公开(公告)号：US09557413B2

公开(公告)日：2017-01-31

申请号：US13726920

申请日：2012-12-26

申请人： Robert Kozma ,  Lan Wang ,  Khan M. Iftekharuddin ,  Ross Deming ,  Orges Furxhi ,  Sergi Consul

发明人： Robert Kozma ,  Lan Wang ,  Khan M. Iftekharuddin ,  Ross Deming ,  Orges Furxhi ,  Sergi Consul

IPC分类号： G01S13/86 ,  G01S13/66 ,  G01S13/522 ,  G01S13/56

CPC分类号： G01S13/66 ,  G01S13/522 ,  G01S13/56 ,  G01S13/86

摘要： A system for detecting object movement including a sensory network having at least one sensory device using modulated radar for detecting an object in proximity to the sensory network. The sensory network including a wireless transmission system and a base station having a computer processing system located remote from the sensory network and including a wireless transmission system to communicate with the sensory network. The base station having a computer readable program code for causing the computer processing system to analyze data received from the sensory network to determine motion characteristics of the object in proximity to the sensory network.

摘要翻译： 一种用于检测物体移动的系统，包括具有至少一个感觉装置的感觉网络，所述感觉装置使用调制雷达来检测感觉网络附近的物体。 感知网络包括无线传输系统和具有远离感觉网络的计算机处理系统的基站，并且包括与感觉网络通信的无线传输系统。 所述基站具有计算机可读程序代码，用于使计算机处理系统分析从感觉网络接收到的数据，以确定物体在感觉网络附近的运动特性。

公开(公告)号：US08823578B2

公开(公告)日：2014-09-02

申请号：US13418436

申请日：2012-03-13

申请人： Toshihiro Hattori ,  Mitsuyasu Matsuura

发明人： Toshihiro Hattori ,  Mitsuyasu Matsuura

IPC分类号： G01S13/93 ,  G01S13/522 ,  G01S15/93 ,  G01S15/52 ,  G01S15/87 ,  G01S15/58 ,  G01S15/10 ,  B60W30/095 ,  G01S13/00 ,  G01S15/00

CPC分类号： G01S15/10 ,  B60W30/0956 ,  B60W2420/60 ,  B60W2550/306 ,  G01S15/582 ,  G01S15/87 ,  G01S15/931 ,  G01S2015/933 ,  G01S2015/938

摘要： A driving assist apparatus for a vehicle is disclosed. The driving assist apparatus includes a transmitter for transmitting a transmission wave, a receiver for receiving a reflected wave, an obstacle presence determination section for detecting a presence of an obstacle in the surrounding of the vehicle based on the reflected wave, a measurement section for measuring a frequency of phase delay and advance of the reflected wave with respect to a reference signal, and a detection section for detecting the obstacle having a specific relation with the vehicle based on the presence of the obstacle determined by the obstacle presence determination section and the frequency of delay and the frequency of advance measured by the measurement section.

摘要翻译： 公开了一种用于车辆的驾驶辅助装置。 驾驶辅助装置包括用于发送发送波的发送器，用于接收反射波的接收器，用于基于反射波检测车辆周围的障碍物的存在的障碍物存在确定部，测量部 相对于参考信号的相位延迟和反射波的频率的频率，以及用于基于由障碍物存在确定部分确定的障碍物的存在和用于检测与车辆具有特定关系的障碍物的检测部分 的延迟和由测量部分测量的提前频率。

公开(公告)号：US07064704B2

公开(公告)日：2006-06-20

申请号：US10835574

申请日：2004-04-30

申请人： Bengt Bergkvist

发明人： Bengt Bergkvist

IPC分类号： G01S13/20 ,  G01S13/522

CPC分类号： G01S13/22 ,  G01S7/2923 ,  G01S13/18 ,  G01S13/20

摘要： A radar transmits electromagnetic energy in pulse repetition intervals and receives reflections from objects in range gates including Doppler filters. The radar approves desirable ambiguous echoes and suppresses ambiguous echoes of no interest or that interfere with the radar's display. The radar frequency varies according to a staggered or wobbling pattern. The ambiguous echoes produce one pulse in the range gates within a predetermined number of periods. The Doppler filter works with an impulse function response that includes a small number of samples. The Doppler filter, during the predetermined number of periods, gives rise to independent samples from reflectors within the radar's unambiguous range. When the independent samples exceed the small number of samples, the radar approves the ambiguous echo. Otherwise, it is suppressed. In this way, ambiguous echoes are prevented from interfering with the reception or display of echoes. The suppression of asynchronous interferences can be made easier.

