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1. 发明授权

US06750805B1 Full polarization synthetic aperture radar automatic target detection algorithm 有权
标题翻译：全极化合成孔径雷达自动目标检测算法
公开(公告)号：US06750805B1
公开(公告)日：2004-06-15
申请号：US10324769
申请日：2002-12-20
申请人： William L. Cameron
发明人： William L. Cameron
IPC分类号： G01S1304
CPC分类号： G01S13/90 , G01S7/024 , G01S7/412
摘要： A method, apparatus and computer-readable medium having stored thereon instructions for automatic detection of desired targets from radar data are disclosed. For each working point in a set of radar data, from a scattering matrix derived from collected radar data, a working total radar cross section and a working asymmetry angle are calculated. The working total radar cross section and the working asymmetry angle are then evaluated to determine whether the working point should be classified as a target point or a clutter point. The method and apparatus suitably may employ a two-dimensional table of total radar cross sections and asymmetry angles previously classified as signifying target points or clutter points. Reading from the look-up table, the working point is classified as a target point or a clutter point.
摘要翻译：公开了一种其上存储有用于从雷达数据自动检测所需目标的指令的方法，装置和计算机可读介质。对于一组雷达数据中的每个工作点，从采集的雷达数据得到的散射矩阵中，计算出工作总雷达横截面和工作不对称角度。然后评估工作总雷达横截面和工作不对称角度，以确定工作点是否应分类为目标点或杂波点。该方法和装置适当地使用总共雷达横截面和先前分类为表示目标点或杂波点的不对称角度的二维表。从查找表读取，工作点被分类为目标点或杂点。

2. 发明授权

US06825456B2 Signal processing for object detection system 失效
标题翻译：物体检测系统的信号处理
公开(公告)号：US06825456B2
公开(公告)日：2004-11-30
申请号：US10060641
申请日：2002-01-29
申请人： George G. Chadwick , Jerry Hausner
发明人： George G. Chadwick , Jerry Hausner
IPC分类号： G01S1304
CPC分类号： G01S13/887 , G01S7/025 , G01S7/412 , G01S2007/2883 , G01V3/12
摘要： Methods and apparatus for detecting objects. In one embodiment, a person entering a secured or “Safe Zone™” is illuminated with low-power polarized radio waves. Differently polarized waves which are reflected back from the person are collected and measured. In a preferred embodiment, concealed weapons are detected by calculating the difference of a pair of differences (Delta A and B) of different polarized reflected energy (upper and lower curves in the two graphs) in the time domain, and by using signal processing methods and apparatus to improve the reliability of the detection process.
摘要翻译：用于检测物体的方法和装置。在一个实施例中，进入安全或“安全区域（TM）”的人被低功率偏振无线电波照射。收集和测量从人体反射回来的不同偏振波。在优选实施例中，通过计算时域中的不同偏振反射能量（两个图中的上下曲线）的差异（ΔA和B）的差异，并且通过使用信号处理方法来检测隐藏的武器以及提高检测处理的可靠性的装置。

3. 发明授权

US06400312B1 Method and device for object detection 有权
标题翻译：物体检测方法和装置
公开(公告)号：US06400312B1
公开(公告)日：2002-06-04
申请号：US09575856
申请日：2000-05-19
申请人： Georg de Laval
发明人： Georg de Laval
IPC分类号： G01S1304
CPC分类号： G01S13/0218 , G01S7/415 , G01S2013/0227
摘要： Objects of interest are detected which are below the horizon and which emit or are the cause of pressure wave fronts. By emitting radar pulses that interact with the pressure wave fronts that appear above the radar horizon and then by analysis of the detected echo signals in the range bins, the existence of a pressure wave front can be determined. Then, it is evaluated if this pressure wave front indicates the presence of an object of interest or not. The transmitted radar pulses in relation to the detected echoes can be used for identifying the object of interest. The emitted radar pulses may have a wavelength which is a multiple of the expected wavelength of the pressure wave fronts.
摘要翻译：检测到感兴趣的物体，它们低于地平线，并且发射或是压力波前的原因。通过发射与雷达水平线上方出现的压力波前相互作用的雷达脉冲，然后通过分析检测到的回波信号，可以确定压力波前的存在。然后，评估该压力波前是否表示存在感兴趣的对象。相对于检测到的回波的发射的雷达脉冲可以用于识别感兴趣的对象。发射的雷达脉冲可以具有波长，其是压力波前沿的预期波长的倍数。

