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71. 发明授权

US5774422A Method of amplitude shading in the time domain to control side lobes in the frequency domain 失效
标题翻译：时域中幅度阴影的方法来控制频域中的旁瓣
公开(公告)号：US5774422A
公开(公告)日：1998-06-30
申请号：US919179
申请日：1997-08-15
申请人： Michael J. Sullivan
发明人： Michael J. Sullivan
IPC分类号： G01S7/524 , G01S15/32 , G01S15/66 , G01S15/00
CPC分类号： G01S7/524 , G01S15/32 , G01S15/66 , Y10S367/905
摘要： A method of amplitude shading in the time domain is used to control side es in the frequency domain. Each of a plurality of limited dynamic range amplifiers is capable of generating a corresponding output with a frequency response when input power is applied thereto. The amplitude of the input power supplied to each amplifier is controlled in accordance with an amplitude shading function in order to modify each of the corresponding amplifier outputs. Each amplifier output is modified such that the width of each main lobe is realized while the side lobes are reduced. The amplitude shading function used by the present method is a one-half cycle cos.sup.2 function with a DC offset.
摘要翻译：使用时域中的幅度阴影的方法来控制频域中的旁瓣。当施加输入功率时，多个有限动态范围放大器中的每一个能够产生具有频率响应的相应输出。根据幅度阴影功能来控制提供给每个放大器的输入功率的幅度，以便修改每个相应的放大器输出。每个放大器输出被修改，使得在旁瓣减小时实现每个主瓣的宽度。本方法使用的幅度阴影功能是具有DC偏移的半周期cos2函数。

72. 发明授权

US5515853A Three-dimensional digital ultrasound tracking system 失效
标题翻译：三维数字超声跟踪系统
公开(公告)号：US5515853A
公开(公告)日：1996-05-14
申请号：US411959
申请日：1995-03-28
申请人： Wayne L. Smith , Ivan Vesely , Andrew W. Gubbels
发明人： Wayne L. Smith , Ivan Vesely , Andrew W. Gubbels
IPC分类号： A61B10/02 , A61B5/042 , A61B5/06 , A61B8/08 , A61B8/12 , A61B17/34 , A61B18/14 , A61B19/00 , A61M25/01 , A61M25/08 , G01H3/00 , G01H5/00 , G01S5/18 , G01S7/52 , G01S7/521 , G01S7/62 , G01S11/14 , G01S15/02 , G01S15/10 , G01S15/66 , G01S15/87 , G01S15/88 , G01S15/89 , A61B8/00
CPC分类号： A61M25/0105 , A61B34/20 , A61B5/0422 , A61B5/06 , A61B8/0833 , A61B8/4245 , A61B8/483 , A61B90/10 , A61B90/17 , A61B90/36 , G01H3/00 , G01H5/00 , G01S11/14 , G01S15/66 , G01S15/87 , G01S15/876 , G01S15/88 , G01S15/8993 , G01S5/18 , G01S7/5206 , G01S7/52074 , G01S7/52079 , G01S7/6245 , A61B17/3403 , A61B18/14 , A61B2034/2051 , A61B2034/2063 , A61B2034/2072 , A61B2090/363 , A61B2090/378 , A61B2090/3908 , A61B2090/3929 , A61B2090/3958 , A61B2560/045 , A61B2562/0209 , A61B2562/043 , A61B5/4519 , A61B5/4528 , A61B8/12 , A61B90/11 , A61B90/39 , A61M2025/0166 , G01S15/025 , G01S15/101 , G01S15/899 , G01S7/52003 , Y10S128/916
摘要： A method and apparatus for simultaneous measurement of multiple distances by means of networked piezoelectric transducers. Through the use of high frequency digital counters, the propagation delay between the activation of an ultrasonic transducer and the reception by similar transducers is quickly and accurately defined. By alternating the duty cycle between transmit and receive modes, the system can track and triangulate the three-dimensional positions for each transducer.
摘要翻译：一种通过网络压电换能器同时测量多个距离的方法和装置。通过使用高频数字计数器，快速准确地定义了超声换能器的激活与类似换能器的接收之间的传播延迟。通过交替发送和接收模式之间的占空比，系统可以跟踪和三角测量每个传感器的三维位置。

