公开(公告)号：US6002983A

公开(公告)日：1999-12-14

申请号：US968737

申请日：1997-08-27

申请人： Stephen William Alland ,  James Fredrick Searcy ,  Kevin Ray Wherry

发明人： Stephen William Alland ,  James Fredrick Searcy ,  Kevin Ray Wherry

IPC分类号： G01S7/41 ,  G01S13/42 ,  G01S13/66 ,  G01S13/93 ,  G06F17/10 ,  G01S13/00

CPC分类号： G01S13/66 ,  G01S13/42 ,  G01S13/931 ,  G01S7/411 ,  G01S2013/9346 ,  G01S2013/935

摘要： A method of operation for a motor vehicle object detection system is described, in which the extent angle of an identified target is accurately determined by applying a point source scatterer identification technique to data at the periphery of a composite return. Return amplitude data from one or more complete scans of the sensor beam are collected and compared with a target threshold to identify objects in the viewing angle, thereby forming an array of amplitude data associated with successive beam positions for each identified object. In each array, the left-most and right-most pair of amplitude data points associated with successive beam positions are selected and individually used to compute the angle of a point source scatterer which would be responsible for that data pair. The computed scatterer angles are taken as the left and right edges of the target and used to determine the angle extent of the identified object, which in turn, enables reliable determination as to whether the identified object is in or out of the vehicle travel path, and what, if any, vehicle response is appropriate to maintain a given headway or avoid a collision with the object.

摘要翻译： 描述了一种用于机动车辆物体检测系统的操作方法，其中通过将点源散射体识别技术应用于复合返回的周边的数据来准确地确定所识别的目标的范围角。 收集来自传感器光束的一个或多个完整扫描的返回振幅数据，并将其与目标阈值进行比较，以识别视角中的对象，从而形成与每个识别对象的连续波束位置相关联的幅度数据阵列。 在每个阵列中，选择与连续波束位置相关联的最左边和最右边的幅度数据点对，并分别用于计算将负责该数据对的点源散射体的角度。 将计算出的散射体角度作为目标的左边缘和右边缘，并用于确定识别的物体的角度范围，进而可以确定所识别的物体是否在车辆行驶路径内或外， 以及如果有的话，车辆响应适合于保持给定的进展或避免与物体的碰撞。

公开(公告)号：US5699068A

公开(公告)日：1997-12-16

申请号：US668455

申请日：1996-05-28

申请人： Anthony Cirineo

发明人： Anthony Cirineo

IPC分类号： G01S7/00 ,  G01S13/524 ,  G01S13/66 ,  G01S13/94

CPC分类号： G01S13/5242 ,  G01S7/003 ,  G01S13/66

摘要： A doppler video signal conditioning circuit comprising first, second and rd buffers which respectively receive a voltage controlled oscillator signal, a second intermediate frequency signal and a second local oscillator signal from a missile' radar receiver. The buffered voltage controlled oscillator, second intermediate frequency and second local oscillator signals are then supplied to a doppler processing circuit. The doppler processing circuit processes these signals, providing at its output a reconstructed doppler video signal which includes a marker which is 20 kHz above the frequency the missile's radar is tracking. The doppler processing circuit provides the reconstructed doppler video signal to an analog-to-digital converter. The analog-to-digital converter digitizes the reconstructed doppler video signal before supplying the digitized signal to a frame controller. The frame controller assembles the digital data of the reconstructed doppler video signal into a plurality of telemetry frames with each frame having 1024 eight bit words. The eight bit words of each telemetry frame are then supplied to a parallel to serial shift register which converts each word from a parallel format to a serial format. The frame controller also generates timing signals and control signals for the analog-to-digital converter and the serial to parallel shift register.

摘要翻译： 一种多普勒视频信号调理电路，包括分别从导弹雷达接收机接收压控振荡器信号，第二中频信号和第二本地振荡器信号的第一，第二和第三缓冲器。 然后将缓冲电压控制振荡器，第二中频和第二本地振荡器信号提供给多普勒处理电路。 多普勒处理电路处理这些信号，在其输出处提供重建的多普勒视频信号，其包括比导弹的雷达跟踪的频率高20kHz的标记。 多普勒处理电路将重建的多普勒视频信号提供给模数转换器。 在将数字化信号提供给帧控制器之前，模数转换器对重构的多普勒视频信号进行数字化。 帧控制器将重构的多普勒视频信号的数字数据组合成多个遥测帧，每帧具有1024个八位字。 然后，每个遥测帧的八位字被提供给并行到串行移位寄存器，其将每个字从并行格式转换为串行格式。 帧控制器还产生用于模数转换器和串行到并行移位寄存器的定时信号和控制信号。

