COMMUNICATIONS DEVICE WITH DISCRIMINATOR FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS
    11.
    发明申请
    COMMUNICATIONS DEVICE WITH DISCRIMINATOR FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS 有权
    具有用于产生中间频率信号的识别器的通信设备及相关方法

    公开(公告)号:US20130188962A1

    公开(公告)日:2013-07-25

    申请号:US13356773

    申请日:2012-01-24

    IPC分类号: H04B10/13

    CPC分类号: H04B10/25758

    摘要: A communications device includes a transmitter device having an optical source to generate an optical carrier signal, and a first modulator coupled to the optical source and to modulate the optical carrier signal with a radio frequency (RF) input signal, and an optical waveguide coupled to the transmitter device. The communications device includes a receiver device coupled to the optical waveguide and including a second modulator to further modulate the modulated optical carrier signal with a local oscillator (LO) signal, a frequency modulation-phase modulation (FM-PM) discriminator coupled to the second modulator and to convert the modulated optical carrier signal to an intensity modulated optical carrier signal based upon the LO signal, and an optical-to-electrical converter coupled to the FM-PM discriminator and to generate an intermediate frequency (IF) signal based upon the intensity modulated optical carrier signal.

    摘要翻译: 通信设备包括具有用于产生光载波信号的光源的发射机设备,以及耦合到光源并利用射频(RF)输入信号调制光载波信号的第一调制器,以及耦合到 发射机设备。 通信设备包括耦合到光波导的接收机设备,并且包括第二调制器,以用本地振荡器(LO)信号进一步调制调制的光载波信号,耦合到第二调制器的调频相位调制(FM-PM)鉴别器 并且基于LO信号将经调制的光载波信号转换为强度调制的光载波信号,以及耦合到FM-PM鉴别器的光电转换器,并基于该信号产生中频(IF)信号 强度调制光载波信号。

    Radio frequency (RF) signal receiver using optical processing and associated methods
    13.
    发明授权
    Radio frequency (RF) signal receiver using optical processing and associated methods 有权
    射频(RF)信号接收机采用光学处理及相关方法

    公开(公告)号:US08116638B2

    公开(公告)日:2012-02-14

    申请号:US11755478

    申请日:2007-05-30

    摘要: A signal receiver, such as an RF-matched filter receiver, includes an optical source (e.g. a mode-locked laser) providing an optical signal, and a first optical modulator to modulate the optical signal with a received RF signal and provide a modulated optical signal. A second optical modulator modulates the modulated optical signal with a reference signal and provides a twice modulated optical signal. The modulators may be Mach-Zehnder Modulators (MZM) and/or Indium Phosphide (InP) modulators. An optical detector receives the twice modulated optical signal and provides a detected signal, and a processing unit receives the detected signal and extracts or measures cross-correlation between the received RF signal and the reference signal.

    摘要翻译: 诸如RF匹配滤波器接收器的信号接收器包括提供光信号的光源(例如锁模激光器)和用接收的RF信号调制光信号的第一光调制器,并提供调制光 信号。 第二光调制器用参考信号调制调制的光信号,并提供两次调制的光信号。 调制器可以是马赫 - 曾德调制器(MZM)和/或磷化铟(InP)调制器。 光检测器接收两次调制的光信号并提供检测信号,处理单元接收检测信号并提取或测量接收的RF信号与参考信号之间的互相关。

    Wideband RF photonic link for dynamic co-site interference mitigation
    14.
    发明授权
    Wideband RF photonic link for dynamic co-site interference mitigation 有权
    宽带RF光子链路,用于动态协同干扰减轻

    公开(公告)号:US08098991B2

    公开(公告)日:2012-01-17

    申请号:US12194558

    申请日:2008-08-20

    IPC分类号: H04B10/00

    CPC分类号: H04B10/2575 H04B2210/006

    摘要: A method is provided for co-site interference mitigation in an RF communication system. Spectral nulls created in an optical domain may be used to mitigate interfering signals in an RF signal. The method includes: receiving an RF input signal via an antenna; generating two optical signals that are each modulated using the RF signal; creating a phase delay in one of the two optical signals that corresponds with a spectral null at a frequency of an interfering signal; converting the two optical signals into two corresponding electrical signals and combining the two electrical signals to create spectral nulls via interference between the two signals and form a mitigated output signal. In this way, the spectral null offsets the amplitude of the interfering signal, thereby reducing the signal strength of the interfering signal.

