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公开(公告)号：US20230194695A1
公开(公告)日：2023-06-22
申请号：US17996415
申请日：2021-04-20
申请人： ROMBIT NV
发明人： Nico JANSSENS , Brett DAMAN
摘要： The invention relates to a method, system and computer program product for determining a position of a person with respect to a blind spot of a vehicle. In a first aspect, the invention relates to a method for determining a position of a person with respect to a blind spot of a vehicle. In a second and third aspect, the invention relates to a system and a computer program product, respectively, for determining a position of a person with respect to a blind spot of a vehicle. Embodiments of the present invention are discussed throughout the claims, description and figures.
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2.发明授权Locating device for locating a source emitting a short-duration high power microwave pulse 有权用于定位发射短时大功率微波脉冲的源的定位装置公开(公告)号：US09423483B2
公开(公告)日：2016-08-23
申请号：US14095171
申请日：2013-12-03
发明人： Frank Sonnenmann , Adam Umerski
摘要： A locating device locates a source emitting a short-duration high power microwave pulse. The locating device contains at least three separately disposed receiving antennas that are not disposed on a line, each with an associated detection device for detecting the point in time of the reception at the antenna of the high power microwave pulse. At least one short time measurement device is provided for determining at least two time differences between the points in time of reception of each two of the detection devices. A computing device is provided for calculating a location of the origin of the high power microwave pulse based on at least two of the measured time differences.
摘要翻译： 定位装置定位发射短时大功率微波脉冲的源。 定位装置包括至少三个分开布置的接收天线，其不设置在一条线上，每个接收天线具有用于检测在大功率微波脉冲的天线处的接收时间点的相关联的检测装置。 提供至少一个短时间测量装置用于确定每两个检测装置的接收时间点之间的至少两个时间差。 提供了一种计算装置，用于基于所测量的时间差中的至少两个来计算高功率微波脉冲的原点的位置。
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3.发明申请Angle of arrival and/or range estimation within a wireless communication device 有权无线通信设备内的到达角度和/或范围估计公开(公告)号：US20100302102A1
公开(公告)日：2010-12-02
申请号：US12787256
申请日：2010-05-25
申请人： Prasanna Desai , Brima B. Ibrahim , Siukai Mak
发明人： Prasanna Desai , Brima B. Ibrahim , Siukai Mak
IPC分类号： G01S5/02
CPC分类号： G01S3/14 , G01S3/50 , G01S5/12 , G01S11/06 , H04W64/006
摘要： Angle of arrival and/or range estimation within a wireless communication device. Appropriate processing of communications received by a wireless communication device is performed to determine the angle of arrival of the communication (e.g., with respect to some coordinate basis of the wireless communication device). Also, appropriate processing of the communications may be performed in accordance with range estimation as performed by the wireless communication device to determine the distance between the transmitting and receiving wireless communication devices. There are two separate modes of packet processing operations that may be performed: (1) when contents of the received packet are known, and (2) when contents of the received packet are unknown. The wireless communication device includes a number of antenna, and a switching mechanism switches from among the various antennae capitalizing on the spatial diversity of the antennae to generate a multi-antenna signal.
摘要翻译： 无线通信设备内的到达角度和/或范围估计。 执行由无线通信设备接收的通信的适当处理以确定通信的到达角度（例如，关于无线通信设备的某些坐标基础）。 此外，可以根据由无线通信设备执行的范围估计来执行通信的适当处理，以确定发送和接收无线通信设备之间的距离。 可以执行两种分组处理操作的模式：（1）当接收到的分组的内容是已知的，以及（2）当接收的分组的内容是未知的时。 无线通信装置包括多个天线，并且切换机构从各种天线之间切换，利用天线的空间分集来生成多天线信号。
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4.发明授权Impulse radio receiver and method for finding angular offset of an impulse radio transmitter 有权脉冲无线电接收机和用于寻找脉冲无线电发射机的角度偏移的方法公开(公告)号：US06760387B2
公开(公告)日：2004-07-06
申请号：US09957745
申请日：2001-09-21
IPC分类号： H04B702
CPC分类号： G01S3/50
摘要： A system and method for determining angular offset of an impulse radio transmitter using an impulse radio receiver coupled to two antennae. The antennae are separated by some known distance, and, in one embodiment, one antennae is coupled to the radio with cable delay. Impulse signals from the antennae are measured to determine the time difference of arrival of one such signal received by one antenna compared to that of the other antenna. Time differential is measured by autocorrelation of the entire impulse radio scan period, by detecting the leading edges of both incoming signals or various combinations of these methods. Using a tracking receiver, the pulses may be continuously tracked thus providing real time position information.