73. 发明授权

US5506817A Enhanced adaptive statistical filter providing sparse data stochastic mensuration for residual errors to improve performance for target motion analysis noise discrimination 失效
标题翻译：增强的自适应统计滤波器为剩余误差提供稀疏数据随机测量，以改善目标运动分析噪声识别的性能
公开(公告)号：US5506817A
公开(公告)日：1996-04-09
申请号：US449474
申请日：1995-05-25
申请人： Francis J. O'Brien, Jr.
发明人： Francis J. O'Brien, Jr.
IPC分类号： G01S13/52 , G01S15/52 , G01S15/66
CPC分类号： G01S13/52 , Y10S367/901
摘要： An adaptive statistical filter system for receiving a data stream compris a series of data values from a sensor associated with successive points in time. Each data value includes a data component representative of the motion of a target and a noise component, with the noise components of data values associated with proximate points in time being correlated. The adaptive statistical filter system includes a prewhitener, a plurality of statistical filters of different orders, stochastic decorrelator and a selector. The prewhitener generates a corrected data stream comprising corrected data values, each including a data component and a time-correlated noise component. The plural statistical filters receive the corrected data stream and generate coefficient values to fit the corrected data stream to a polynomial of corresponding order and fit values representative of the degree of fit of corrected data stream to the polynomial. The stochastic decorrelator uses a spatial Poisson process statistical significance test to determine whether the fit values are correlated. If the test indicates the fit values are not randomly distributed, it generates decorrelated fit values using an autoregressive moving average methodology which assesses the noise components of the statistical filter. The selector receives the decorrelated fit values and coefficient values from the plural statistical filters and selects coefficient values from one of the filters in response to the decorrelated fit values. The coefficient values are coupled to a target motion analysis module which determines position and velocity of a target.
摘要翻译：一种自适应统计滤波器系统，用于接收包括与连续的时间点相关联的传感器的一系列数据值的数据流。每个数据值包括表示目标的运动的数据分量和噪声分量，其中与近似时间点相关联的数据值的噪声分量相关。自适应统计滤波器系统包括预白化器，不同阶数的多个统计滤波器，随机解相关器和选择器。预白化器产生包括校正数据值的校正数据流，每个数据值包括数据分量和时间相关噪声分量。多个统计滤波器接收经校正的数据流并生成系数值以将校正的数据流拟合为对应次序的多项式和表示校正数据流与多项式的拟合度的拟合值。随机解相关器使用空间泊松过程统计显着性检验来确定拟合值是否相关。如果测试表明拟合值不是随机分布的，则使用自回归移动平均法来估计统计滤波器的噪声分量来生成解相关拟合值。选择器从多个统计滤波器接收去相关拟合值和系数值，并根据解相关拟合值从滤波器之一中选择系数值。系数值耦合到确定目标的位置和速度的目标运动分析模块。

74. 依法登记的发明

USH1231H Antiship torpedo defense system 失效
公开(公告)号：USH1231H
公开(公告)日：1993-09-07
申请号：US28639
申请日：1979-04-09
申请人： William E. Richards
发明人： William E. Richards
IPC分类号： G01S7/499 , G01S15/42 , G01S17/42 , G01S15/66
CPC分类号： G01S17/42 , G01S7/499 , G01S15/42
摘要： The detection and localization of an antiship torpedo is accomplished by ustic and optical means. A ship's sonar determines the approximate location of the incoming torpedo and a laser scans this location with energy in the blue-green spectrum. Surface reflections are gated out of a linear detector array and reflected portions of the scanning beam which penetrate the water's surface are divided among the elements of the linear detector array into field of view element signals. These field of view element signals are subsequently compared in time and amplitude to determined disparities between them which point to the torpedo's position, depth and bearing. Optionally, spectral and polarizing filters are provided to enhance the signal to noise ratios and to facilitate signal processing.

