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1. 发明授权

US5652512A Advanced digital flux gate magnetometer 失效
标题翻译：先进的数字磁通门磁强计
公开(公告)号：US5652512A
公开(公告)日：1997-07-29
申请号：US636420
申请日：1996-04-23
申请人： Paul L. Feintuch , Eric K. Slater , Kirk Kohnen
发明人： Paul L. Feintuch , Eric K. Slater , Kirk Kohnen
IPC分类号： G01C17/30 , G01R33/04 , G01C17/28
CPC分类号： G01R33/04 , G01C17/30
摘要： Digital logic comprising a high speed analog to digital converter, a high speed analog to digital converter, a digital multiplier, and an infinite impulse response filter and decimation circuit are used to digitize a magnetic signal that is subsequently processed by magnetic data processing algorithms. The high resolution digital to analog converter is directly incorporated in a feedback loop of a magnetometer sensor, and an expensive precision analog to digital converter is replaced by a less expensive, lower power digital to analog converter. The improvement provided by the present invention includes a high speed analog to digital converter coupled between the oscillator and a first input of a multiplier, and a second analog to digital converter that is coupled between the sense coil of the sensor and a second input of the multiplier. The output of the multiplier is coupled to an infinite impulse response filter and decimation circuit that produces the digital output signal from the magnetometer. The output of the infinite impulse response filter and decimation circuit is coupled by way of a digital to analog converter to the feedback coil of the sensor. Depending on the system requirements, the two analog to digital converters, the digital multiplier, and the infinite impulse response filter and decimation circuit may be implemented in one readily available microcontroller at low cost. This serves to reduce the number of components, complexity, and expense of the magnetometer.
摘要翻译：使用包括高速模数转换器，高速模数转换器，数字乘法器和无限脉冲响应滤波器和抽取电路的数字逻辑来数字化随后由磁数据处理算法处理的磁信号。高分辨率数模转换器直接并入到磁力计传感器的反馈回路中，昂贵的精密模数转换器由较便宜的低功耗数模转换器代替。本发明提供的改进包括耦合在振荡器和乘法器的第一输入端之间的高速模数转换器和耦合在传感器的感测线圈和第二输入端之间的第二模数转换器乘数。乘法器的输出耦合到产生来自磁力计的数字输出信号的无限脉冲响应滤波器和抽取电路。无限脉冲响应滤波器和抽取电路的输出通过数模转换器耦合到传感器的反馈线圈。根据系统要求，可以在一个容易获得的微控制器中以低成本实现两个模数转换器，数字乘法器和无限脉冲响应滤波器和抽取电路。这用于减少磁力计的部件数量，复杂性和费用。

2. 发明授权

US5425105A Multiple adaptive filter active noise canceller 失效
标题翻译：多自适应滤波器主动噪声消除器
公开(公告)号：US5425105A
公开(公告)日：1995-06-13
申请号：US53728
申请日：1993-04-27
申请人： Allen K. Lo , Paul L. Feintuch
发明人： Allen K. Lo , Paul L. Feintuch
IPC分类号： F01N1/00 , G10K11/178 , H03H17/00 , H03H17/02 , H03H21/00 , G10K11/16
CPC分类号： G10K11/1784 , G10K2210/108 , G10K2210/1081 , G10K2210/3025 , G10K2210/3028 , G10K2210/3042 , G10K2210/3045 , G10K2210/503 , G10K2210/512
摘要： An active adaptive noise canceller that does not require a training mode and operates over an extended noise bandwidth. The canceller partitions the noise bandwidth into frequency sub-bands, and multiple adaptive filter channels are employed, one for each sub-band, to cancel noise energy in the respective sub-bands. Each channel includes bandpass filters to restrict the channel to operation over only the particular sub-band, and delays are inserted in the operation of the filter weight updating. Because each channel is stable over its sub-band, the canceller operates over the extended noise bandwidth of all the sub-bands.
摘要翻译：主动自适应噪声消除器，不需要训练模式并在扩展的噪声带宽上工作。消除器将噪声带宽划分为频率子带，并且对于每个子带采用多个自适应滤波器信道，以消除各个子带中的噪声能量。每个通道包括带通滤波器，以将信道限制在仅对特定子带进行操作，并且在滤波器权重更新的操作中插入延迟。因为每个信道在其子带上都是稳定的，所以消除器在所有子带的扩展噪声带宽上运行。

