公开(公告)号：US07508337B2

公开(公告)日：2009-03-24

申请号：US11979222

申请日：2007-10-31

申请人： Mitsutoshi Morinaga ,  Keiichiro Nagatsuka

发明人： Mitsutoshi Morinaga ,  Keiichiro Nagatsuka

IPC分类号： G01S13/42

CPC分类号： G01S13/584 ,  G01S7/352 ,  G01S13/34 ,  G01S2007/356

摘要： The radar apparatus of the present invention can obtain distance to a target and speed with higher accuracy even when multiple targets are running within a detecting field of a radar. The radar apparatus can transmit a radio wave by alternately switching a section having a frequency slope and a section having no frequency slope with the radar for simultaneously transmitting a couple of frequencies having a frequency difference. Measurement of distance to the target and relative speed is conducted in the above two sections, results of measurement are compared with each other in the adjacent sections, and the result of measurement is determined correct only when there is no inconsistency in these measurement results.

摘要翻译： 本发明的雷达装置即使在雷达的检测区域内运行多个目标时，也能够以更高的精度获得与目标的距离和速度。 雷达装置可以通过交替地切换具有频率斜率的部分和与雷达不具有频率斜率的部分来同时发送具有频率差的一对频率来发射无线电波。 在上述两部分中进行与目标的距离的测量和相对速度的测量，在相邻部分中将测量结果彼此进行比较，并且仅当这些测量结果不一致时才将测量结果确定为正确的结果。

公开(公告)号：US20090058714A1

公开(公告)日：2009-03-05

申请号：US12061478

申请日：2008-04-02

申请人： David C. Vacanti

发明人： David C. Vacanti

IPC分类号： G01S13/08

CPC分类号： G01S7/352 ,  G01S13/34 ,  G01S13/882 ,  G01S2007/356

摘要： Methods and apparatus for determining an altitude with an altimeter is provided. One method includes transmitting a signal having a fixed modulation period towards a ground target and then detecting reflected signals off the ground target. The method then implements a single Fast Fourier Transform (FFT) on the detected signals for each modulation period that computes all possible altitudes in real time. A short history of the real time altitude calculations is collected and then the altitude based on the short history of the real time altitude calculations is determined.

摘要翻译： 提供了用高度计确定高度的方法和装置。 一种方法包括向地面目标发射具有固定调制周期的信号，然后检测离地面目标的反射信号。 该方法然后对于实时计算所有可能的高度的每个调制周期对检测到的信号执行单个快速傅里叶变换（FFT）。 收集实时高度计算的短历史，然后确定基于实时高度计算的短历史的高度。

公开(公告)号：US07495604B2

公开(公告)日：2009-02-24

申请号：US11676741

申请日：2007-02-20

申请人： Chiharu Yamano ,  Kazuma Natsume ,  Yuu Watanabe ,  Mai Sakamoto

发明人： Chiharu Yamano ,  Kazuma Natsume ,  Yuu Watanabe ,  Mai Sakamoto

IPC分类号： G01S13/58

CPC分类号： G01S7/4021 ,  G01S7/023 ,  G01S7/352 ,  G01S13/931 ,  G01S2007/356

摘要： A sampled beat signal is cut out into two or more short time data in a time direction concerning each antenna component. From a frequency spectrum of the short time data, an interference element frequency of an interference wave is detected. From the interference element frequency of the interference wave, two or more candidates of the frequency before aliasing of the interference wave are produced, and phase correction is executed on each candidate. Digital Beamforming is executed on the corrected frequency so as to extract maximum peaks of the power of an azimuth direction, and the frequency candidate showing the maximum peak power is selected and the arrival azimuth of the interference element is estimated. A filter for suppressing the interference element is applied on the short time data from the estimated arrival azimuth of the interference element so as to suppress the interference element.