公开(公告)号：US5565871A

公开(公告)日：1996-10-15

申请号：US386374

申请日：1995-02-10

申请人： John L. Aker ,  Robert S. Gammenthaler ,  Alan B. Mead

发明人： John L. Aker ,  Robert S. Gammenthaler ,  Alan B. Mead

IPC分类号： G01S7/00 ,  G01S7/02 ,  G01S7/288 ,  G01S13/02 ,  G01S13/58 ,  G01S13/60 ,  G01S13/66 ,  G01S13/86 ,  G01S13/87 ,  G01S13/92 ,  H03D9/06 ,  G01S15/60

CPC分类号： G01S7/023 ,  G01S13/86 ,  G01S13/92 ,  G01S7/003 ,  G01S13/58 ,  G01S13/60 ,  G01S13/66 ,  G01S13/87 ,  G01S2007/2883 ,  H03D9/0633

摘要： A police radar utilizing digital data transmission from the antenna unit to a separately housed counting and display unit. The antenna has a double balanced mixer to suppress even order harmonics. The counting and display unit has a computer programmed to perform digital signal processing on the digital data received from the antenna to improve the quality and accuracy of calculated speeds for patrol speed, strongest target speed and fastest target speed. Fastest target speed can be displayed simultaneously with strongest target speed. Signal processing techniques are used to suppress false signals caused by double and triple bounce, harmonics, ntermodulation products, video display terminal interference, etc.

摘要翻译： 利用数字数据从天线单元传输到独立的计数和显示单元的警察雷达。 天线具有双平衡混频器以抑制偶次谐波。 计数显示单元具有被编程为对从天线接收的数字数据进行数字信号处理的计算机，以提高巡航速度，最强目标速度和最快目标速度的计算速度的质量和精度。 最快的目标速度可以同时以最高的目标速度显示。 信号处理技术用于抑制由双重和三重反弹，谐波，调制产物，视频显示终端干扰等引起的假信号。

公开(公告)号：US5499195A

公开(公告)日：1996-03-12

申请号：US230041

申请日：1994-04-19

申请人： Patrick F. Castelaz

发明人： Patrick F. Castelaz

IPC分类号： G01S7/41 ,  G01S13/52 ,  G01S13/66 ,  G01S15/52

CPC分类号： G01S13/52 ,  G01S7/414 ,  G01S13/66 ,  G01S15/52 ,  G01S7/415

摘要： A fine grained multi-planar clutter rejection processor (10) for correlating multiple sets of data. The processor (10) maps each set of data onto a plurality of arrays (28-34). The data includes target data which is correlated between sets and clutter which is uncorrelated between sets of data. The system also includes a means for shifting (40) the positions of the second and subsequent arrays in a pattern which is larger for each successive array. In addition, a correlation identification unit (78) identifies the coordinate locations in the first array (28) which contain data points and which also contain data points in subsequent arrays in their shifted positions. In this way, data points identified in this manner are correlated and the remaining data points can be discarded as clutter. The processor (10) system is able to handle a very large number of data points per scan (over 100,000) over a high number of scans (such as eight). Due to its highly parallel approach, the total processing time is completely independent of the number of data points or scans.

摘要翻译： 一种用于关联多组数据的细粒度多平面杂波抑制处理器（10）。 处理器（10）将每组数据映射到多个阵列（28-34）上。 数据包括与数据集之间不相关的集合和杂波之间相关的目标数据。 该系统还包括用于以每个连续阵列更大的图案移位（40）第二阵列和后续阵列的位置（40）的装置。 此外，相关识别单元（78）识别包含数据点的第一阵列（28）中的坐标位置，并且还包含其移位位置中的后续阵列中的数据点。 以这种方式，以这种方式识别的数据点是相关的，并且剩余的数据点可以被丢弃。 处理器（10）系统能够在大量扫描（例如八个）上每次扫描（超过100,000次）处理非常大量的数据点。 由于其高度并行的方法，总处理时间完全独立于数据点或扫描的数量。

公开(公告)号：US5300933A

公开(公告)日：1994-04-05

申请号：US21661

申请日：1993-02-24

申请人： Joseph H. Discenza ,  C. Allen Butler

发明人： Joseph H. Discenza ,  C. Allen Butler

IPC分类号： G01S7/41 ,  G01S13/66 ,  G01S13/89 ,  G01S13/93 ,  G01S13/91

CPC分类号： G01S13/931 ,  G01S13/66 ,  G01S13/89 ,  G01S7/411 ,  G01S2013/9335

摘要： A process for reducing the likelihood of runway incursions wherein the major components of an aircraft are individually tracked by radar instead of tracking only the overall image of the aircraft to more accurately predict possible runway incursions due to the rapid and accurate indication of any change in aircraft orientation during each sweep of the radar.