3. 发明授权

US5988038A Method and apparatus for destroying buried objects 失效
标题翻译：破坏埋藏物体的方法和装置
公开(公告)号：US5988038A
公开(公告)日：1999-11-23
申请号：US10600
申请日：1998-01-22
申请人： Paul L. Feintuch
发明人： Paul L. Feintuch
IPC分类号： F41G3/00 , F41H11/16 , B64D1/04
CPC分类号： F41H11/16
摘要： An apparatus for destroying a buried object includes a targeting system including a sensor operable to detect the presence and location of an object which is at least partially buried in the ground, a gun system including a gun operable to fire a projectile into the ground, and a control system that aims the gun responsive to the presence and location of the buried object as determined by the targeting system. The sensor also desirably detects the presence and location of the projectile fired by the gun system, and the gun pointer is responsive to the location of the projectile. The sensor thus detects the presence of the buried object, the control system aims the gun at the buried object, and the gun fires the projectile. The sensor detects the relative positions of the buried object and the projectile as it passes near the buried object, the control system corrects the aim of the gun in the event that the prior shot misses, and the gun fires another projectile with a corrected aim.
摘要翻译：一种用于摧毁被埋物体的装置包括一种靶向系统，其包括可操作以检测至少部分地埋在地面中的物体的存在和位置的传感器，包括可操作地将射弹射入地面的枪的枪系统，以及一种控制系统，其针对由靶向系统确定的掩埋物体的存在和位置来对准枪。传感器还期望地检测由枪系统发射的射弹的存在和位置，并且枪指针响应于射弹的位置。因此，传感器检测到埋藏物体的存在，控制系统将枪瞄准被埋物体，枪射击射弹。传感器探测到掩埋物体和射弹在通过掩埋物体附近时的相对位置，如果先前射击失败，则控制系统校正枪的目标，并且枪以正确的目的射出另一个射弹。

4. 发明授权

US5420827A Passive multipath target range and depth estimation using a variable depth sonar 失效
标题翻译：使用可变深度声纳的被动多径目标范围和深度估计
公开(公告)号：US5420827A
公开(公告)日：1995-05-30
申请号：US628193
申请日：1984-07-06
申请人： Paul L. Feintuch
发明人： Paul L. Feintuch
IPC分类号： G01S3/803 , G01S11/14 , G01S3/80
CPC分类号： G01S11/14 , G01S3/8032
摘要： A variable depth sonar is disclosed which is adapted to provide passive multipath target ranging and depth estimates. The sonar employs a novel estimation procedure which is adapted to sonars with relatively small sensors and limited computing power. A novel feature of the invention is the introduction of a change of depth of the sonar receiver, mounted on a mobile platform, into the estimation process. Measurements at the two different depths are combined to provide target range and depth.Other features and improvements are disclosed.
摘要翻译：公开了一种适用于提供无源多径目标测距和深度估计的可变深度声纳。声纳采用新颖的估计程序，适用于具有相对较小传感器和有限计算能力的声纳。本发明的新颖特征是将安装在移动平台上的声纳接收机的深度变化引入到估计过程中。将两个不同深度的测量结合起来，以提供目标范围和深度。公开了其他特征和改进。