摘要翻译： 雷达以脉冲重复间隔传输电磁能，并接收包括多普勒滤波器在内的范围门中物体的反射。 雷达批准了所需的模糊回波，并且抑制了不感兴趣的或者干扰雷达显示的不明确的回波。 雷达频率根据交错或摆动模式而变化。 模糊回波在预定数量的周期内在范围门中产生一个脉冲。 多普勒滤波器具有包含少量样本的脉冲函数响应。 在预定数量的周期内，多普勒滤波器产生独立样本，不受雷达清晰范围内的反射器的影响。 当独立样本超过少量样本时，雷达批准模糊回波。 否则，它被抑制。 以这种方式，阻止歧义回波干扰回波的接收或显示。 抑制异步干扰可以更容易。

公开(公告)号：US20050168377A1

公开(公告)日：2005-08-04

申请号：US10837589

申请日：2004-05-04

申请人： Koichi Kai

发明人： Koichi Kai

IPC分类号： G01S13/522 ,  G01S7/40 ,  G01S13/28 ,  G01S13/34 ,  G01S13/58 ,  G01S13/87 ,  G01S13/93 ,  G01S17/93

CPC分类号： G01S7/4008 ,  G01S13/282 ,  G01S13/582 ,  G01S13/87 ,  G01S17/936

摘要： An on-vehicle radar system capable of detecting a range error from range data based on an echo from a target (6). Range error is detected when amplitudes of beat frequency components in two adjacent range gates are substantially equal. The system includes a transmitting unit (1, 2, 4, 5) for radiating a modulated wave having frequency increasing and decreasing repetitively after pulse modulation, a receiving unit (8, 9, 10, 11, 12) for receiving the echo, and an arithmetic unit (13) for detecting a range error ascribable to aberration of modulation band width due to frequency increase and decrease of transmission wave (W1) by comparing a range corresponding to the range gate with that determined from a frequency difference between transmission wave and echo. The arithmetic unit (13) detects the range error on the basis of frequency difference components having substantially same amplitudes in adjacent range gates.

摘要翻译： 一种车载雷达系统，其能够基于来自目标的回波（6）检测距范围数据的范围误差。 在两个相邻范围门中的拍频分量的幅度基本上相等时检测到范围误差。 该系统包括用于在脉冲调制之后重复地发射具有频率增加和减小的调制波的发射单元（1,2,4,5），用于接收回波的接收单元（8,9,10,11,12），以及 运算单元（13），用于通过将与范围门对应的范围与从发送波的频率差定义的范围进行比较，来检测由于发送波的频率增加和减小引起的调制带宽的像差的范围误差（W 1） 和回声。 算术单元（13）基于在相邻范围门中具有基本相同幅度的频差分量来检测范围误差。

公开(公告)号：US06844842B2

公开(公告)日：2005-01-18

申请号：US10344871

申请日：2001-08-02

申请人： Jens Kroeger ,  Ralph Mende ,  Karsten Schumann

发明人： Jens Kroeger ,  Ralph Mende ,  Karsten Schumann

IPC分类号： G01S13/22 ,  G01S13/522 ,  G01S13/93

CPC分类号： G01S13/522 ,  G01S13/22

摘要： A radar system is operated by controlling and thereby limiting the mean power of the transmitted signal in response to the mean power of the received signal thereby limiting the power to a predetermined power range. Preferably the power control or regulation is performed by varying the pulse repetition frequency and/or the pulse duration of the transmitter pulses. This method is well suited for operating a motor vehicle range warning system.

摘要翻译： 通过控制雷达系统并由此来限制发射信号的平均功率，以响应接收信号的平均功率，从而将功率限制在预定功率范围。 优选地，通过改变发射器脉冲的脉冲重复频率和/或脉冲持续时间来执行功率控制或调节。 该方法非常适用于运行汽车范围警告系统。

公开(公告)号：US5760734A

公开(公告)日：1998-06-02

申请号：US749609

申请日：1996-11-18

申请人： Harry Urkowitz

发明人： Harry Urkowitz

IPC分类号： G01S7/41 ,  G01S13/02 ,  G01S13/42 ,  G01S13/522

CPC分类号： G01S13/426 ,  G01S13/522 ,  G01S7/414 ,  G01S2013/0245 ,  G01S2013/0272

摘要： An apparatus and method for radar detection of spectral moments and other spectral characteristics of echoes includes an agile antenna which directs an antenna beam in a direction for a dwell interval. A clutter filter reduces clutter. In order to eliminate the need for fill pulses to stabilize the clutter filter, the clutter filtering is accomplished by matrix multiplication of the echo signal in each range bin by the inverse of the covariance matrix for that range. This reduces the dwell at each range interval, and provides a stream of pulse-to-pulse information at each range interval. The pulse-to-pulse data in each range interval is spectrum analyzed to extract the desired spectral information, which is displayed.