摘要翻译： 一种减少跑道入侵可能性的过程，其中飞机的主要部件由雷达单独跟踪，而不是仅跟踪飞机的整体图像，以更准确地预测可能的跑道入侵，因为飞机的任何变化的快速和准确的指示 在雷达的每次扫描期间定向。

公开(公告)号：US5130715A

公开(公告)日：1992-07-14

申请号：US647582

申请日：1991-01-29

申请人： Hajime Yanagisawa

发明人： Hajime Yanagisawa

IPC分类号： G01S7/02 ,  G01S13/42 ,  G01S13/66 ,  G01S13/72 ,  G01S13/87 ,  H01Q25/00

CPC分类号： H01Q25/00 ,  G01S13/426 ,  G01S13/66 ,  G01S13/87

摘要： A method of managing beams transmitted and received by a plurality of phased array antennas. In a search mode, the phased array antennas transmit searching pulses synchronously in a search mode. In a tracking mode, targets tracked by the phased array antennas are divided to a plurality of groups on the basis of pulsed repetition rate. Then, for the respective divided groups, transmission timings of tracking pulses to be sent form the phased array antennas are calculated by using ranges of the targets belonging to the respective groups so that transmission and reception operations do not occur simultaneously, thereby enabling the simultaneous usage of the phased array antennas.

公开(公告)号：US4959800A

公开(公告)日：1990-09-25

申请号：US197015

申请日：1988-05-20

申请人： Richard L. Woolley

发明人： Richard L. Woolley

IPC分类号： G01S13/66

CPC分类号： G01S13/66

摘要： A method for determining the position and velocity of a target in inertial space including the steps of (a) tracking the target and providing three orthogonal velocity components in inertial space; (b) computing the scalar velocity V.sub.T of the target in an inertial reference frame by providing the square root of the sum of the squares of the orthogonal velocity components; and (c) computing the aspect angle .beta..sub.cue of the target relative to a line-of-sight to a platform as an inverse sinusoidal function of the ratio of one of said orthogonal components and V.sub.T, when such tracking data is available, and otherwise; (d) estimating actual target maneuver to develop a minimum uncertainty zone using an assumed worst case lateral target acceleration. Also disclosed are techniques for bounding the aspect angle and for providing global range and range rate estimates which account for uncertainties in the measurements of target and platform ranges and velocities.

摘要翻译： 一种用于确定目标在惯性空间中的位置和速度的方法，包括以下步骤：（a）跟踪目标并在惯性空间中提供三个正交速度分量; （b）通过提供正交速度分量的平方和的平方根来计算惯性参考系中目标的标量速度VT; 以及（c）当所述跟踪数据可用时，将所述目标相对于平台的视线的方位角βcue计算为所述正交分量之一和VT之间的比率的逆正弦函数，否则 ; （d）使用假定的最差情况的横向目标加速度估计实际目标操纵以形成最小不确定区域。 还公开了用于限制方位角并用于提供全局范围和范围速率估计的技术，其考虑了目标和平台范围和速度的测量中的不确定性。

公开(公告)号：US4942403A

公开(公告)日：1990-07-17

申请号：US281395

申请日：1988-12-08

申请人： Hiroshi Yokoyama

发明人： Hiroshi Yokoyama

IPC分类号： H01Q3/30 ,  G01S7/02 ,  G01S13/22 ,  G01S13/42 ,  G01S13/66

CPC分类号： G01S13/66 ,  G01S13/227 ,  G01S13/426

摘要： A phased-array radar capable of electronically directing a directional beam of an antenna in any of N different directions, i.e., direction .theta..sub.1 to direction .theta..sub.N. Scanning of the directional beam is effected in any of a long-range mode for detecting and tracking a target cruising at a long range from the radar and a short-range mode detecting and tracking a target cruising at a short range. This reduces the data rate and thereby increases the target information updating frequency associated with a short-range target.

