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1. 发明授权

US06418162B1 Frequency spectrum measurement apparatus 有权
标题翻译：频谱测量装置
公开(公告)号：US06418162B1
公开(公告)日：2002-07-09
申请号：US09160888
申请日：1998-09-25
申请人： Man-Kit Yau , Nikhil M. Deshpande , Kyle L. Bernard
发明人： Man-Kit Yau , Nikhil M. Deshpande , Kyle L. Bernard
IPC分类号： H04B1700
CPC分类号： H03J7/32 , H04B17/23 , H04B17/309
摘要： A frequency spectrum measurement apparatus sweeps a desired frequency range using multiple scan lines. A controller provides a non-contiguous sequence of input values to a frequency synthesizer operating as a local oscillator for generating a non-contiguous frequency output signal over the desired frequency range with each value offsetting a current frequency output signal from a previous frequency output signal. A mixer receives an input signal and the variable frequency synthesizer signal for generating an intermediate frequency signal that is filtered through a bandpass filter. The power of the intermediate frequency signal output of the bandpass filter is measured and displayed. The frequency spectrum measurement apparatus is usable in measuring out of channel emissions of a terrestrial RF broadcast digital television signal.
摘要翻译：频谱测量装置使用多个扫描线扫描期望的频率范围。控制器向作为本地振荡器操作的频率合成器提供不连续的输入值序列，用于在期望的频率范围上产生不连续的频率输出信号，其中每个值抵消来自前一个频率输出信号的当前频率输出信号。混频器接收输入信号和可变频率合成器信号，用于产生通过带通滤波器滤波的中频信号。测量并显示带通滤波器的中频信号输出的功率。频谱测量装置可用于测量地面RF广播数字电视信号的信道发射。

2. 发明授权

US06272172B1 Measurement acquisition and display apparatus 失效
标题翻译：测量采集和显示装置
公开(公告)号：US06272172B1
公开(公告)日：2001-08-07
申请号：US09052801
申请日：1998-03-31
申请人： Nikhil M. Deshpande , Kyle L. Bernard , Man-Kit Yau
发明人： Nikhil M. Deshpande , Kyle L. Bernard , Man-Kit Yau
IPC分类号： H04B1700
CPC分类号： H04N17/004 , H04N5/38
摘要： A measurement acquisition and display system generates graphical displays of Cumulative Distribution Function (CDF) peak-to-average power ratio measurements of a digitally modulated RF signal and an ideal digitally modulated RF signal, such as an 8-VSB digital television signal. A variable target operating point or planning factor value is enterable into the system that defines an operating point on the ideal CDF of peak-to-average power ratio display. The corresponding operating point on the RF signal CDF of peak-to-average power ratio display is determined and numerically displayed along with a numerical display of the difference between the ideal and real operating points. Alarm limit variables may be set for generating an alarm signal when the RF signal peak-to-average power ratio exceeds the alarm limits. The measurement acquisition and display system further generates a graphical display of channel frequency spectrum of the digitally modulated RF signal.
摘要翻译：测量获取和显示系统产生数字调制RF信号和理想数字调制RF信号（例如8-VSB数字电视信号）的累积分布函数（CDF）峰值与平均功率比测量的图形显示。可变目标工作点或规划因子值可输入到系统中，该系统定义峰均功率比显示的理想CDF上的工作点。确定峰值与平均功率比显示的RF信号CDF上的相应工作点，并与理想值和实际工作点之间的差值进行数值显示。当RF信号峰均功率比超过报警限值时，可以设置报警极限变量来产生报警信号。测量获取和显示系统进一步产生数字调制RF信号的信道频谱的图形显示。

