken of the received and reference waveforms. In the frequency domain, resampling may be performed by multiplying the FFT of the reference waveform by a phase ramp a pointwise multiplication in the frequency domain with a constant magnitude sequence whose phase varies linearly.

    Abstract translation: UE可以将接收到的无线信号的采样存储在cx1以减少存储器使用，但是然后可以将这些采样与cx2定时假设相关联以提高性能。 接收到的序列在cx2而不是cx1重采样。 UE仍然执行性能增益的cx2定时假设的相关性，但是参考波形用cx2时间偏移重采样。 可以对接收和参考波形进行快速傅里叶变换（FFT）。 在频域中，重采样可以通过将参考波形的FFT乘以相位斜坡来执行，该相位斜坡是频域中的逐点乘法与其相位线性变化的恒定幅度序列。

    MODULATEUR AVEC MARQUAGE DE POLARISATION
    10.
    发明申请
    MODULATEUR AVEC MARQUAGE DE POLARISATION 审中-公开
    具有偏振标记的调制器

    公开(公告)号：WO2011039442A1

    公开(公告)日：2011-04-07

    申请号：PCT/FR2010/051914

    申请日：2010-09-15

    Applicant: ALCATEL LUCENT ,  SALSI, Massimiliano ,  RENAUDIER, Jeremie

    Inventor： SALSI, Massimiliano ,  RENAUDIER, Jeremie

    IPC: H04B10/148 ,  H04B10/155 ,  H04J14/06

    CPC classification number: H04B10/5561 ,  H04B10/2575 ,  H04B10/60 ,  H04B10/6166 ,  H04B2201/70727 ,  H04B2210/074 ,  H04B2210/075 ,  H04J14/002 ,  H04J14/06

    Abstract: Modulateur avec marquage de polarisation comportant deux ports d'entrée pour recevoir deux signaux optiques à une longueur d'onde et présentant des états de polarisation optique essentiellement perpendiculaires, capable de moduler en phase ces signaux avec des signaux de données et de les combiner en polarisation, caractérisé en ce qu'il comporte une source de surmodulation de phase pour surmoduler la phase de l'un desdits deux signaux optiques, ladite surmodulation de phase présentant une fréquence demodulation sensiblement plus faible que la fréquence de modulation desdits signaux de données. Une méthode et un récepteur cohérents ont également divulgués.

    Abstract translation: 具有偏振标记的调制器包括两个输入端口，用于接收波长上的两个光信号并呈现出基本垂直的光学偏振状态，其能够利用数据信号对这些信号进行相位调制，并将它们偏振地组合在一起，其特征在于： 包括用于过调制所述两个光信号之一的相位的相位过调制源，所述相位过调制表现出比所述数据信号的调制频率基本上更低的解调频率。 还公开了一种相干方法和接收机。

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