公开(公告)号：US20070225926A1

公开(公告)日：2007-09-27

申请号：US11389578

申请日：2006-03-23

申请人： Kenny Gross ,  Keith Whisnant ,  Gregory Cumberford

发明人： Kenny Gross ,  Keith Whisnant ,  Gregory Cumberford

IPC分类号： G06F19/00 ,  G06F17/40

CPC分类号： G01R31/31708

摘要： One embodiment of the present invention provides a system that determines a severity of degradation in a signal. During operation, the system receives signal values for the signal, wherein the signal values are received with a constant sampling interval. Next, for each received signal value, the system applies a Sequential Probability Ratio Test (SPRT) to the signal value. If the SPRT generates an alarm on the signal value, the system increments a cumulative counter which records a running total number of the SPRT alarms. Upon receiving each signal value, the system updates a cumulative function using a value in the cumulative counter. Next, the system determines the severity of degradation in the signal from the shape of the cumulative function.

摘要翻译： 本发明的一个实施例提供一种确定信号劣化的严重性的系统。 在操作期间，系统接收信号的信号值，其中以恒定采样间隔接收信号值。 接下来，对于每个接收的信号值，系统对信号值应用顺序概率比测试（SPRT）。 如果SPRT在信号值上产生警报，系统会增加累积计数器，该计数器记录SPRT报警的运行总数。 在收到每个信号值后，系统使用累积计数器中的值更新累积函数。 接下来，系统根据累积函数的形状确定信号的劣化的严重性。

公开(公告)号：US20070179727A1

公开(公告)日：2007-08-02

申请号：US11342057

申请日：2006-01-27

申请人： Kenny Gross ,  Ramakrishna Dhanekula ,  Eugenio Schuster ,  Gregory Cumberford

发明人： Kenny Gross ,  Ramakrishna Dhanekula ,  Eugenio Schuster ,  Gregory Cumberford

IPC分类号： G01R23/16 ,  G06F19/00

CPC分类号： H03M1/20

摘要： One embodiment of the present invention provides a system that reconstructs a high-resolution signal from a set of low-resolution quantized samples. During operation, the system receives a time series containing low-resolution quantized signal values which are sampled from the high-resolution signal. Next, the system performs a spectral analysis on the time series to obtain a frequency series for the low-resolution quantized signal values. The system next selects a subset of frequency terms from the frequency series which have the largest amplitudes. The system then reconstructs the high-resolution signal by performing an inverse spectral analysis on the subset of the frequency terms.

摘要翻译： 本发明的一个实施例提供一种从一组低分辨率量化样本重构高分辨率信号的系统。 在操作期间，系统接收包含从高分辨率信号中采样的低分辨率量化信号值的时间序列。 接下来，系统对时间序列执行频谱分析，以获得低分辨率量化信号值的频率序列。 该系统接下来从具有最大幅度的频率序列中选择频率项的子集。 然后，该系统通过对频率项的子集执行反频谱分析来重构高分辨率信号。