    摘要翻译: 提供了一种用于RF通信系统中的协同干扰减轻的方法。 在光域中创建的光谱空值可以用于减轻RF信号中的干扰信号。 该方法包括:经由天线接收RF输入信号; 产生使用RF信号调制的两个光信号; 在与干扰信号的频率处的频谱零点相对应的两个光信号之一中产生相位延迟; 将两个光信号转换成两个对应的电信号,并组合两个电信号以通过两个信号之间的干扰产生频谱零点,并形成减轻的输出信号。 以这种方式,频谱零点抵消干扰信号的幅度,从而降低干扰信号的信号强度。

    Electro-optic communications device with frequency conversion and related methods
    15.
    发明授权
    Electro-optic communications device with frequency conversion and related methods 有权
    具有变频和相关方法的电光通讯装置

    公开(公告)号:US08842992B2

    公开(公告)日:2014-09-23

    申请号:US13414237

    申请日:2012-03-07

    IPC分类号: H04B10/14 H04B10/18

    CPC分类号: H04B10/00 H04B2210/006

    摘要: A communications device includes a transmitter device having an optical source configured to generate an optical carrier signal, a first E/O modulator coupled to the optical source and configured to modulate the optical carrier signal with an input signal having a first frequency, and a second E/O modulator coupled to the optical source and configured to modulate the optical carrier signal with a reference signal. The communications device includes an optical waveguide coupled to the transmitter device, and a receiver device coupled to the optical waveguide and including an O/E converter coupled to the optical waveguide and configured to generate an output signal comprising a replica of the input signal at a second frequency based upon the reference signal.

    摘要翻译: 通信设备包括具有被配置为产生光载波信号的光源的发射机设备,耦合到光源并被配置为用具有第一频率的输入信号调制光载波信号的第一E / O调制器,以及第二 E / O调制器耦合到光源并被配置为用参考信号调制光载波信号。 通信设备包括耦合到发射机设备的光波导和耦合到光波导的接收机设备,并且包括耦合到光波导的O / E转换器,并且被配置为生成包括输入信号的副本的输出信号 基于参考信号的第二频率。

    ELECTRO-OPTIC COMMUNICATIONS DEVICE WITH FREQUENCY CONVERSION AND RELATED METHODS
    16.
    发明申请
    ELECTRO-OPTIC COMMUNICATIONS DEVICE WITH FREQUENCY CONVERSION AND RELATED METHODS 有权
    具有频率转换的电光通信设备及相关方法

    公开(公告)号:US20130236187A1

    公开(公告)日:2013-09-12

    申请号:US13414237

    申请日:2012-03-07

    IPC分类号: H04B10/14

    CPC分类号: H04B10/00 H04B2210/006

    摘要: A communications device includes a transmitter device having an optical source configured to generate an optical carrier signal, a first E/O modulator coupled to the optical source and configured to modulate the optical carrier signal with an input signal having a first frequency, and a second E/O modulator coupled to the optical source and configured to modulate the optical carrier signal with a reference signal. The communications device includes an optical waveguide coupled to the transmitter device, and a receiver device coupled to the optical waveguide and including an O/E converter coupled to the optical waveguide and configured to generate an output signal comprising a replica of the input signal at a second frequency based upon the reference signal.

