公开(公告)号：US07295961B2

公开(公告)日：2007-11-13

申请号：US10712706

申请日：2003-11-12

Applicant: David E. Root ,  Nicholas B. Tuffilaro ,  John Wood ,  Jan Verspecht

Inventor： David E. Root ,  Nicholas B. Tuffilaro ,  John Wood ,  Jan Verspecht

IPC: G06F17/50 ,  G06F17/10 ,  G01R13/00

CPC classification number: G06F17/5036

Abstract: The present invention includes a method for generating a model of a circuit having an input port and an output port. The method determines an amplitude for current leaving the output port at a frequency ωk when a signal that includes a carrier at ωj modulated by a signal Vj(t) is input to the input port, wherein ωk is a harmonic of ωj. The determined amplitude is used to determine values for a set of constants, ak, such that a function fk(V,ak) provides an estimate of the current, Ik(t), leaving the output port at a frequency ωk when a signal having the form V ⁡ ( t ) = Re ⁢ ∑ k = 1 , H ⁢ V k ⁡ ( t ) ⁢ exp ⁡ ( jω k ⁢ t ) is input to the input port. Here Vk(t) is a component of a set of values V. The fk(V,ak) are used to provide a simulator component adapted for use in a circuit simulator.

公开(公告)号：US20060235638A1

公开(公告)日：2006-10-19

申请号：US11339401

申请日：2006-01-26

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G06F19/00

CPC classification number: G01R23/20 ,  G01R27/28

Abstract: Novel excitation signals are specifically designed for testing a nonlinear device-under-test such that all of the desired intermodulation products are measurable after being converted by a sampling frequency convertor. This is achieved by using excitation frequencies which are equal to an integer multiple of the sampling frequency of the sampling frequency convertor plus or minus small frequency offsets. The offset frequencies are carefully choosen such that the frequencies of all the significant intermodulation products after being converted by the sampling frequency convertor are within the bandwidth of the sampling frequency convertor output.

Abstract translation: 新的激励信号被专门设计用于测试非线性器件测试，使得所有的期望的互调产物在被采样频率转换器转换之后是可测量的。 这是通过使用等于采样频率转换器的采样频率加或减小频率偏移的整数倍的激励频率来实现的。 仔细选择偏移频率，使得由采样频率转换器转换后的所有有效互调产物的频率在采样变频器输出的带宽内。

公开(公告)号：US20130138416A1

公开(公告)日：2013-05-30

申请号：US13307311

申请日：2011-11-30

Applicant: Jan VERSPECHT

Inventor： Jan VERSPECHT

IPC: G06F17/50

CPC classification number: H04B17/391 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/20 ,  H03F3/245 ,  H03F2200/336

Abstract: A method and system for predistorting signals provides a test signal to model a non-linear component. Model kernels representative of static and dynamic parts of the model are extracted from an output of the non-linear component responsive to the test signal. The dynamic part represents memory effects of the non-linear component. The model kernels are then used to calculate an inverse memory model component model. An input signal is predistorted using the inverse memory model.

Abstract translation: 用于预失真信号的方法和系统提供测试信号以对非线性分量建模。 根据测试信号，从非线性分量的输出中提取代表模型的静态和动态部分的模型内核。 动态部分表示非线性分量的记忆效应。 然后使用模型内核来计算反向内存模型组件。 使用反相存储器模型对输入信号进行预失真。

公开(公告)号：US07268530B1

公开(公告)日：2007-09-11

申请号：US11337949

申请日：2006-01-24

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G01R23/20

CPC classification number: G01R23/20

Abstract: A novel method is described that enables the measurement of the phase of the spectral components generated by an harmonic phase reference generator without using a calibrated sampling oscilloscope. First one uses a vector network analyzer to measure the output reflection coefficient of an harmonic phase transfer standard and of the harmonic phase reference generator that needs to be characterized. Next one connects the transfer standard to a microwave receiver and one measures the spectral components that are generated by the transfer standard. One then connects the harmonic phase reference generator to be characterized to the microwave receiver. The spectral components of the harmonic phase reference generator to be characterized are calculated by using the spectrum of the transfer standard as measured by the receiver, the spectrum of the harmonic phase reference generator to be characterized as measured by the receiver and the known spectrum of the transfer standard.

Abstract translation: 描述了一种新颖的方法，其能够测量由谐波相位参考发生器产生的频谱分量的相位，而不使用校准的采样示波器。 首先使用矢量网络分析仪来测量谐波相位传输标准和需要表征的谐波相位参考发生器的输出反射系数。 接下来将传输标准连接到微波接收器，并且测量传输标准产生的频谱分量。 然后将要表征的谐波相位参考发生器连接到微波接收器。 通过使用由接收机测量的传输标准的频谱来计算要表征的谐波相位参考发生器的频谱分量，由接收机测量的要表征的谐波相位参考发生器的频谱和已知的频谱 转让标准。

公开(公告)号：US07231311B2

公开(公告)日：2007-06-12

申请号：US11339401

申请日：2006-01-26

Applicant: Jan Verspecht

Inventor： Jan Verspecht

IPC: G06G7/19

CPC classification number: G01R23/20 ,  G01R27/28

Abstract: Novel excitation signals are specifically designed for testing a high-frequency mixer such that all of the desired intermodulation products are measurable after being converted by a sampling frequency converter. This is achieved by using excitation frequencies which are equal to an integer multiple of the sampling frequency of the sampling frequency convertor plus or minus small frequency offsets. The offset frequencies are carefully choosen such that the frequencies of all the significant intermodulation products after being converted by the sampling frequency converter are within the bandwidth of the sampling frequency converter output.

Abstract translation: 新颖的激励信号被专门设计用于测试高频混频器，使得所有期望的互调产物在被采样频率转换器转换后是可测量的。 这是通过使用等于采样频率转换器的采样频率加或减小频率偏移的整数倍的激励频率来实现的。 仔细选择偏移频率，使得由采样变频器转换后的所有有效互调产物的频率在采样变频器输出的带宽内。

公开(公告)号：US20050102124A1

公开(公告)日：2005-05-12

申请号：US10712706

申请日：2003-11-12

Applicant: David Root ,  Nicholas Tuffilaro ,  John Wood ,  Jan Verspecht

Inventor： David Root ,  Nicholas Tuffilaro ,  John Wood ,  Jan Verspecht

IPC: G06F17/50

CPC classification number: G06F17/5036

Abstract: The present invention includes a method for generating a model of a circuit having an input port and an output port. The method determines an amplitude for current leaving the output port at a frequency ωk when a signal that includes a carrier at ωj modulated by a signal Vj(t) is input to the input port, wherein ωk is a harmonic of ωj. The determined amplitude is used to determine values for a set of constants, ak, such that a function fk(V,ak) provides an estimate of the current, Ik(t), leaving the output port at a frequency ωk when a signal having the form V ⁡ ( t ) = Re ⁢ ∑ k = 1 , H ⁢ V k ⁡ ( t ) ⁢ exp ⁡ ( jω k ⁢ t ) is input to the input port. Here Vk(t) is a component of a set of values V. The fk(V,ak) are used to provide a simulator component adapted for use in a circuit simulator.