4. 发明授权

US06806821B2 Apparatus and method for rapid detection of objects with time domain impulsive signals 失效
标题翻译：用于快速检测具有时域脉冲信号的物体的装置和方法
公开(公告)号：US06806821B2
公开(公告)日：2004-10-19
申请号：US10385629
申请日：2003-03-12
申请人： Donald P. McLemore
发明人： Donald P. McLemore
IPC分类号： G01S1304
CPC分类号： G01S13/888 , G01S7/282 , G01S7/285 , G01S7/292 , G01S7/412 , G01S13/0209 , G01S13/04 , G01S13/18 , G01S13/881 , G01S13/883 , G01S13/886 , G01S13/913 , G01S13/9303 , G01S13/931 , G01S2013/916 , G01S2013/9325
摘要： A method and system are disclosed for detecting objects of interest in a target area using ultra wide band (UWB) RF signals. A transmitter and antenna array generate ultra wide band RF impulsive signals that are used to probe a target area that may include an object of interest. An antenna and a signal processor receive return signals from the target area and process the return signal to generate a set of coordinates. The coordinates of the processed return signals are compared to coordinates of known objects in a pre-existing database to determine whether there is a match between the return signal and a known object. When there is an indication of a match, the existence of the known object is displayed to an operator of the system.
摘要翻译：公开了一种用于使用超宽带（UWB）RF信号来检测目标区域中的感兴趣对象的方法和系统。发射机和天线阵列产生用于探测可能包括感兴趣对象的目标区域的超宽带RF脉冲信号。天线和信号处理器从目标区域接收返回信号并处理返回信号以产生一组坐标。将经处理的返回信号的坐标与预先存在的数据库中的已知对象的坐标进行比较，以确定返回信号和已知对象之间是否存在匹配。当存在匹配的指示时，将已知对象的存在显示给系统的操作者。

5. 发明授权

US06501415B1 Highly integrated single substrate MMW multi-beam sensor 有权
标题翻译：高度集成的单衬底MMW多光束传感器
公开(公告)号：US06501415B1
公开(公告)日：2002-12-31
申请号：US09931277
申请日：2001-08-16
申请人： Luis M. Viana , Michael Joseph Delcheccolo , Joseph S. Pleva , Mark E. Russell , Walter Gordon Woodington , H. Barteld Van Rees , Stephen P. LeBlanc
发明人： Luis M. Viana , Michael Joseph Delcheccolo , Joseph S. Pleva , Mark E. Russell , Walter Gordon Woodington , H. Barteld Van Rees , Stephen P. LeBlanc
IPC分类号： G01S1304
CPC分类号： B60Q9/008 , B60K31/0008 , B60T2201/08 , B60T2201/081 , B60T2201/088 , B60W2530/10 , B60W2550/304 , G01S7/023 , G01S7/032 , G01S7/038 , G01S7/06 , G01S7/288 , G01S7/352 , G01S7/354 , G01S7/4004 , G01S7/4008 , G01S7/4021 , G01S13/04 , G01S13/282 , G01S13/343 , G01S13/346 , G01S13/48 , G01S13/584 , G01S13/726 , G01S13/87 , G01S13/931 , G01S2007/356 , G01S2013/0245 , G01S2013/9321 , G01S2013/9332 , G01S2013/9375 , G01S2013/9378 , G01S2013/9385 , G01S2013/9389 , H01Q1/3233 , H01Q1/3258 , H01Q1/3283 , H01Q1/38 , H01Q1/42 , H01Q3/24 , H01Q3/40 , H01Q13/10 , H01Q13/18 , H01Q21/0043 , H01Q21/0075 , H01Q21/0087 , H01Q21/065 , H01Q25/00
摘要： A multiple beam array antenna system comprises a plurality of radiating elements provided from stripline-fed open-ended waveguide coupled to a Butler matrix beam forming network. The Butler matrix beam forming network is coupled to a switched beam combining circuit. The antenna can be fabricated as a single Low Temperature Co-fired Ceramic (LTCC) circuit.
摘要翻译：多波束阵列天线系统包括多个辐射元件，其由耦合到巴特勒矩阵波束形成网络的带状线馈入的开放式波导提供。巴特勒矩阵波束形成网络耦合到切换波束组合电路。天线可以制造成单个低温共烧陶瓷（LTCC）电路。