3. 发明授权

US06671334B1 Measurement receiver demodulator 有权
标题翻译：测量接收机解调器
公开(公告)号：US06671334B1
公开(公告)日：2003-12-30
申请号：US09185419
申请日：1998-11-03
申请人： Thomas L. Kuntz , Xiaofen Chen , Nikhil M. Deshpande , Kyle L. Bernard
发明人： Thomas L. Kuntz , Xiaofen Chen , Nikhil M. Deshpande , Kyle L. Bernard
IPC分类号： H04L2706
CPC分类号： H04L7/0029 , H04L25/0305 , H04L27/066 , H04L2025/03382 , H04L2025/03732 , H04L2027/0038 , H04L2027/0046 , H04L2027/0067 , H04L2027/0087 , H04N17/004
摘要： A measurement receiver demodulator has a first processing channel for producing a filtered signal sample output where the signal samples are processed through a transmission system receiver filter and a second processing channel producing an unfiltered signal sample output where the signal samples are not processed through the transmission system receiver filter. The first processing channel down converts digitally modulated IF signal samples and filters the down converted signal samples using a combined transmission system receiver filter and front end hardware compensation filter. A synchronizer produces timing phase and rate offset parameters that are applied to a resampling filter to synchronize the filtered signal samples to symbol instances of the symbol modulation. The filtered, time-aligned signal samples are scaled using a derived scaling factor. A pilot offset level, if present, is estimated and removed. The resultant signal samples are processed through an equalizer to produce filtered, time-aligned, scaled equalized signal samples that are output as filtered signal samples. The second processing channel receives the down converted signal samples and uses compensation and equalization filter coefficients, timing parameters, and the scaling from the first processing channel in compensation, resampling and equalization filters and a scaler to produce compensated, time-aligned, scaled equalized signal samples that are output as unfiltered signal samples.
摘要翻译：测量接收机解调器具有用于产生滤波信号采样输出的第一处理通道，其中通过传输系统接收机滤波器处理信号样本，产生未经滤波的信号样本输出的第二处理信道，其中信号采样不通过传输系统处理接收机滤波器第一处理通道使用组合的传输系统接收机滤波器和前端硬件补偿滤波器对数字调制IF信号采样进行下变频并对下变频的信号采样进行滤波。同步器产生施加到重采样滤波器的定时相位和速率偏移参数，以将经滤波的信号样本与符号调制的符号实例同步。滤波后的时间对齐信号样本使用导出的比例因子进行缩放。估计和删除导频偏移量（如果存在）。所得到的信号样本通过均衡器进行处理，以产生作为滤波信号样本输出的滤波的，时间对齐的，均衡的均衡信号样本。第二处理通道在补偿，重采样和均衡滤波器中使用补偿和均衡滤波器系数，定时参数和来自第一处理信道的缩放，以及缩放器，以产生经补偿的，时间对齐的，均衡的均衡信号作为未过滤的信号样本输出的样本。

4. 发明授权

US07471652B2 Real-time RF/IF signature trigger 失效
标题翻译：实时RF / IF签名触发
公开(公告)号：US07471652B2
公开(公告)日：2008-12-30
申请号：US11015962
申请日：2004-12-16
申请人： Kyle L. Bernard , Koichi Sega
发明人： Kyle L. Bernard , Koichi Sega
IPC分类号： H04B7/00
CPC分类号： G01R13/0254 , G01R23/16
摘要： An RF/IF signature trigger for acquiring received RF signal data is generated by correlating the received RF signal data in the form of a time domain RF/IF signal, a detected RF/IF signal and/or a frequency domain RF/IF signal with a reference signal defined by a signal signature record representing desired/undesired RF/IF signal patterns, detected RF pulse shapes, special RF markers used specifically for triggering signal acquisitions, particular signal patterns of interest and the like. The resulting correlation factor continuously calculated in real time is compared with a variable correlation threshold such that when the correlation factor reaches the variable correlation threshold, either positive or negative, the RF/IF signature trigger is generated to acquire the received RF signal data for analysis.
摘要翻译：通过将接收的RF信号数据以时域RF / IF信号，检测到的RF / IF信号和/或频域RF / IF信号的形式与所接收的RF信号数据相关联来产生用于获取接收的RF信号数据的RF / IF签名触发，由表示期望/不需要的RF / IF信号图案的信号签名记录，检测到的RF脉冲形状，专门用于触发信号采集的特殊RF标记，特定的感兴趣信号模式等的信号签名记录定义的参考信号。将所得到的实时连续计算的相关因子与可变相关阈值进行比较，使得当相关系数达到可变相关阈值（正或负）时，产生RF / IF签名触发以获取接收的RF信号数据用于分析。