摘要翻译： 在每个天线部件的时间方向上将采样的拍频信号切成两个以上的短时间数据。 根据短时间数据的频谱，检测干扰波的干扰要素频率。 根据干扰波的干扰要素频率，产生干扰波混叠前的频率的两个以上候选，对每个候选进行相位校正。 在校正后的频率上执行数字波束成形，以提取方位方向的功率的最大峰值，并且选择表示最大峰值功率的频率候选，并且估计干扰要素的到达方位角。 用于抑制干扰要素的滤波器从干扰要素的预计到达方位施加在短时间数据上，以便抑制干扰要素。

公开(公告)号：US07474262B2

公开(公告)日：2009-01-06

申请号：US11172684

申请日：2005-07-01

申请人： Stephen W. Alland

发明人： Stephen W. Alland

IPC分类号： H01Q3/38

CPC分类号： G01S13/52 ,  G01S7/288 ,  G01S7/352 ,  G01S13/931 ,  G01S2007/356 ,  G01S2007/358 ,  G01S2013/0245 ,  G01S2013/9314 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  H01Q21/0006 ,  H04B7/01

摘要： Digital beamforming is provided for use with electronically scanned radar. In an aspect, the present invention provides enhanced sensitivity, wide angle or field of view (FOV) coverage with narrow beams, minimized number of receivers, reduced sidelobes, eliminated grating lobes and beam compensation for target motion. In an aspect, the present invention employs a uniform overlapped subarray feed network, a time multiplexed switch matrix, and a restructured digital signal processor. Antenna channels share a receiver, rather than maintain a dedicated receiver for each antenna element, as in conventional systems. In an aspect, Doppler/frequency filtering is performed on each antenna element or subarray output prior to digital beamforming. Further, Doppler compensation is employed following Doppler/frequency filtering, followed by digital beamforming.

摘要翻译： 提供数字波束成形用于电子扫描雷达。 一方面，本发明提供了增强的灵敏度，具有窄光束的广角或视场（FOV）覆盖，最小数量的接收器，减少的旁瓣，消除的光栅和针对目标运动的光束补偿。 在一方面，本发明采用均匀的重叠子阵列馈电网络，时间复用开关矩阵和重构的数字信号处理器。 天线信道共享接收机，而不是如常规系统那样维护每个天线元件的专用接收机。 在一个方面，在数字波束形成之前对每个天线元件或子阵列输出执行多普勒/频率滤波。 此外，在多普勒/频率滤波之后采用多普勒补偿，随后进行数字波束成形。

公开(公告)号：US07427930B2

公开(公告)日：2008-09-23

申请号：US10744686

申请日：2003-12-23

申请人： David V. Arnold ,  Logan Harris ,  Michael Jensen ,  Thomas William Karlinsey ,  Ryan Smith ,  Jonathan L. Waite ,  John B. Dougall, Jr.

发明人： David V. Arnold ,  Logan Harris ,  Michael Jensen ,  Thomas William Karlinsey ,  Ryan Smith ,  Jonathan L. Waite ,  John B. Dougall, Jr.

IPC分类号： G08G1/01 ,  G01S3/02

CPC分类号： H01Q21/0006 ,  G01S7/032 ,  G01S7/352 ,  G01S13/04 ,  G01S13/34 ,  G08G1/042 ,  H01Q13/106 ,  H01Q21/08

摘要： A vehicle traffic sensor for detecting and monitoring vehicular targets is presented. The sensor employs a planar design resulting in a reduced profile sensor. The sensor includes a multi-layer radio frequency board with RF components on one of the sides and both isolation and planar array antennas on the opposing side. The antennas are preferably tapered planar array antennas which include one transmit antenna and one receive antenna. The sensor also includes at least one logic or signal processing board populated with components on a first side and a ground plane on a second side positioned toward the RF componentry of the RF board to form an RF shield. The boards are housed within a housing that is permeable, at least on the side through which the antenna structures propagate.