6. 发明授权

US06756934B1 Target shadow detector for synthetic aperture radar 有权
标题翻译：用于合成孔径雷达的目标阴影检测器
公开(公告)号：US06756934B1
公开(公告)日：2004-06-29
申请号：US10633284
申请日：2003-08-01
申请人： Joe C. Chen , Albert Ezekiel
发明人： Joe C. Chen , Albert Ezekiel
IPC分类号： G01S1304
CPC分类号： G06K9/3241 , G01S7/412 , G01S13/9035
摘要： Targets imaged by radar systems typically have shadows associated with them. Target detection and identification is enhanced by analyzing the shadow characteristics of a suspected target. Features of the shadow cast by the suspected target enhance the identification process. Authenticating the suspected target shadow as being indeed cast by the target comprises a) Generating a radar image using radar returns, the radar image containing both the target and its suspected target shadow; b) Forming a pentagonal perimeter adjacent to the target (within the radar image), the pentagonal perimeter chosen to contain the suspected target shadow, the pentagonal perimeter separating the target from its suspected target shadow; c) Testing the suspected target shadow within said pentagonal perimeter to authenticate that the suspected target shadow is cast by the target. One aspect of the testing performed on the suspect target shadow uses a 2 by 2 dilation and majority filter. Other tests performed are an adjacent overlap test, an edge pixel count test, a maximum area and minimum distance test as well as an area threshold test. The original radar image is converted to a magnitude only form from its I and Q components and a magnitude thresholding is applied to the radar image to obtain a binary image.
摘要翻译：由雷达系统成像的目标通常具有与其相关联的阴影。通过分析可疑目标的阴影特征来增强目标检测和识别。怀疑目标影子的特征增强识别过程。将目标影像认定为确定目标的投射方式a）使用雷达回报生成雷达图像，雷达图像包含目标及其可疑的目标阴影; b）形成与目标相邻的五边形周边（雷达图像内）），五角形周界被选择为包含可疑的目标阴影，五角形周界将目标与其可疑的目标阴影分开; c）测试所述五角形周界内的可疑目标阴影，以验证目标投射的可疑目标阴影。在可疑目标影子上进行的测试方面采用2×2扩张和多数过滤器。执行的其他测试是相邻的重叠测试，边缘像素计数测试，最大面积和最小距离测试以及面积阈值测试。原始雷达图像从其I和Q分量转换为仅数量级的形式，将阈值应用于雷达图像以获得二进制图像。

7. 发明授权

US06680686B1 Remote ionizing radiation detector 失效
标题翻译：远程电离辐射探测器
公开(公告)号：US06680686B1
公开(公告)日：2004-01-20
申请号：US10213627
申请日：2002-08-06
申请人： Robert J. Howard
发明人： Robert J. Howard
IPC分类号： G01S1304
CPC分类号： G01S13/04 , G01S13/88
摘要： A method and apparatus for the detection of radioactive material in an area is disclosed. The apparatus comprises a transmitter operatively arranged to transmit electromagnetic radiation, a receiver operatively arranged to measure an intensity of the electromagnetic radiation, and processing means operatively arranged to determine the presence of radioactive material based on the intensity measurement. Two receiver configurations are possible. In the first, the receiver measures the intensity of the electromagnetic radiation reflected by ion tracks in the air proximate to the area scanned for radioactive material. Alternatively, the receiver measures the intensity of the electromagnetic radiation transmitted by the air proximate to the area scanned for radioactive material.
摘要翻译：公开了一种用于检测区域中放射性物质的方法和装置。该装置包括可操作地布置成传输电磁辐射的发射器，可操作地布置成测量电磁辐射的强度的接收器，以及可操作地布置成基于强度测量来确定放射性物质的存在的处理装置。两种接收机配置是可能的。首先，接收机测量靠近扫描放射性物质区域的空气中的离子轨迹所反射的电磁辐射的强度。或者，接收器测量靠近扫描放射性物质区域的空气传播的电磁辐射的强度。

8. 发明授权

US06667724B2 Impulse radar antenna array and method 有权
公开(公告)号：US06667724B2
公开(公告)日：2003-12-23
申请号：US09998480
申请日：2001-11-30
申请人： Mark A. Barnes , Charles G. Gilbert , Herbert U. Fluhler , Hans G. Schantz , Soumya K. Nag , David M. Dickson
发明人： Mark A. Barnes , Charles G. Gilbert , Herbert U. Fluhler , Hans G. Schantz , Soumya K. Nag , David M. Dickson
IPC分类号： G01S1304
CPC分类号： G01S13/888 , G01S13/0209 , H01Q1/38 , H01Q1/525 , H01Q21/08
摘要： An antenna array comprising a ground plane and a plurality of elements mounted thereon, said elements being capable of emitting and receiving ultra wideband emissions. Elements are arrayed on the ground plane in two parallel rows, a transmitting row, and a receiving row, such that a given element in the receiving row is aligned in at least one direction with a corresponding element in the transmitting row. Additionally, the elements are configured on the ground plane to elicit a symmetrical product response in the azimuthal plane, and to produce horizontally polarized signals. An alternative embodiment places the elements with unique inter-element spacing within the rows. An embodiment comprises a fence structure between rows. A method for use comprises the step of transmitting a signal via an element in the transmitting row and receiving said signal through an element in the receiving row, not aligned with the transmitting element.