    摘要翻译: 通信设备包括具有被配置为产生光载波信号的光源的发射机设备,耦合到光源并被配置为用具有第一频率的输入信号调制光载波信号的第一E / O调制器,以及第二 E / O调制器耦合到光源并被配置为用参考信号调制光载波信号。 通信设备包括耦合到发射机设备的光波导和耦合到光波导的接收机设备,并且包括耦合到光波导的O / E转换器,并且被配置为生成包括输入信号的副本的输出信号 基于参考信号的第二频率。

    COMMUNICATIONS DEVICE WITH DISCRIMINATOR AND WAVELENGTH DIVISION MULTIPLEXING FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS
    17.
    发明申请
    COMMUNICATIONS DEVICE WITH DISCRIMINATOR AND WAVELENGTH DIVISION MULTIPLEXING FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS 有权
    具有用于产生中间频率信号的分辨率和波长分段多路复用的通信设备及相关方法

    公开(公告)号:US20130188952A1

    公开(公告)日:2013-07-25

    申请号:US13356807

    申请日:2012-01-24

    IPC分类号: H04J14/02 H04J14/06

    CPC分类号: H04B10/25758 H04B2210/006

    摘要: A communications device includes a transmitter device including first and second optical sources, a first optical coupler coupled to the first and second optical sources, and a first modulator coupled to the first optical coupler and to modulate a combined carrier signal including the first and second optical carrier signals with an RF input signal. The communications device includes a receiver device having a second modulator to further modulate the modulated combined carrier signal with an LO signal, a FM-PM discriminator coupled to the second modulator and to convert the modulated combined carrier signal to an intensity modulated combined carrier signal based upon the LO signal, a second optical coupler coupled to the FM-PM discriminator and to generate first and second intensity modulated carrier signals, and an optical-to-electrical converter coupled to the second optical coupler and to generate an IF signal.

    摘要翻译: 通信设备包括发射机设备,其包括第一和第二光源,耦合到第一和第二光源的第一光耦合器,以及耦合到第一光耦合器的第一调制器,并且调制包括第一和第二光源的组合载波信号 载波信号与RF输入信号。 通信设备包括具有第二调制器的接收机设备,用于利用LO信号进一步调制经调制的组合载波信号,FM-PM鉴别器耦合到第二调制器并将调制的组合载波信号转换为基于强度调制的组合载波信号 在LO信号上,耦合到FM-PM鉴别器并产生第一和第二强度调制载波信号的第二光耦合器,以及耦合到第二光耦合器并产生IF信号的光电转换器。

    PHASED ANTENNA ARRAY WITH ELECTRO-OPTIC READOUT CIRCUIT WITH MULTIPLEXING AND RELATED METHODS
    18.
    发明申请
    PHASED ANTENNA ARRAY WITH ELECTRO-OPTIC READOUT CIRCUIT WITH MULTIPLEXING AND RELATED METHODS 有权
    具有多重和相关方法的电光读出电路的相位天线阵列

    公开(公告)号:US20130176165A1

    公开(公告)日:2013-07-11

    申请号:US13344447

    申请日:2012-01-05

    IPC分类号: G01S13/02

    CPC分类号: H01Q3/2676

    摘要: A phased antenna array includes an array of antenna elements, and an electro-optic (EO) readout circuit coupled to the array of antenna elements. The EO readout circuit includes an optical source having a first wavelength division multiplexer (WDM) configured to generate an optical carrier signal including beam carrier wavelengths, a first EO modulator configured to modulate a signal from an antenna element based upon the optical carrier signal, a second WDM coupled downstream from the first EO modulator, and optical-to-electrical converters coupled downstream from the second WDM. The second WDM is configured to multiplex each modulated beam carrier wavelength to a respective optical-to-electrical converter.