摘要翻译： 用于雷达检测回波的频谱力矩和其他频谱特性的装置和方法包括将天线波束朝向驻留间隔的方向引导的敏捷天线。 杂波滤波器减少杂波。 为了消除对填充脉冲的需要以稳定杂波滤波器，杂波滤波通过每个范围bin中的回波信号的矩阵乘法与该范围的协方差矩阵的倒数来实现。 这减少了每个范围间隔的驻留，并且在每个范围间隔提供脉冲 - 脉冲信息流。 频谱分析每个范围间隔中的脉冲 - 脉冲数据，以提取显示的所需光谱信息。

公开(公告)号：US5440311A

公开(公告)日：1995-08-08

申请号：US103027

申请日：1993-08-06

申请人： John J. Gallagher ,  Harry Urkowitz

发明人： John J. Gallagher ,  Harry Urkowitz

IPC分类号： G01S13/28 ,  G01S13/522 ,  G01S13/42

CPC分类号： G01S13/284 ,  G01S13/522

摘要： A radar transmits dispersed pulses in which the subpulses are modulated by first and second mutually complementary code sequences, the autocorrelation functions of which are selected so that, in the sum of their autocorrelation functions, the main range lobes add, and the range sidelobes cancel. The received pulses with their Doppler sidebands are applied to a plurality of channels, each of which (except one) contains a mixer-oscillator combination that removes a specific Doppler phase shift along the range dimension at a different channel frequency. One channel has no mixer-oscillator because it is centered at a zero channel frequency. Within each channel, the received signals modulated by the first and second codes are matched-filtered by filters matched to the first and second codes, respectively, to produce first and second time-compressed pulses, each including (a) a main lobe representing the target range, and (b) undesirable range sidelobes. The first and second time compressed pulses are added together in each channel, to produce range pulses with suppressed range sidelobes. The channel signals, after pulse compression, delay, and addition, are each applied to one channel of a pulse-to-pulse Doppler filter bank. The outputs from the pulse-to-pulse Doppler filter bank are applied for further radar signal processing.

摘要翻译： 雷达发射分散脉冲，其中子脉冲由第一和第二互补码序列调制，其自相关函数被选择，使得在它们的自相关函数的总和中，主范围波瓣加上，并且范围旁瓣取消。 具有多普勒边带的接收脉冲被施加到多个信道，其中每个信道（除了一个）包含混频器 - 振荡器组合，其在不同的信道频率处沿着范围维度去除特定的多普勒相移。 一个通道没有混频器振荡器，因为它以零通道频率为中心。 在每个通道内，由第一和第二代码调制的接收信号分别通过与第一和第二代码匹配的滤波器进行匹配滤波，以产生第一和第二时间压缩脉冲，每个包括（a）代表 目标范围和（b）不期望的范围旁瓣。 在每个通道中将第一和第二时间压缩脉冲相加在一起，以产生具有抑制范围旁瓣的范围脉冲。 脉冲压缩，延迟和相加后的通道信号各自被施加到脉冲到脉冲多普勒滤波器组的一个通道。 来自脉冲到脉冲多普勒滤波器组的输出被应用于进一步的雷达信号处理。

公开(公告)号：US5414428A

公开(公告)日：1995-05-09

申请号：US239051

申请日：1994-05-06

申请人： John J. Gallagher ,  Harry Urkowitz

发明人： John J. Gallagher ,  Harry Urkowitz

IPC分类号： G01S13/28 ,  G01S13/522

CPC分类号： G01S13/284 ,  G01S13/522

摘要： A radar system transmits dispersed pulses, and receives echoes from targets. The echo signals are digitized and applied over a number of signal paths. In each signal path except one, the digitized signal is multiplied by one of a plurality of differential exponential signals, for converting the echo signal of different exponential signals, for converting the echo signal in each path to baseband, with the baseband frequency representing a particular Doppler which depends upon the exponential signal. In the one remaining signal path, no multiplier is used, and the echo signal is deemed to be at baseband. The signals in each path are applied through a cascade of a pulse compressor and a range sidelobe suppressor. Since Doppler filtering has not yet taken place, full compression and range sidelobe reduction is not achieved, because of extraneous pulse-to-pulse phase shifts. The signals in each signal path are applied to a filter element of a pulse-to-pulse Doppler filter bank, which removes the extraneous phase shifts, and thereby provides full suppression of the range sidelobes.

