公开(公告)号：US07511469B2

公开(公告)日：2009-03-31

申请号：US11880889

申请日：2007-07-24

Applicant: Peter G. Halverson ,  Brent Ware ,  Daniel A. Shaddock ,  Robert E. Spero

Inventor： Peter G. Halverson ,  Brent Ware ,  Daniel A. Shaddock ,  Robert E. Spero

IPC: G01R25/00 ,  G01R13/00

CPC classification number: G01R25/00

Abstract: A phasemeter for estimating the phase of a signal. For multi-tone signals, multiple phase estimates may be provided. An embodiment includes components operating in the digital domain, where a sampled input signal is multiplied by cosine and sine terms to provide estimates of the inphase and quadrature components. The quadrature component provides an error signal that is provided to a feedback loop, the feedback loop providing a model phase that tends to track the phase of a tone in the input signal. The cosine and sine terms are generated from the model phase. The inphase and quadrature components are used to form a residual phase, which is added to the model phase to provide an estimate of the phase of the input signal. Other embodiments are described and claimed.

Abstract translation: 用于估计信号相位的相位计。 对于多音调信号，可以提供多个相位估计。 实施例包括在数字域中操作的组件，其中采样的输入信号乘以余弦和正弦项以提供同相和正交分量的估计。 正交分量提供了提供给反馈回路的误差信号，反馈回路提供倾向于跟踪输入信号中的音调相位的模型相位。 余弦和正弦项是从模型阶段生成的。 同相和正交分量用于形成残余相位，其被添加到模型相位以提供输入信号的相位的估计。 描述和要求保护其他实施例。

公开(公告)号：US20080224689A1

公开(公告)日：2008-09-18

申请号：US11880889

申请日：2007-07-24

Applicant: Peter G. Halverson ,  Brent Ware ,  Daniel A. Shaddock ,  Robert E. Spero

Inventor： Peter G. Halverson ,  Brent Ware ,  Daniel A. Shaddock ,  Robert E. Spero

IPC: G01R25/00

CPC classification number: G01R25/00

Abstract: A phasemeter for estimating the phase of a signal. For multi-tone signals, multiple phase estimates may be provided. An embodiment includes components operating in the digital domain, where a sampled input signal is multiplied by cosine and sine terms to provide estimates of the inphase and quadrature components. The quadrature component provides an error signal that is provided to a feedback loop, the feedback loop providing a model phase that tends to track the phase of a tone in the input signal. The cosine and sine terms are generated from the model phase. The inphase and quadrature components are used to form a residual phase, which is added to the model phase to provide an estimate of the phase of the input signal. Other embodiments are described and claimed.

Abstract translation: 用于估计信号相位的相位计。 对于多音调信号，可以提供多个相位估计。 实施例包括在数字域中操作的组件，其中采样的输入信号乘以余弦和正弦项以提供同相和正交分量的估计。 正交分量提供了提供给反馈回路的误差信号，反馈回路提供倾向于跟踪输入信号中的音调相位的模型相位。 余弦和正弦项是从模型阶段生成的。 同相和正交分量用于形成残余相位，其被添加到模型相位以提供输入信号的相位的估计。 描述和要求保护其他实施例。