    摘要翻译: 相控天线阵列包括天线元件阵列和耦合到天线元件阵列的电光(EO)读出电路。 EO读出电路包括具有被配置为生成包括波束载波波长的光载波信号的第一波分多路复用器(WDM)的光源,配置为基于光载波信号调制来自天线元件的信号的第一EO调制器, 第二WDM从第一EO调制器耦合到下游,以及耦合到第二WDM下游的光电转换器。 第二WDM被配置为将每个调制的波束载波波长复用到相应的光 - 电转换器。

    WIDEBAND RF PHOTONIC LINK FOR DYNAMIC CO-SITE INTERFERENCE MITIGATION
    19.
    发明申请
    WIDEBAND RF PHOTONIC LINK FOR DYNAMIC CO-SITE INTERFERENCE MITIGATION 有权
    用于动态协同干扰减轻的宽带射频光电链路

    公开(公告)号:US20100046952A1

    公开(公告)日:2010-02-25

    申请号:US12194558

    申请日:2008-08-20

    IPC分类号: H04B10/00

    CPC分类号: H04B10/2575 H04B2210/006

    摘要: A method is provided for co-site interference mitigation in an RF communication system. Spectral nulls created in an optical domain may be used to mitigate interfering signals in an RF signal. The method includes: receiving an RF input signal via an antenna; generating two optical signals that are each modulated using the RF signal; creating a phase delay in one of the two optical signals that corresponds with a spectral null at a frequency of an interfering signal; converting the two optical signals into two corresponding electrical signals and combining the two electrical signals to create spectral nulls via interference between the two signals and form a mitigated output signal. In this way, the spectral null offsets the amplitude of the interfering signal, thereby reducing the signal strength of the interfering signal.

    摘要翻译: 提供了一种用于RF通信系统中的协同干扰减轻的方法。 在光域中创建的光谱空值可以用于减轻RF信号中的干扰信号。 该方法包括:经由天线接收RF输入信号; 产生使用RF信号调制的两个光信号; 在与干扰信号的频率处的频谱零点相对应的两个光信号之一中产生相位延迟; 将两个光信号转换成两个对应的电信号,并组合两个电信号以通过两个信号之间的干扰产生频谱零点,并形成减轻的输出信号。 以这种方式,频谱零点抵消干扰信号的幅度,从而降低干扰信号的信号强度。

    Communications device with discriminator for generating intermediate frequency signal and related methods
    20.
    发明授权
    Communications device with discriminator for generating intermediate frequency signal and related methods 有权
    具有用于产生中频信号的鉴频器的通信装置及相关方法

    公开(公告)号:US08526817B2

    公开(公告)日:2013-09-03

    申请号:US13356773

    申请日:2012-01-24

    IPC分类号: H04J14/00 H04B10/04 H04B10/12

    CPC分类号: H04B10/25758

    摘要: A communications device includes a transmitter device having an optical source to generate an optical carrier signal, and a first modulator coupled to the optical source and to modulate the optical carrier signal with a radio frequency (RF) input signal, and an optical waveguide coupled to the transmitter device. The communications device includes a receiver device coupled to the optical waveguide and including a second modulator to further modulate the modulated optical carrier signal with a local oscillator (LO) signal, a frequency modulation-phase modulation (FM-PM) discriminator coupled to the second modulator and to convert the modulated optical carrier signal to an intensity modulated optical carrier signal based upon the LO signal, and an optical-to-electrical converter coupled to the FM-PM discriminator and to generate an intermediate frequency (IF) signal based upon the intensity modulated optical carrier signal.

    摘要翻译: 通信设备包括具有用于产生光载波信号的光源的发射机设备,以及耦合到光源并利用射频(RF)输入信号调制光载波信号的第一调制器,以及耦合到 发射机设备。 通信设备包括耦合到光波导的接收机设备,并且包括第二调制器,以用本地振荡器(LO)信号进一步调制调制的光载波信号,耦合到第二调制器的调频相位调制(FM-PM)鉴别器 并且基于LO信号将经调制的光载波信号转换为强度调制的光载波信号,以及耦合到FM-PM鉴别器的光电转换器,并基于该信号产生中频(IF)信号 强度调制光载波信号。