摘要翻译： 提出了一种用于检测和监控车辆目标的车辆交通传感器。 该传感器采用平面设计，从而减少轮廓传感器。 该传感器包括在其一侧具有RF部件的多层射频板以及相对侧的隔离和平面阵列天线。 天线优选是包括一个发射天线和一个接收天线的锥形平面阵列天线。 该传感器还包括至少一个逻辑或信号处理板，其填充有第一侧上的部件和位于RF板的RF部件的第二侧上的接地平面，以形成RF屏蔽。 板被容纳在可透气的壳体内，至少在天线结构传播的一侧。

公开(公告)号：US20080114510A1

公开(公告)日：2008-05-15

申请号：US11662981

申请日：2005-07-20

申请人： Ulf Wilhelm ,  Martin Randler ,  Ruediger Jordan

发明人： Ulf Wilhelm ,  Martin Randler ,  Ruediger Jordan

IPC分类号： G01S13/93 ,  B60R22/195 ,  B60R21/01

CPC分类号： B60W10/20 ,  B60R21/0134 ,  B60W10/18 ,  G01S7/352 ,  G01S13/343 ,  G01S13/931 ,  G01S2007/356 ,  G01S2007/358 ,  G01S2013/9325 ,  G01S2013/9367

摘要： A method and a device for transmitting and receiving electromagnetic radiation are provided to detect, within a future time period, a pending collision with a preceding object. The transmitted radiation is FMCW-modulated, the slope of the frequency ramp is determined as a function of the transmit frequency and as a function of the future time period, and a pending collision within the future time period is ascertained when a negative receive frequency is detected.

摘要翻译： 提供一种用于发送和接收电磁辐射的方法和装置，用于在未来的时间段内检测与前一对象的未决冲突。 发射的辐射是FMCW调制的，频率斜坡的斜率根据发射频率和未来时间周期的函数确定，并且当负接收频率为 检测到。

公开(公告)号：US07372396B2

公开(公告)日：2008-05-13

申请号：US11595549

申请日：2006-11-10

申请人： Masayoshi Shono

发明人： Masayoshi Shono

IPC分类号： G01S7/35 ,  G01S13/58

CPC分类号： G01S7/034 ,  G01S7/352 ,  G01S7/354 ,  G01S13/345 ,  G01S13/584 ,  G01S13/931 ,  G01S2007/356

摘要： A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the input side of the mixer; and a switch controller for controlling the switch on and off in different modes and selecting the IF signal in the different modes for supply to said mixer. A transmit-receive FM-CW radar apparatus according to another mode of the invention comprises: a mixer for downconverting an IF signal; a switch for turning on and off a local signal to be supplied to the mixer; and a switch controller for controlling the switch on and off in different modes and selecting the local signal in the different modes for supply to the mixer.

公开(公告)号：US20080106460A1

公开(公告)日：2008-05-08

申请号：US11809707

申请日：2007-06-01

申请人： James Lynn Kurtz ,  Philip Russell Carlson ,  Charles Henry Overman

发明人： James Lynn Kurtz ,  Philip Russell Carlson ,  Charles Henry Overman

IPC分类号： G01S13/00

CPC分类号： G01S7/352 ,  G01S13/34 ,  G01S13/584 ,  G01S2007/356

摘要： The subject invention pertains to a frequency modulation continuous wave (FMCW) radar system. Embodiments relate to methods of improving the performance of such a FMCW system and improving the value of the information provided by such a FMCW system. In an embodiment of the subject invention, the IF level can be monitored while sweeping the frequency of the system through at least a portion of the frequency range of the system. In a specific embodiment, the system is then set to the frequency that produces the minimum IF level, which is the frequency that produces the minimum AM signal level. Embodiments of the invention pertain to techniques for expediting the adaptation of the comb filter to the signal when the system is turned on. In an embodiment, in order to reduce the number of detection calculations a processor performs every frame, a method of quickly determining the largest peaks in the RDM is implemented. Embodiments of the subject invention relate to a method for processing a radar signal that classifies two or more targets. A specific embodiment of a method for processing the radar signal classifies a human target or other target(s) using amplitude values in time-consecutive range-Doppler maps. Embodiments of the invention pertain to a method for processing a radar signal for improving the performance of FMCW detection, tracking, and classification algorithms. Embodiments improve such performance by increasing the SNR and velocity measurement resolution of slow moving targets while minimizing DSP computational and memory requirements in two-dimensional FFT range-velocity processing.

