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公开(公告)号：EP2649723A2
公开(公告)日：2013-10-16
申请号：EP11801899.3
申请日：2011-11-23
发明人： TURNER, Larry, A.
IPC分类号： H02P23/14
摘要： A Complex Adaptive Phase Estimation (PE) filter, as presented in some concepts of the present disclosure, is an adaptive filter that accurately estimates the phase difference between signals. For example, the PE filter can estimate the phase difference between a complex primary signal and a complex incident signal, iteratively adapting the phase of a complex exponential by minimizing the mean squared error of a complex error signal. The PE filter can demonstrate accurate phase estimation and rapid convergence, with low computational complexity and storage requirements. In addition, the PE filter construction can be simplified to support absolute phase estimation of a single complex signal. Efficient complex normalization approximation can be developed to support practical PE filter implementation in computationally restrictive environments, including systems with real-time response constraints, and systems without efficient native or functional support for division or square root operations.
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2.发明授权Contactless measurement of the electrical resistance per unit length of filaments 失效非接触式测量每线形元件的单位长度电阻。
公开(公告)号：EP0400853B1
公开(公告)日：1995-06-14
申请号：EP90305474.0
申请日：1990-05-21
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3.发明公开Verfahren und Vorrichtung zur Phasenmessung von Signalen an einem Messpunkt mit Hilfe eines modulierten Korpuskularstrahls 失效方法和装置用于通过一个调制带电粒子束的装置的测量点处的信号的相位测量。
公开(公告)号：EP0308677A1
公开(公告)日：1989-03-29
申请号：EP88113889.5
申请日：1988-08-25
发明人： Brust, Hans-Detlef
IPC分类号： G01R25/04
CPC分类号： G01R25/04
摘要： Verfahren und Vorrichtung zur Phasenmessung von beliebigen Signalen an einem Meßpunkt, beispielsweise von Oberflächenwellen auf piezoelektrischen Substraten, bei dem man auf der Oberfläche einer piezoelektrischen Eigenschaft aufweisenden Probe Oberflächenwellen anregt. Ein Meßpunkt auf der Probenoberfläche wird durch ein stroboskopisches Verfahren mit Hilfe eines Korpuskularstrahls (PE) abgetastet und an dem jeweils beaufschlagten Meßpunkt der Probenoberfläche wird ein sekundäres elektrisches Signal (SE) über einen Detektor (DT) einer Auswerteschaltung (AS) zugeführt. Mit Hilfe einer Rückkopplung (RK) wird innerhalb der Auswerteschaltung (AS) der Phasendetektor (PD) in einem linearen Bereich seiner Ausgangskennlinie betrieben. Hierdurch ist es möglich, die Phase am Phasendetektor konstant zu halten. Durch die Rückkopplung (RK) wird entweder die Phase des Korpuskularstrahls (PE) oder des zu untersuchenden Signals, beispielsweise der Oberflächenwelle, die an dem Interdigitalwandler (IDW) erzeugt wird, beeinflußt.
摘要翻译： 的方法，以及用于测量任意的信号的相位在一个测试点，对于其中表面波压电基板上表面波的实施例的装置是一个样品参展压电特性的表面上激发。 试样表面上的测试点被扫描用粒子束（PE）的由频闪方法和在试样表面的测试点，其中所述光束在每种情况下所施加的助剂，次级电信号（SE）是 供应到经由检测器（DT）评估电路（AS）。 相位检测器（PD）中的评价电路（AS）以与的反馈（RK）的帮助下其输出特性的线性范围内操作。 这使得能够保持相鉴相器不变。 它或者是粒子束（PE）或信号的相位要被检查，对于实施例的表面波所有这一切是在叉指式变换器（IDW）生成的，其全部由反馈（RK）的影响。
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公开(公告)号：EP1538450A1
公开(公告)日：2005-06-08
申请号：EP04300816.8
申请日：2004-11-25
申请人： Actaris UK Limited
发明人： Brown, Scott , Chen, Chun
IPC分类号： G01R21/133 , G01R25/04
CPC分类号： G01R22/10 , G01R21/06 , G01R21/133 , G01R25/04
摘要： The present invention relates to the field of electrical power meter utilizing digital signal processing in order to provide the consumption of electrical energy by integration of said electrical power. Said meter (1) comprises a voltage sensor (4), a current sensor (3), an analogue to digital converter (8) including first sampling means for generating a first voltage sample at a first sampling time and second sampling means for generating a first current sample at a second sampling time. Said meter further comprises phase compensation means (9) for compensating phase shifts between said analogue voltage and current signals by adjusting said second sampling time compared to said first sampling time in order to provide said first voltage sample and said first current sample substantially in phase, means (6,12 and 13) for saturating said voltage and current analog signals in order to produce voltage and current substantially square waves and means (15) for evaluating said shifting of sampling time by taking the differences between the zero crossing time of said current square wave and the zero crossing time of said voltage square wave.
