APPARATUS AND METHOD FOR CONTROLLING THE GENERATION OF A RADIO FREQUENCY TRANSMIT SIGNAL
    35.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING THE GENERATION OF A RADIO FREQUENCY TRANSMIT SIGNAL 审中-公开
    用于控制无线电频率发射信号的产生的装置和方法

    公开(公告)号:US20160278019A1

    公开(公告)日:2016-09-22

    申请号:US15043764

    申请日:2016-02-15

    Abstract: An apparatus for controlling the generation of a radio frequency transmit signal includes a control module configured to control at least one power amplifier stimulus of a power amplifier module based on information related to at least one intermodulation product caused during generation of an amplified radio frequency transmit signal amplified by the power amplifier module. The amplified radio frequency transmit signal has at least two spectral clusters allocated for data transmission.

    Abstract translation: 一种用于控制射频发射信号的产生的装置包括控制模块,该控制模块被配置为基于与放大的射频发射信号的产生期间产生的至少一个互调产物相关的信息来控制功率放大器模块的至少一个功率放大器激励 由功率放大器模块放大。 放大的射频发射信号具有分配用于数据传输的至少两个频谱簇。

    Receive frequency band interference protection system using predistortion linearization
    37.
    发明授权
    Receive frequency band interference protection system using predistortion linearization 有权
    接收使用预失真线性化的频段干扰保护系统

    公开(公告)号:US08102940B1

    公开(公告)日:2012-01-24

    申请号:US11826494

    申请日:2007-07-16

    CPC classification number: H04B1/0475 H03F1/3241 H03F2200/451 H03F2201/3236

    Abstract: A receive frequency band interference protection system includes an input terminal for receiving an input signal and a dividing coupler coupled to the input terminal. The dividing coupler is configured to divide the input signal into a first signal and a second signal. The system further includes a first signal path and a second signal path. The first signal path includes a delay, and it is coupled to the dividing coupler and configured to receive the first signal. The second signal path is coupled to the dividing coupler and configured to receive the second signal. The second signal path includes an attenuator coupled to the dividing coupler and a predistortion linearizer coupled to the attenuator. The system further includes a combining coupler and an output terminal. The combining coupler is coupled to the first signal path and the second signal path. The combining coupler is configured to obtain a sum of the respective outputs of the first signal path and the second signal path. The output terminal is coupled to the combining coupler and configured to send out the sum.

    Abstract translation: 接收频带干扰保护系统包括用于接收输入信号的输入端和耦合到输入端的分频耦合器。 分配耦合器被配置为将输入信号划分为第一信号和第二信号。 该系统还包括第一信号路径和第二信号路径。 第一信号路径包括延迟,并且其耦合到分路耦合器并且被配置为接收第一信号。 第二信号路径被耦合到分离耦合器并且被配置为接收第二信号。 第二信号路径包括耦合到分路耦合器的衰减器和耦合到衰减器的预失真线性化电路。 该系统还包括组合耦合器和输出端子。 组合耦合器耦合到第一信号路径和第二信号路径。 组合耦合器被配置为获得第一信号路径和第二信号路径的相应输出的和。 输出端耦合到组合耦合器并被配置为发出总和。

    Method for clipping a wideband radio signal and corresponding transmitter
    38.
    发明授权
    Method for clipping a wideband radio signal and corresponding transmitter 有权
    用于限幅宽带无线电信号和相应发射机的方法

    公开(公告)号:US07466966B2

    公开(公告)日:2008-12-16

    申请号:US09970694

    申请日:2001-10-05

    Applicant: Luc Dartois

    Inventor: Luc Dartois

    CPC classification number: H03F1/3247 H03F2200/102 H03F2201/3236

    Abstract: A method for clipping a wideband signal in order to eliminate signal overshots having an amplitude above a predefined threshold before submitting the wideband signal to a power amplifier. The method subtracts, from the wideband signal, filtered pulses in phase with the wideband signal, each filtered pulse corresponding to an overshot, and the amplitude of each filtered pulse being dependant on the amplitude of the corresponding overshot and on the predefined threshold. The subtraction step is repeated at least twice on the wideband signal.

    Abstract translation: 一种用于削波宽带信号的方法,以便在将宽带信号提交给功率放大器之前消除具有高于预定义阈值的幅度的信号过冲。 该方法从宽带信号中减去与宽带信号同相的滤波脉冲,每个滤波的脉冲对应于超频,并且每个滤波的脉冲的幅度取决于相应的超频的幅度和预定阈值。 减法步骤在宽带信号上重复至少两次。

    Clipping of transmission signal
    39.
    发明申请
    Clipping of transmission signal 有权
    剪切传输信号

    公开(公告)号:US20060154622A1

    公开(公告)日:2006-07-13

    申请号:US11074006

    申请日:2005-03-08

    Applicant: Olli Piirainen

    Inventor: Olli Piirainen

    Abstract: A transmitter clips a transmission signal before transmission in order to reduce the strength of at least one peak of the transmission signal exceeding a predetermined threshold. The transmitter includes a clipper having a minimizer, a filter and an adder. The minimizer minimizes of a cost function with respect to an optimization signal, the cost function having weighted terms as a function of the optimization signal. The terms relate to an effective modulation distortion and an effective overshoot exceeding the predetermined threshold. The filter forms a clipping signal by filtering the optimization signal formed as a result of the minimization according to the spectrum emission mask requirements of the radio system. The adder subtracts the clipping signal from the transmission signal.

    Abstract translation: 发射机在传输之前剪切传输信号,以便减少超过预定阈值的传输信号的至少一个峰值的强度。 发射机包括具有最小化器,滤波器和加法器的限幅器。 最小化器相对于优化信号最小化成本函数,成本函数具有作为优化信号的函数的加权项。 这些术语涉及超过预定阈值的有效调制失真和有效超调。 滤波器通过根据无线电系统的频谱发射掩模要求对作为最小化的结果形成的优化信号进行滤波来形成限幅信号。 加法器从发送信号中减去削波信号。

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