5. 发明授权

US4933914A Channel adaptive active sonar 失效
标题翻译：通道自适应主动声纳
公开(公告)号：US4933914A
公开(公告)日：1990-06-12
申请号：US3529
申请日：1987-01-15
申请人： Paul L. Feintuch , Francis A. Reed
发明人： Paul L. Feintuch , Francis A. Reed
IPC分类号： G01S7/52 , G01S7/539 , G01S15/10
CPC分类号： G01S15/102 , G01S7/52004 , G01S7/539 , Y10S367/901
摘要： A channel adaptive active sonar is disclosed, wherein the sonar transmit waveform is adaptively selected in accordance with the measured sonar channel scattering function to reduce the response of the sonar to unwanted reverberation while preserving the response to signal returns. As a result, the sonar target detectability is improved over sonar systems which do not adapt to the variable properties of the ocean channel. The sonar is operable in two modes, the channel measurement mode and the normal active mode. In the channel measurement mode, probe signals are transmitted to test the channel response. From the sonar receive signals resulting from the transmitted probe signals, the channel scattering function is estimated. The transmit waveform for the sonar active mode is then designed to provide a waveform whose ambiguity function overlaps minimally with the estimated channel scattering function. As a result of the waveform selection, the sonar resonse to reverberation is reduced while maintaining the sonar target response.
摘要翻译：公开了一种通道自适应主动声纳，其中根据测量的声纳通道散射函数自适应地选择声纳发射波形，以将声纳的响应减小到不希望的混响，同时保持对信号返回的响应。结果，对于不适应海洋通道的可变特性的声纳系统，声纳目标可检测性得到改善。声纳可在两种模式下操作，即通道测量模式和正常激活模式。在通道测量模式下，发送探头信号以测试通道响应。从发射的探测信号产生的声纳接收信号中，估计信道散射函数。然后，声纳活动模式的发射波形被设计成提供其模糊函数与估计的信道散射函数最小重叠的波形。作为波形选择的结果，在保持声纳目标响应的同时降低了对混响的声纳响应。

6. 发明授权

US5790474A Active sonar for under-ice conditions 失效
标题翻译：主动声纳用于冰面条件下
公开(公告)号：US5790474A
公开(公告)日：1998-08-04
申请号：US391835
申请日：1989-08-04
申请人： Paul L. Feintuch
发明人： Paul L. Feintuch
IPC分类号： G01S7/524 , G01S7/539 , G01S15/06 , G01S15/10 , G01S15/87
CPC分类号： G01S7/539 , G01S15/107 , G01S15/06 , G01S15/87 , G01S7/524
摘要： Active sonar apparatus, especially adapted for detecting submarine targets under ice, includes means for providing first and second pulsed, underwater acoustic signals respectfully having a high frequency, f.sub.H, and a low frequency, f.sub.L. The high frequency, f.sub.H, is selected for causing the signal to be reflected at the submerged, water-ice interface and and the low frequency, f.sub.L, selected for enabling the signal to be propagated through the ice with no significant reflection at the water-ice interface while then causing the signal to be reflected at the above-water, air-ice interface. Included are means for separately receiving and processing the reflected signals from the first and second acoustic signals and for detecting possible target reflections (which may include ice reflections) as a function of range and angle cells. Further included are signal comparing means for comparing range and angle cells of the two reflected signals, a probable target detection being established when possible target detections for both reflected signals are indicated in corresponding cells. The high and low frequency signals may be separately generated or may be provided as interference signals by a parametric transponder.
摘要翻译：主动声纳装置，特别适用于检测冰下的潜艇目标，包括用于提供具有高频率fH和低频率fL的第一和第二脉冲水下声信号的装置。选择高频fH，以使信号在浸没的水冰界面处被反射，并且选择低频fL以使信号能够在水面上没有显着的反射传播通过冰，冰界面，然后使信号在上述水，空气 - 冰界面处反射。包括用于分别接收和处理来自第一和第二声信号的反射信号并且用于检测作为范围和角度单元的函数的可能的目标反射（其可以包括冰反射）的装置。还包括用于比较两个反射信号的范围和角度单元的信号比较装置，当在相应的单元中指示两个反射信号的可能的目标检测时，建立可能的目标检测。高频和低频信号可以单独产生，或者可以由参数转发器作为干扰信号提供。

7. 发明授权

US5040133A Adaptive clusterer 失效
标题翻译：自适应聚类器
公开(公告)号：US5040133A
公开(公告)日：1991-08-13
申请号：US463756
申请日：1990-01-12
申请人： Paul L. Feintuch , Michael D. Banach
发明人： Paul L. Feintuch , Michael D. Banach
IPC分类号： G06F19/00 , G06K9/62
CPC分类号： G06K9/6224 , G06K9/6226
摘要： This invention relates to a technique and system (34) for clustering a set of data points (18) in a data field. Clustering is performed by a set of rules which make no assumptions about the data fields. That is, the number of clusters, the distance between clusters, etc., need not be specified in advance. The invention calculates a distance R that is a function of the distances between each pair of points (18) in a data field. Operating on a chosen point, a parameter is calculated for each neighboring point within distance R from the chosen point. This parameter is proportional to the distance of the neighboring point to the chosen point. The chosen point P is then connected to a neighboring point on the basis of this parameter. All points, in any order are operating on as the new chosen point, so that the additional points may be linked to new chosen points in a similar manner. In this way, a tree-structure (22, 24) of connected points will form the desired clustering. Points (18) not having other points within distance R will not be clustered or linked.