摘要翻译： 本发明涉及利用数字信号处理的电力仪表领域，以通过集成所述电力来提供电能的消耗。 所述仪表（1）包括电压传感器（4），电流传感器（3），模数转换器（8），包括用于在第一采样时间产生第一电压采样的第一采样装置和用于产生第 第一个采样时间的第一个当前样本。 所述仪表还包括相位补偿装置（9），用于通过与所述第一采样时间相比调节所述第二采样时间来补偿所述模拟电压和电流信号之间的相移，以便将所述第一电压采样和所述第一电流采样基本上同相， 用于饱和所述电压和电流模拟信号以便产生电压和电流基本上方波的装置（6,12和13），以及用于通过取所述电流的过零时间之间的差来评估所述采样时间的移位的装置（15） 方波和所述电压方波的零交叉时间。
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公开(公告)号：EP0737317B1
公开(公告)日：1998-04-08
申请号：EP95901322.8
申请日：1994-11-23
申请人： ROBERT BOSCH GMBH
发明人： MELLER, Wolfgang , WIDMANN, Fritz
摘要： The invention concerns a digital phase detector for the determination of phase shifts between a comparison clock signal (VT) and a reference clock signal (RT). First means (STA, STO) generate start and stop signals from the pulses of the reference and comparison clock signals (RT, VT). A counter (ZG, Z) counts the pulses of a higher-frequency counter clock signal (ZT) in the time slot between a start signal and the subsequent stop signal. The count registered by the counter (ZG, Z) is a measure of the phase shift. Digital phase detectors of this kind exhibit quantization errors. The use of a sign information (VZ) derived from the comparison clock signal, which leads or lags the reference clock signal, and means (MP) which add a constant to the counter count enables the effects of the quantization error to be significantly reduced. The phase detector proposed makes it possible to design phase-control loops giving precise clock-signal adjustment since it provides a control signal even when the phase shift between the comparison and reference clock signals is very small.
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公开(公告)号：EP0256637A2
公开(公告)日：1988-02-24
申请号：EP87305398.7
申请日：1987-06-18
摘要： A phase detector for indicating the magnitude of a phase difference between two electrical signals applied to it, is provided with means for introducing a deliberate phase shift into one of the signals so that the measured phase difference never closely approaches 0° or a multiple of 360°. The detector is capable of providing a smooth output signal over a very wide range of phase difference which can exceed many multiples of 360°. Furthermore, the phase comparator is never required to perform measurements in those regions of least accuracy close to zero phase difference.
摘要翻译： 用于指示施加于其上的两个电信号之间的相位差的大小的相位检测器设置有用于将有意的相移引入其中一个信号的装置，使得所测量的相位差永不接近0°或360的倍数 °。 该检测器能够在非常宽的相位差范围内提供平滑的输出信号，该相位差可以超过360°的许多倍数。 此外，相位比较器不需要在接近零相位差的最小精度的那些区域中执行测量。
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公开(公告)号：EP0115151A3
公开(公告)日：1985-08-28
申请号：EP83307706
申请日：1983-12-19
申请人： SPERRY CORPORATION
发明人： Maine, Reuben Edwin
摘要： @ A phase differential determining apparatus generates low frequency output signals from a multiple channel receiver and extracts relative phase angles of the receiver RF signals therefrom. The same local oscillator signals, which are phase locked to one of the received RF signals, are utilised for all channels thus preserving the phase difference of the RF signals during the heterodyning process so that phase angle differences between the low frequency output signals is the same as the phase angle differences between the received RF signals. The relative phase angles are determined at the low frequency signals from the local oscillator (27) which is phase locked to a reference channel, and varying the phase shift applied thereto until the phase difference between this low frequency local oscillator signal and the low frequency output signal of the selected channel is zero. The phase shift introduced to the low frequency local oscillator signal is equal to the difference in phase between the two RF signals.
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公开(公告)号：EP3362804A2
公开(公告)日：2018-08-22
申请号：EP16788321.4
申请日：2016-10-12
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for detecting characteristics of an input signal. One aspect includes a first finite input response (FIR) filter, a second FIR filter, and a controller coupled with the first and second FIR filters. The first FIR filter receives an input signal and a first reference signal. The first FIR filter filters the first reference signal to generate a first sinusoidal signal and mixes the first sinusoidal signal and the input signal to generate a first mixed signal. The second FIR filter receives the input signal and a second reference signal. The second FIR filter filters the second reference signal to generate a second sinusoidal signal and mixes the second sinusoidal signal and the input signal to generate a second mixed signal. The controller determines characteristics of the input signal based on the first and second mixed signals.
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公开(公告)号：EP3100350A1
公开(公告)日：2016-12-07
申请号：EP15744049.6
申请日：2015-01-15
申请人： Moog Inc.
发明人： SAGLIME, Frank, J.
IPC分类号： H02P7/00
摘要： The present disclosure provides methods and systems for determining the rotor position of a BLDC motor having a saliency. Techniques according to the present disclosure advantageously may be used to determine a rotor position of a rotor which is not moving.
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