9. 发明授权

US06426716B1 Modulated pulse doppler sensor 有权
标题翻译：调制脉冲多普勒传感器
公开(公告)号：US06426716B1
公开(公告)日：2002-07-30
申请号：US09794268
申请日：2001-02-27
申请人： Thomas E. McEwan
发明人： Thomas E. McEwan
IPC分类号： G01S1304
CPC分类号： G01S13/04 , G01S13/18 , G01S13/56
摘要： A range gated microwave motion sensor having adjustable minimum and maximum detection ranges with little response to close-in false alarm nuisances such as insects or vibrating panels. The sensor resolves direction of motion and can respond to target displacement in a selected direction and through a selected distance, in contrast to conventional hair-trigger motion sensors. A constant false alarm rate (CFAR) detector prevents false triggers from fluttering leaves, vibrating machinery, and RF interference. The sensor transmits an RF pulse and, after a modulated delay, mixes echo pulses with a mixer pulse. Thus, the echo pulses are modulated at the mixer output while transmit and mixer pulse artifacts remain unmodulated and easily filtered from the output. Accordingly, the sensor only responds to echoes that fall within its minimum and maximum range-gated region, and not to close-in or far-out objects. Applications for the low-cost system include indoor and outdoor burglar alarms, automotive security alarms, home and industrial automation, robotics, vehicle proximity sensors, cardiac motion detection, and a universal radar “bubble” detector.
摘要翻译：范围门控微波运动传感器，具有可调的最小和最大检测范围，对昆虫或振动板等近似的假警报滋扰几乎没有反应。与常规的头发触发运动传感器相反，传感器解决了运动方向，并且可以在所选方向上和通过选定距离响应目标位移。恒定的误报率（CFAR）检测器防止假触发器振动叶片，振动机械和RF干扰。传感器发射RF脉冲，并且在调制延迟之后将回波脉冲与混频器脉冲混合。因此，回波脉冲在混频器输出端被调制，而发射和混频器脉冲伪影保持未调制并且容易地从输出滤波。因此，传感器仅响应落在其最小和最大范围选通区域内的回波，而不对近距离或远离物体进行响应。低成本系统的应用包括室内和室外防盗报警器，汽车安全报警器，家庭和工业自动化，机器人，车辆接近传感器，心脏运动检测和通用雷达“气泡”检测器。

10. 发明授权

US06816107B2 Technique for changing a range gate and radar coverage 有权
标题翻译：改变范围门和雷达覆盖的技术
公开(公告)号：US06816107B2
公开(公告)日：2004-11-09
申请号：US10404316
申请日：2003-04-01
申请人： Joseph S. Pleva , Mark E. Russell , Walter Gordon Woodington , Michael Joseph Delcheccolo , H. Barteld Van Rees
发明人： Joseph S. Pleva , Mark E. Russell , Walter Gordon Woodington , Michael Joseph Delcheccolo , H. Barteld Van Rees
IPC分类号： G01S1304
CPC分类号： B60Q9/008 , B60K31/0008 , B60T2201/08 , B60T2201/081 , B60T2201/088 , B60W2530/10 , B60W2550/304 , G01S7/023 , G01S7/032 , G01S7/038 , G01S7/06 , G01S7/288 , G01S7/352 , G01S7/354 , G01S7/4004 , G01S7/4008 , G01S7/4021 , G01S13/04 , G01S13/282 , G01S13/343 , G01S13/346 , G01S13/48 , G01S13/584 , G01S13/726 , G01S13/87 , G01S13/931 , G01S2007/356 , G01S2013/0245 , G01S2013/9321 , G01S2013/9332 , G01S2013/9375 , G01S2013/9378 , G01S2013/9385 , G01S2013/9389 , H01Q1/3233 , H01Q1/3258 , H01Q1/3283 , H01Q1/38 , H01Q1/42 , H01Q3/24 , H01Q3/40 , H01Q13/10 , H01Q13/18 , H01Q21/0043 , H01Q21/0075 , H01Q21/0087 , H01Q21/065 , H01Q25/00
摘要： A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. In one embodiment, a zero crossing in the second derivative of the FFT output signal indicates the presence of an object. The range of the object is determined as a function of the frequency at which the zero crossing occurs. Also described is a detection table containing indicators of the presence or absence of an object within a respective radar beam and processing cycle. At least two such indicators are combined in order to detect the presence of an object within the detection zone and with changing range gates in each of the antenna beams the coverage of the detection zone can be varied.
摘要翻译：雷达检测处理包括计算FFT输出信号的导数以检测指定检测区域内的物体。在一个实施例中，FFT输出信号的二阶导数中的零交叉表示存在对象。物体的范围被确定为发生零交叉的频率的函数。还描述了一种检测表，其包含相应雷达波束内的对象的存在或不存在的指示符以及处理周期。至少两个这样的指示器被组合以便检测在检测区域内的物体的存在，并且在每个天线波束中改变范围门限，可以改变检测区域的覆盖范围。

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