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    • 3. 发明申请
    • Method And Apparatus For Controlling Adaptive Circuits
    • 用于控制自适应电路的方法和装置
    • US20070176678A1
    • 2007-08-02
    • US11734103
    • 2007-04-11
    • James Blodgett
    • James Blodgett
    • H03F1/26
    • H03F1/3235H03F2201/3212
    • A feed-forward amplifier having a signal cancellation loop including a cancellation node that includes a gain controller and a phase controller. Each controller provides a discrete tap steering signal and modulates the corresponding tap steering signal with a discrete tracer signal that takes on a preselected sequence of values. The sequence chosen so that the tracer signal is mutually orthogonal to each other tracer signal over a preselected period. A gain and phase adjuster connected to the outputs of the controllers provides a controlled gain change and phase shift in the signal cancellation loop, the magnitude of the gain change and phase shift controlled by the corresponding tap steering signals presented to the gain and phase adjuster by the controllers. A detector, the input of which is connected to the cancellation node and the output of which is connected to the controllers, outputs a measure of the envelope of the signal at the cancellation node. After the preselected period new values for the tap steering signals presented to the gain and phase adjuster by the controllers are obtained by multiplying detector output by the respective tracer signal, each over the respective preselected period, summing each resulting series of values, and changing the tap steering signals to be modulated and presented to the gain and phase adjuster in accordance with the values of the respective sums.
    • 一种具有包括消除节点的信号消除回路的前馈放大器,包括增益控制器和相位控制器。 每个控制器提供离散的抽头转向信号,并且使用采用预选序列值的离散示踪器信号来调制相应的抽头转向信号。 所选择的序列使得示踪信号在预选的周期内彼此相互正交。 连接到控制器的输出的增益和相位调节器在信号消除环路中提供受控的增益变化和相移,通过由增益和相位调节器呈现给增益和相位调节器的相应抽头转向信号控制增益变化和相位的幅度, 控制器。 检测器,其输入端连接到取消节点,其输出端连接到控制器,输出消除节点处信号包络的测量。 在预选时段之后,由控制器呈现给增益和相位调节器的抽头转向信号的新值通过将检测器输出乘以相应的示踪器信号而获得,每个在相应的预选周期内,对每个所得到的一系列值进行求和,并且将 根据相应的和的值来点击要调制的转向信号并将其呈现给增益和相位调整器。
    • 10. 发明申请
    • Apparatus and method for controlling adaptive circuits
    • 用于控制自适应电路的装置和方法
    • US20050040888A1
    • 2005-02-24
    • US10486792
    • 2002-08-12
    • James Blodgett
    • James Blodgett
    • H03F1/32H03G3/30H03F1/26
    • H03F1/3235H03F2201/3212
    • A feed-forward amplifier having a signal cancellation loop including a cancellation node that includes a gain controller and a phase controller. Each controller provides a discrete tap steering signal and modulates the corresponding tap steering signal with a discrete tracer signal that takes on a preselected sequence of values. The sequence chosen so that the tracer signal is mutually orthogonal to each other tracer signal over a preselected period. A gain and phase adjuster connected to the outputs of the controllers provides a controlled gain change and phase shift in the signal cancellation loop, the magnitude of the gain change and phase shift controlled by the corresponding tap steering signals presented to the gain and phase adjuster by the controllers. A detector, the input of which is connected to the cancellation node and the output of which is connected to the controllers, outputs a measure of the envelope of the signal at the cancellation node. After the preselected period new values for the tap steering signals presented to the gain and phase adjuster by the controllers are obtained by multiplying detector output by the respective tracer signal, each over the respective preselected period, summing each resulting series of values, and changing the tap steering signals to be modulated and presented to the gain and phase adjuster in accordance with the values of the respective sums.
    • 一种具有包括消除节点的信号消除回路的前馈放大器,包括增益控制器和相位控制器。 每个控制器提供离散的抽头转向信号,并且使用采用预选序列值的离散示踪器信号来调制相应的抽头转向信号。 所选择的序列使得示踪信号在预选的周期内彼此相互正交。 连接到控制器的输出的增益和相位调节器在信号消除环路中提供受控的增益变化和相移,通过由增益和相位调节器呈现给增益和相位调节器的相应抽头转向信号控制增益变化和相位的幅度, 控制器。 检测器,其输入端连接到取消节点,其输出端连接到控制器,输出消除节点处信号包络的测量。 在预选时段之后,由控制器呈现给增益和相位调节器的抽头转向信号的新值通过将检测器输出乘以相应的示踪器信号而获得,每个在相应的预选周期内,对每个所得到的值进行求和,并且 根据相应的和的值来点击要调制的转向信号并将其呈现给增益和相位调整器。