摘要翻译： 本发明涉及一种频率调制连续波（FMCW）雷达系统。 实施例涉及提高这种FMCW系统的性能并提高由这样的FMCW系统提供的信息的价值的方法。 在本发明的一个实施例中，可以通过系统的频率范围的至少一部分扫描系统的频率来监视中频电平。 在具体实施例中，然后将系统设置为产生最小IF电平的频率，其是产生最小AM信号电平的频率。 本发明的实施例涉及当系统打开时加速梳状滤波器对信号的适配的技术。 在一个实施例中，为了减少处理器执行每帧的检测计算次数，实现了快速确定RDM中的最大峰值的方法。 本发明的实施例涉及一种用于处理对两个或更多个目标进行分类的雷达信号的方法。 用于处理雷达信号的方法的具体实施例使用时间连续范围多普勒图中的振幅值对人类目标或其他目标进行分类。 本发明的实施例涉及一种用于处理雷达信号以提高FMCW检测，跟踪和分类算法的性能的方法。 实施例通过增加慢速移动目标的SNR和速度测量分辨率，同时最小化二维FFT范围 - 速度处理中的DSP计算和存储器需求来改善这种性能。

公开(公告)号：US20080094274A1

公开(公告)日：2008-04-24

申请号：US11934254

申请日：2007-11-02

申请人： Motoi Nakanishi

发明人： Motoi Nakanishi

IPC分类号： G01S13/02

CPC分类号： G01S7/36 ,  G01S7/352 ,  G01S7/354 ,  G01S13/345 ,  G01S13/931 ,  G01S2007/356

摘要： A radar for detecting a target wherein a standard deviation of the amplitude of a beat signal from a transmission signal and a reception signal is determined for a predetermined period. A threshold is determined by adding a predetermined value to the standard deviation or by multiplying the standard deviation by a predetermined coefficient. The presence or absence of interference on the beat signal is detected according to the presence or the absence of an amplitude greater than the threshold. For example, an amplitude exceeding the standard deviation×2 is considered a spike noise (SPN), i.e., as “presence of interference”. The threshold used for detecting peaks appearing on a frequency spectrum is then increased. This allows detection of the presence or the absence of a spike noise superposed on the beat signal to be performed more certainly, thereby enabling processing according to the presence or the absence of interference.

公开(公告)号：US07302017B2

公开(公告)日：2007-11-27

申请号：US10173756

申请日：2002-06-18

申请人： Kenneth Solomon Wreschner ,  Eric Jay Clelland ,  Christopher Bingham Johnson ,  Keith Petticrew ,  Robert Lee Trapp

发明人： Kenneth Solomon Wreschner ,  Eric Jay Clelland ,  Christopher Bingham Johnson ,  Keith Petticrew ,  Robert Lee Trapp

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： G01S7/292 ,  G01S7/352 ,  G01S7/354

摘要： A robust and flexible system for signal parameter measurements in the field of signal processing dynamically uses signal parameters from previous signal detections and parametric priorities to adaptively control and process the signal in an efficient and reliable manner. The system provides for improved fine grain signal parameter measurements through the use of adaptive arbitration to control signal processing. The system improves measurement accuracy for various signal characteristics including pulse width, amplitude, frequency and timing information. The system also provides signal parameter measurements while requiring less power, size, and weight than conventional systems.

摘要翻译： 用于信号处理领域的信号参数测量的鲁棒灵活的系统动态地使用先前信号检测和参数优先级的信号参数，以有效和可靠的方式适应性地控制和处理信号。 该系统通过使用自适应仲裁来控制信号处理来提供改进的细粒度信号参数测量。 该系统提高各种信号特性的测量精度，包括脉冲宽度，幅度，频率和定时信息。 该系统还提供信号参数测量，同时需要比传统系统更少的功率，尺寸和重量。