公开(公告)号：US4922256A

公开(公告)日：1990-05-01

申请号：US273465

申请日：1988-11-18

申请人： Robert W. Brandstetter

发明人： Robert W. Brandstetter

IPC分类号： G01R23/17 ,  G01S7/02 ,  G01S13/26 ,  G01S13/66

CPC分类号： G01S7/021 ,  G01R23/17 ,  G01S13/26 ,  G01S13/66

摘要： A tracking receiver is disclosed which utilizes optical processing for detecting and tracking input broadband chirp like emission signals. The tracking receiver includes a scanning local oscillator, the output signal of which is caused to be scanned in frequency. A mixer mixes the unknown input signal and the local oscillator output signal to produce an intermediate frequency (IF), frequency difference signal. The IF signal is analyzed in an optical spectrum analyzer which includes an acoustooptical modulator for modulating a beam of radiation, as a laser beam, with the intermediate frequency signal, and optical means, as a lens, for producing a spatial frequency distribution of the intermediate frequency spectrum in a Fourier plane. A photodetector array is provided in the Fourier plane for detecting the spatial spectrum. A processor processes the output of the photodetector for temporally stable grouped intensity patterns caused by an input spectra signal varying in frequency near the scan rate of the local oscillator. The processor is responsive thereto to control a programmer which controls the frequency of the local oscillator to cause it to approach and become equal to the frequency of the input spectra signal. A recorder is provided for recording the output of the scanning local oscillator, and the scanning local oscillator is controlled to proceed through a programmed frequency scan pattern.

摘要翻译： 公开了一种利用光学处理来检测和跟踪输入宽带啁啾样发射信号的跟踪接收机。 跟踪接收机包括扫描本地振荡器，其输出信号被频率扫描。 混频器混合未知输入信号和本地振荡器输出信号以产生中频（IF）频差信号。 IF信号在光谱分析仪中进行分析，该光谱分析仪包括用于调制作为激光束的辐射束与中频信号的声光调制器，以及作为透镜的光学装置，用于产生中间体的空间频率分布 傅里叶平面中的频谱。 在傅立叶平面中设置光电检测器阵列，用于检测空间光谱。 处理器处理光电检测器的输出，用于由本地振荡器的扫描速率附近的频率变化的输入频谱信号引起的时间稳定的分组强度图案。 处理器对其进行响应以控制编程器，其控制本地振荡器的频率使其接近并变为等于输入频谱信号的频率。 提供了用于记录扫描本地振荡器的输出的记录器，并且控制扫描本地振荡器以进行编程的频率扫描模式。

公开(公告)号：US4649390A

公开(公告)日：1987-03-10

申请号：US520408

申请日：1983-08-05

申请人： LaVern A. Andrews ,  Dennis Moraitis

发明人： LaVern A. Andrews ,  Dennis Moraitis

IPC分类号： G01S7/02 ,  G01S7/28 ,  G01S13/42 ,  G01S13/46 ,  G01S13/50 ,  G01S13/66 ,  G01S13/87 ,  G01S13/72

CPC分类号： G01S13/426 ,  G01S13/66 ,  G01S13/87

摘要： A single two dimension radar system having the capability of developing two dimensional data on all targets in its surveillance volume and three dimensional data for selected targets in its surveillance volume is disclosed. A single phased array antenna having two selectable elevation beam patterns, a wide beam and a narrow beam, is rotated in azimuth. In the two dimension mode, targets are detected and tracked in an azimuth and range position through use of the wide elevation beam. Upon selecting a particular target in track for three dimension data extraction, the radar system changes to the three dimension mode prior to the azimuth position of the selected target, and performs a sequential lobing process of the narrow beam in elevation angle. The power ratios of the target returns in the sequential lobes are analyzed and an elevation position of the selected target is determined. The radar system reverts to the two dimension mode after leaving the azimuth position of the selected target.

摘要翻译： 公开了一种具有在其监控体积中对所有目标进行二维数据开发的能力的单一二维雷达系统及其监视量中选定目标的三维数据。 具有两个可选择的仰角波束图案（宽光束和窄光束）的单相相控阵天线在方位角旋转。 在二维模式中，通过使用宽仰角波束，在方位角和范围位置检测和跟踪目标。 在选择三维数据提取的轨道中的特定目标时，雷达系统在所选目标的方位位置之前改变为三维模式，并且以仰角执行窄波束的顺序波动处理。 分析顺序波瓣中的目标返回的功率比，并且确定所选择的目标的仰角位置。 离开所选目标的方位位置后，雷达系统恢复到二维模式。