8. 发明授权

US4939685A Normalized frequency domain LMS adaptive filter 失效
标题翻译：归一化频域LMS自适应滤波器
公开(公告)号：US4939685A
公开(公告)日：1990-07-03
申请号：US455893
申请日：1989-12-27
申请人： Paul L. Feintuch
发明人： Paul L. Feintuch
IPC分类号： H03H21/00
CPC分类号： H03H21/0027
摘要： A normalized frequency domain Least Means Square filter. The feedback coefficient for each frequency bin is adjusted separately in the filter by use of an input power estimate. The power estimate is incorporated directly into the filter algorithm as a data-dependent, time-varying stochastic feedback coefficient. The filter is particularly useful in applications in which the input signal has large spectral variations, which could lead to filter instabilities in some frequency bins if a single feedback coefficient were employed in all frequency bins.
摘要翻译：归一化频域最小均方滤波器。通过使用输入功率估计，在滤波器中分别调整每个频率仓的反馈系数。功率估计被直接并入到滤波器算法中作为数据相关的时变随机反馈系数。该滤波器在输入信号具有大的频谱变化的应用中特别有用，如果在所有频率仓中采用单个反馈系数，则可能导致某些频率仓中的滤波器不稳定性。

9. 发明授权

US4038536A Adaptive recursive least mean square error filter 失效
标题翻译：自适应最小均方误差滤波器
公开(公告)号：US4038536A
公开(公告)日：1977-07-26
申请号：US671889
申请日：1976-03-29
申请人： Paul L. Feintuch
发明人： Paul L. Feintuch
IPC分类号： H03H21/00 , G06F15/34 , H04B3/04
CPC分类号： H03H21/0043
摘要： An adaptive recursive filter is disclosed which, in a preferred embodiment, comprises first and second adaptive transversal filters selectively coupled together to minimize the mean square error of the output data of the recursive filter based upon observations of input data to the recursive filter. Each transversal filter includes a tapped delay line with a variable weight on each tap. The output data of the recursive filter is developed by combining the outputs of the first and second transversal filters. The input data is applied to the first transversal filter, while the output data is applied to the second transversal filter. The output data is also combined with a reference signal to provide an error signal. A function of that error signal is utilized to update the weights of all of the taps in both transversal filters in order to cause the weights to automatically adapt themselves to minimize the mean square error of the output data of the recursive filter.

10. 发明授权

US06987707B2 Method and system for in-air ultrasonic acoustical detection and characterization 失效
标题翻译：空气超声波声学检测和表征的方法和系统
公开(公告)号：US06987707B2
公开(公告)日：2006-01-17
申请号：US10712805
申请日：2003-11-12
申请人： Paul L. Feintuch , Francis A. Reed , Michael Cox , Ronald A. Borrell
发明人： Paul L. Feintuch , Francis A. Reed , Michael Cox , Ronald A. Borrell
IPC分类号： G01S15/04 , G01S15/06
CPC分类号： G08B13/1618 , G01S7/52006 , G01S7/539 , G01S15/04 , G01S15/523 , G01S15/66 , G01S15/87
摘要： A system and method are presented for determining the detection and location of persons and objects using ultrasonic acoustic sensors. The system allows detection of stationary and moving persons and other objects, through atmospheric conditions, to a distance of at least 300 feet. The invention further provides for enhanced signal processing through the use of arrays of transmitters and receivers, where one or more transmitter arrays may be oriented substantially perpendicularly to one or more receiver arrays, allowing high directionality and good rejection of reverberations, background noise, clutter and objects not of interest.
摘要翻译：提出了一种系统和方法，用于确定使用超声波传感器的人和物体的检测和位置。该系统允许通过大气条件将固定和移动的人和其他物体检测到至少300英尺的距离。本发明还通过使用发射器和接收器的阵列来提供增强的信号处理，其中一个或多个发射器阵列可以基本上垂直于一个或多个接收器阵列取向，允许高方向性和良好的反射混响，背景噪声，杂波和不感兴趣的对象

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