5. 发明授权

US07734464B2 RF autocorrelation signal trigger generator 有权
标题翻译： RF自相关信号触发发生器
公开(公告)号：US07734464B2
公开(公告)日：2010-06-08
申请号：US11134216
申请日：2005-05-20
申请人： Kyle L. Bernard
发明人： Kyle L. Bernard
IPC分类号： G10L19/00
CPC分类号： G01R13/0254
摘要： An autocorrelation trigger comprising a correlator detector for producing a correlation coefficient by correlating a signal with a time-delayed version of the signal and generating a trigger in real-time when the correlation coefficient corresponds to a predetermined condition is provided. A method of producing trigger based upon an autocorrelation measurement is also provided. The autocorrelation trigger may be used to produce a trigger based upon the degree to which the autocorrelation relates to an autocorrelation model, such as, the degree of randomness in a signal.
摘要翻译：一种自相关触发器，包括相关器检测器，用于通过使信号与信号的时间延迟形式相关并且当相关系数对应于预定条件时实时产生触发来产生相关系数。还提供了一种基于自相关测量产生触发的方法。自相关触发可以用于基于自相关与自相关模型（例如信号中的随机程度）相关的程度产生触发。

6. 发明申请

US20080258706A1 Wide-Bandwidth Spectrum Analysis of Transient Signals Using a Real-Time Spectrum Analyzer 有权
标题翻译：使用实时频谱分析仪进行瞬态信号的宽带频谱分析
公开(公告)号：US20080258706A1
公开(公告)日：2008-10-23
申请号：US12092567
申请日：2006-11-02
申请人： Kyle L. Bernard
发明人： Kyle L. Bernard
IPC分类号： G01R23/16
CPC分类号： G01R23/16
摘要： A system and method for performing wide-band spectral analysis of transient signals using a real-time spectrum analyzer (RTSA). A frequency window is selected for RTSA acquisition, the frequency window being narrower in bandwidth than the frequency spectrum of interest. An RTSA is successively tuned to a plurality of different frequencies within the frequency spectrum of interest, where such successive tuning is controlled based on a characteristic of the signal. The RF signal is received, and, for each of the plurality of different frequencies, power data is acquired for the signal in a band centered on the frequency and having a bandwidth equal to that of the frequency window. A representation of the frequency spectrum of interest is then constructed from the power data acquired during the successive tunings of the RTSA.
摘要翻译：一种使用实时频谱分析仪（RTSA）对瞬态信号进行宽带频谱分析的系统和方法。选择频率窗口进行RTSA采集，频率窗口的频带窄于感兴趣的频谱。 RTSA被依次调谐到感兴趣的频谱内的多个不同的频率，其中基于信号的特性来控制这种连续的调谐。 RF信号被接收，并且对于多个不同频率中的每一个，对于以频率为中心并具有等于频率窗口的带宽的频带中的信号，获取功率数据。然后，从RTSA的连续调谐期间获取的功率数据构建目标频谱的表示。

7. 发明授权

US07298129B2 Time arbitrary signal power statistics measurement device and method 有权
公开(公告)号：US07298129B2
公开(公告)日：2007-11-20
申请号：US11267087
申请日：2005-11-04
申请人： Kyle L. Bernard
发明人： Kyle L. Bernard
IPC分类号： G01R23/16 , G06F19/00
CPC分类号： G01R23/16
摘要： A measurement instrument is provided with an FFT module providing a frequency domain output; and a power calculator connected to the frequency domain output to measure power statistics for a test signal of arbitrary length. In some embodiments, a spectrum integration module is provided to calculate the power contained within a frequency band. In an embodiment, a filter/averaging module is provided to compute signal power statistics over an arbitrary time period. Accumulators may be provided to store data related to maximum power, minimum power, average power, or peak to average power. A CCDF module may be provided in some embodiments to calculate CCDF related measurements. Also provided are methods of making power statistic measurements.