摘要翻译： 雷达系统发射分散的脉冲，并从目标接收回波。 回波信号被数字化并施加在多个信号路径上。 在除了一个之外的每个信号路径中，数字化信号乘以多个微分指数信号中的一个，用于转换不同指数信号的回波信号，用于将每个路径中的回波信号转换为基带，基带频率表示特定的 取决于指数信号的多普勒。 在一条剩余的信号路径中，不使用乘法器，并且回声信号被认为处于基带状态。 每个路径中的信号通过脉冲压缩机和范围旁瓣抑制器的级联施加。 由于多普勒滤波还没有发生，由于外部脉冲相对于脉冲相移，不能实现全压缩和范围旁瓣减少。 每个信号路径中的信号被施加到脉冲到脉冲多普勒滤波器组的滤波器元件，其去除外部相移，从而提供范围旁瓣的完全抑制。

公开(公告)号：US4812849A

公开(公告)日：1989-03-14

申请号：US104061

申请日：1987-09-28

申请人： Vedon W. Otto

发明人： Vedon W. Otto

IPC分类号： G01R25/00 ,  G01S7/288 ,  G01S13/522 ,  G01S7/40 ,  G01R25/04

CPC分类号： G01S7/288 ,  G01R25/005 ,  G01S13/522

摘要： A phase comparator has additional circuitry for correcting nonquadrature error during operation of the comparator. The phase comparator has a 90 degree power divider which receives a reference signal input and produces two reference outputs, one shifted 90 degrees out of phase with the other. The phase comparator also has a zero degree power divider which receives a return signal, such as a reflected signal of a radar transmitter unit. The outputs of the power dividers are applied to mixers and filters to result in an I video output whose frequency is the difference between the reference and signal input frequencies, and a Q video output which is identical in frequency but shifted 90 degrees. The correction circuit includes a frequency trap connected to the reference input and tunable about a center frequency of approximately the third harmonic of the fundamental reference frequency. While the phase comparator is operating, the trap is detuned from the center frequency while the phase error is monitored until the phase error nears zero. Band pass filter means which electrically isolate the power divider from external circuitry can improve operation.

摘要翻译： 相位比较器具有用于在比较器操作期间校正非正交误差的附加电路。 相位比较器具有90度功率分配器，其接收参考信号输入并产生两个参考输出，一个与另一个偏移90度异相。 相位比较器还具有零度功率分配器，其接收诸如雷达发射器单元的反射信号的返回信号。 功率分配器的输出被施加到混频器和滤波器以产生频率为参考和信号输入频率之间的差异的I视频输出以及频率相同但偏移90度的Q视频输出。 校正电路包括连接到参考输入的频率陷波器，并且可以围绕基本参考频率的大约三次谐波的中心频率进行调节。 当相位比较器工作时，陷阱与中心频率失谐，同时监视相位误差，直到相位误差接近零。 将功率分配器与外部电路电隔离的带通滤波器装置可以改善操作。

公开(公告)号：US4658255A

公开(公告)日：1987-04-14

申请号：US633030

申请日：1984-07-23

申请人： Hiroshi Nakamura ,  Eiichi Kiuchi ,  Toshihiko Hagisawa

发明人： Hiroshi Nakamura ,  Eiichi Kiuchi ,  Toshihiko Hagisawa

IPC分类号： G01S13/52 ,  G01S7/292 ,  G01S13/522 ,  G01S13/524 ,  H03H17/00 ,  H03H17/02 ,  H03H21/00

CPC分类号： G01S7/2923 ,  G01S13/5244

摘要： An adaptive radar signal processing apparatus for a radar system wherein filter coefficients are switched for individual regions so that optimum filter characteristics can be obtained for the individual stationary clutter region, moving clutter region, clear region, etc. thereby providing suppression of undesired signals which is adapted for each region.

摘要翻译： 一种用于雷达系统的自适应雷达信号处理装置，其中针对各个区域切换滤波器系数，使得可以为各个固定杂波区域，移动杂波区域，清除区域等获得最佳滤波特性，从而提供对不需要的信号的抑制， 适应每个地区。