75. 发明授权

US4180793A PSK pulse synthesizer 失效
标题翻译： PSK脉冲合成器
公开(公告)号：US4180793A
公开(公告)日：1979-12-25
申请号：US900211
申请日：1978-04-26
申请人： Alan L. Lindstrum
发明人： Alan L. Lindstrum
IPC分类号： G01S15/66 , H04B11/00 , H04L27/20 , H04B1/02
CPC分类号： G01S15/66 , H04B11/00 , H04L27/2092
摘要： A phase shift keyed (PSK) pulse synthesizer which is part of an acoustic transmitter located in an underwater vehicle to provide identification and tracking of the vehicle as well as telemetry data when used on an instrumented underwater tracking range. The synthesizer is synchronized with the range time standard and generates phase coded pulses in a format suitable for input to an amplifier. A timing circuit divides a high frequency clock to produce square wave outputs at the desired frequency. A programmed read only memory (PROM) contains the identification code and is addressed from the timing circuit. A phase shift modulator combines the desired frequency with signals from the PROM and from a telemetry data generator to provide the amplifier with a digital analog of the desired acoustic message to be transmitted.
摘要翻译：相移键控（PSK）脉冲合成器，其是位于水下车辆中的声发射器的一部分，以在仪器化的水下跟踪范围上使用时提供车辆的识别和跟踪以及遥测数据。合成器与范围时间标准同步，并以适合于输入到放大器的格式生成相位编码脉冲。定时电路将高频时钟分频以产生所需频率的方波输出。编程只读存储器（PROM）包含识别码，并从定时电路寻址。相移调制器将期望的频率与来自PROM的信号和来自遥测数据发生器的信号组合，以向放大器提供要传输的期望的声消息的数字模拟。

76. 发明授权

US4179681A Target tracking sonar signal processing and display system 失效
标题翻译：目标跟踪声纳信号处理和显示系统
公开(公告)号：US4179681A
公开(公告)日：1979-12-18
申请号：US339664
申请日：1973-03-05
申请人： William J. Zehner , Henry L. Warner
发明人： William J. Zehner , Henry L. Warner
IPC分类号： G01S15/66 , G01S9/66 , G01S7/62
CPC分类号： G01S15/66
摘要： A sonar signal processing and display system is described which converts log return data to digital form for storage in a magnetic core memory, from which the data can be reconstituted as analog video signals for CRT display at a higher frame rate. Described are means for comparing new data to old to select updating data for the memory, and means for effecting CRT display of moving target tracks in a color distinct from stationary background returns.
摘要翻译：描述了一种声纳信号处理和显示系统，其将模拟返回数据转换为数字形式以存储在磁芯存储器中，从而可以将数据重构为用于CRT显示的较高帧速率的模拟视频信号。描述了用于将新数据与旧数据进行比较以选择存储器的更新数据的装置，以及用于以不同于固定背景返回的颜色来实现移动目标轨道的CRT显示的装置。

77. 发明授权

US4138657A Shipboard apparatus for measuring ocean currents 失效
标题翻译：用于测量洋流的船舶设备
公开(公告)号：US4138657A
公开(公告)日：1979-02-06
申请号：US844995
申请日：1977-10-25
申请人： David G. Shave
发明人： David G. Shave
IPC分类号： G01S15/18 , G01S15/58 , G01S15/60 , G01S15/66 , G01S9/66
CPC分类号： G01S15/60 , G01S15/18 , G01S15/582 , G01S15/66
摘要： A survey ship proceeds along a desired track as determined by precision navigational aids. A doppler sonar is programmed to receive returns from various water masses circulating at various depths between the ship and the water bottom. The doppler sonar scans the different depths by changing the signal return-time window. The ship's track resolved with the water-current velocity components to obtain a resolved water current vector. The doppler sonar may be an integral part of the navigation system. In such a case, the doppler sonar will be commanded to lock on the water bottom at selected intervals to determine the true ship's track and at other intervals, the sonar will track one or more water masses. Alternatively, two sonar signal receivers may be used, one to continuously track the water bottom and one to scan the water masses at various depths.
摘要翻译：调查船沿着精确导航辅助设备确定的所需轨道进行。多普勒声纳被编程为接收在船舶和水底之间的各种深度循环的各种水质的回报。多普勒声纳通过改变信号返回时间窗口扫描不同的深度。用水流速度分量解决船舶轨道，以获得解决的水流矢量。多普勒声纳可能是导航系统的组成部分。在这种情况下，多普勒声纳将被命令以选定的间隔锁定在水底，以确定真实的船的轨道，并且在其他间隔，声纳将跟踪一个或多个水质。或者，可以使用两个声纳信号接收器，一个用于连续跟踪水底，一个用于扫描各种深度的水体。