8. 发明授权

US08179118B2 Wide-bandwidth spectrum analysis of transient signals using a real-time spectrum analyzer 有权
标题翻译：使用实时频谱分析仪对瞬态信号进行宽带频谱分析
公开(公告)号：US08179118B2
公开(公告)日：2012-05-15
申请号：US12092567
申请日：2006-11-02
申请人： Kyle L. Bernard
发明人： Kyle L. Bernard
IPC分类号： G01R23/16 , H04B1/18
CPC分类号： G01R23/16
摘要： A system and method for performing wide-band spectral analysis of transient signals using a real-time spectrum analyzer (RTSA). A frequency window is selected for RTSA acquisition, the frequency window being narrower in bandwidth than the frequency spectrum of interest. An RTSA is successively tuned to a plurality of different frequencies within the frequency spectrum of interest, where such successive tuning is controlled based on a characteristic of the signal. The RF signal is received, and, for each of the plurality of different frequencies, power data is acquired for the signal in a band centered on the frequency and having a bandwidth equal to that of the frequency window. A representation of the frequency spectrum of interest is then constructed from the power data acquired during the successive tunings of the RTSA.
摘要翻译：一种使用实时频谱分析仪（RTSA）对瞬态信号进行宽带频谱分析的系统和方法。选择频率窗口进行RTSA采集，频率窗口的频带窄于感兴趣的频谱。 RTSA被依次调谐到感兴趣的频谱内的多个不同的频率，其中基于信号的特性来控制这种连续的调谐。 RF信号被接收，并且对于多个不同频率中的每一个，对于以频率为中心并具有等于频率窗口的带宽的频带中的信号，获取功率数据。然后，从RTSA的连续调谐期间获取的功率数据构建目标频谱的表示。

9. 发明授权

US06701265B2 Calibration for vector network analyzer 失效
标题翻译：矢量网络分析仪的校准
公开(公告)号：US06701265B2
公开(公告)日：2004-03-02
申请号：US10093171
申请日：2002-03-05
申请人： Thomas C. Hill , Xiaofen Chen , Soraya J. Matos , Leroy J. Willmann , Kyle L. Bernard , Linley F. Gumm
发明人： Thomas C. Hill , Xiaofen Chen , Soraya J. Matos , Leroy J. Willmann , Kyle L. Bernard , Linley F. Gumm
IPC分类号： G01D1800
CPC分类号： G01R27/32 , G01R35/005
摘要： An improved calibration method for a vector network analyzer stores sparse calibration data, interpolates system error data from the sparse calibration data for each measurement by the vector network analyzer, and creates calibrated measurement data from the system error data and uncorrected measurement data at each measurement frequency. The sparse calibration data may be generated by measuring every Nth frequency step over a calibration frequency range greater than a specified measurement frequency range, or by measuring every frequency step over the calibration frequency range and compressing the resulting measurement data. The interpolation may be achieved by using a curve-fit algorithm, such as a parametric polynomial curve fitting algorithm.
摘要翻译：用于矢量网络分析仪的改进的校准方法存储稀疏校准数据，通过矢量网络分析仪从每个测量的稀疏校准数据内插系统误差数据，并从系统误差数据和每个测量频率的未校正测量数据创建校准的测量数据。可以通过在大于指定测量频率范围的校准频率范围上测量每第N个频率步长，或者通过测量校准频率范围上的每个频率步长并压缩所得到的测量数据来生成稀疏校准数据。可以通过使用诸如参数多项式曲线拟合算法的曲线拟合算法来实现内插。

10. 发明授权

US5394185A In-service CATV HUM measurement technique 失效
标题翻译：在线CATV HUM测量技术
公开(公告)号：US5394185A
公开(公告)日：1995-02-28
申请号：US1951
申请日：1993-01-08
申请人： Kyle L. Bernard
发明人： Kyle L. Bernard
IPC分类号： H04N17/00
CPC分类号： H04N17/00
摘要： An in-service hum and low frequency distortion measurement technique for in-service cable television channels having a video modulated carrier frequency obtains peak samples of the horizontal sync signal to effectively filter out the vertical interval frequency. The data record formed by the peak samples is filtered and input to a fast Fourier transform to obtain magnitude values for the fundamental and first harmonic frequency components corresponding to a powerline. From these magnitude values hum and low frequency distortion is computed as a percentage relative to the amplitude of the carrier frequency. The same procedure may be used with an input CW signal in an out-of-service measurement for hum only, the difference between the in-service and out-of-service measurements determining the low frequency distortion due to the video signal.
摘要翻译：具有视频调制载波频率的在线有线电视频道的在线嗡嗡声和低频失真测量技术获得水平同步信号的峰值采样，以有效地滤除垂直间隔频率。由峰值样本形成的数据记录被滤波并输入到快速傅里叶变换，以获得对应于电力线的基波和第一谐波频率分量的幅度值。从这些幅度值中，嗡嗡声和低频失真被计算为相对于载波振幅的百分比。对于仅在嗡嗡声的服务外测量中，输入CW信号可以使用相同的过程，在使用中和服务外测量之间的差异确定由视频信号引起的低频失真。

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