78. 发明公开

US20230364488A1 ELECTRONIC TRACKING SYSTEM WITH HEADS UP DISPLAY 审中-公开
公开(公告)号：US20230364488A1
公开(公告)日：2023-11-16
申请号：US18359956
申请日：2023-07-27
申请人： NIKE, Inc.
发明人： Nicholas A. Leech
IPC分类号： A63B71/06 , A63B69/36 , A63B24/00 , A63B37/00 , A63B43/00 , A63B43/06 , G06F3/01 , G06F3/03 , G02B27/01 , G06F3/0346 , G01S17/66 , G01S13/66 , G01S13/86 , G01S15/66 , G01S19/19 , G02B27/00
CPC分类号： A63B71/0622 , A63B69/3658 , A63B24/0021 , A63B71/0619 , A63B37/0072 , A63B43/008 , A63B43/06 , G06F3/011 , G06F3/0304 , G02B27/017 , G06F3/0346 , G01S17/66 , G01S13/66 , G01S13/867 , G01S15/66 , A63B69/3605 , A63B24/0062 , A63B69/3608 , G01S19/19 , G02B27/0093 , G02B27/0172 , A63B2024/0034 , A63B2071/0666 , A63B2220/13 , A63B2220/35 , A63B2220/30 , A63B2220/806 , A63B2225/50 , A63B2024/0025 , A63B2024/0028 , A63B2024/0053 , A63B2220/12 , A63B2220/802 , A63B2220/805 , A63B2220/833 , A63B2220/836 , A63B2225/54 , G02B2027/0178 , G02B2027/0138 , G02B2027/014 , G02B2027/0187 , A63B2024/0056 , A63B2071/0691 , A63B2220/20 , A63B2225/20 , G02B2027/0141
摘要： Electronic tracking systems are disclosed for assisting users with locating objects in a sporting environment. One such system includes a ball tracking component that tracks a game ball while moving in the sporting environment, and a heads up display that is worn by the user. This heads up display has an electronic display screen with a transparent display area that dynamically displays images within the user's field of view. A processor, which communicates with the ball tracking component and heads up display, is programmed to detect movement of the game ball, and responsively determine launch characteristics and/or flight characteristics of the moving game ball. The heads up display displays the launch/flight characteristics contemporaneous with an object indication adjacent to or superimposed over the moving game ball as the game ball is visible through the transparent display area of the display screen within the user's field of view.

79. 发明授权

US11719814B2 System and method for mobile platform operation 有权
公开(公告)号：US11719814B2
公开(公告)日：2023-08-08
申请号：US17153176
申请日：2021-01-20
申请人： SZ DJI TECHNOLOGY CO., LTD.
发明人： Jiebin Xie
IPC分类号： G01S15/93 , G01S15/08 , G01S15/66 , G01C21/16 , G08G5/04 , G08G9/02 , B64C39/02 , G01S19/01 , G05D1/10
CPC分类号： G01S15/93 , G01C21/183 , G01S15/08 , G01S15/66 , G08G5/04 , G08G9/02 , B64C39/024 , B64U2201/10 , G01S19/01 , G05D1/102
摘要： A method of controlling a mobile platform includes measuring a distance between the mobile platform and an object when the mobile platform is located at each of a plurality of positions to obtain a plurality of measured distances each being obtained at one of the plurality of positions. Location information of the plurality of positions of the mobile platform is obtained by an inertial measurement unit (IMU) on the mobile platform. The at least two distance sensors being configured to capture data from different directions. The method further includes determining a position of the object based on the plurality of measured distances and the location information and controlling the mobile platform to avoid the object based on the results of the determined position of the object.

80. 发明授权

US11585912B2 Systems and methods for virtual aperture radar tracking 有权
公开(公告)号：US11585912B2
公开(公告)日：2023-02-21
申请号：US17339608
申请日：2021-06-04
申请人： Oculii Corp.
发明人： Lang Hong , Steven Hong
IPC分类号： G01S13/00 , G01S13/72 , G01S7/42 , G01S13/90 , G01S13/44 , G01S7/52 , G01S13/86 , G01S13/931 , G01S13/66 , G01S13/02 , G01S15/66
摘要： A system for virtual aperture array radar tracking includes a transmitter that transmits first and second probe signals; a receiver array including a first plurality of radar elements positioned along a first radar axis; and a signal processor that calculates a target range from first and second reflected probe signals, corresponds signal instances of the first reflected probe signal to physical receiver elements of the radar array, corresponds signal instances of the second reflected probe signal to virtual elements of the radar array, calculates a first target angle between a first reference vector and a first projected target vector from the first reflected probe signal, and calculates a position of the tracking target relative to the radar array from the target range and first target angle.

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