摘要翻译： 一种用于使用耦合到两个天线的脉冲无线电接收机来确定脉冲无线电发射机的角度偏移的系统和方法。 天线被隔开某一已知距离，并且在一个实施例中，一个天线通过电缆延迟耦合到无线电设备。 测量来自天线的脉冲信号，以确定与另一个天线相比，由一个天线接收的一个这样的信号的到达时间差。 通过检测两个输入信号的前沿或这些方法的各种组合，通过整个脉冲无线电扫描周期的自相关来测量时间差。 使用跟踪接收器，可以连续跟踪脉冲，从而提供实时位置信息。
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5.发明授权System and method for determining a direction of incident electromagnetic signals 有权用于确定入射电磁信号方向的系统和方法公开(公告)号：US06700536B1
公开(公告)日：2004-03-02
申请号：US10277956
申请日：2002-10-23
申请人： Richard J. Wiegand
发明人： Richard J. Wiegand
IPC分类号： G01S502
摘要： A system and method are provided that includes at least a pair of spaced antennas having overlapping fields of view. The system further includes at least a pair of receivers respectively coupled to the pair of antennas. Each of the receivers includes a spectral separator having a plurality of output signals. Each of the output signals represents a signal value at one of a plurality of predetermined frequencies. A plurality of analog to digital converters are coupled to a corresponding one of the spectral separators for respectively providing a digital representation of each of the output signals. A digital processor coupled to an output of each of the plurality of analog to digital converters calculates an angle of arrival of the transmitted signal in at least one dimension from the digital representations.
摘要翻译： 提供一种系统和方法，其包括具有重叠视场的至少一对隔开的天线。 该系统还包括分别耦合到该对天线的至少一对接收机。 每个接收机包括具有多个输出信号的频谱分离器。 每个输出信号表示多个预定频率之一处的信号值。 多个模数转换器耦合到对应的一个频谱分离器，用于分别提供每个输出信号的数字表示。 耦合到多个模数转换器中的每一个的输出的数字处理器在数字表示中至少一个维度中计算发射信号的到达角度。
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6.发明申请Impulse radio receiver and method for finding angular offset of an impulse radio transmitter 有权脉冲无线电接收机和用于寻找脉冲无线电发射机的角度偏移的方法公开(公告)号：US20030058971A1
公开(公告)日：2003-03-27
申请号：US09957745
申请日：2001-09-21
IPC分类号： H03D001/00
CPC分类号： G01S3/50
摘要： A system and method for determining angular offset of an impulse radio transmitter using an impulse radio receiver coupled to two antennae. The antennae are separated by some known distance, and, in one embodiment, one antennae is coupled to the radio with cable delay. Impulse signals from the antennae are measured to determine the time difference of arrival of one such signal received by one antenna compared to that of the other antenna. Time differential is measured by autocorrelation of the entire impulse radio scan period, by detecting the leading edges of both incoming signals or various combinations of these methods. Using a tracking receiver, the pulses may be continuously tracked thus providing real time position information.
摘要翻译： 一种用于使用耦合到两个天线的脉冲无线电接收机来确定脉冲无线电发射机的角度偏移的系统和方法。 天线被隔开某一已知距离，并且在一个实施例中，一个天线通过电缆延迟耦合到无线电设备。 测量来自天线的脉冲信号，以确定与另一个天线相比，由一个天线接收的一个这样的信号的到达时间差。 通过检测两个输入信号的前沿或这些方法的各种组合，通过整个脉冲无线电扫描周期的自相关来测量时间差。 使用跟踪接收器，可以连续跟踪脉冲，从而提供实时位置信息。
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7.发明授权Means for extracting phase information for radio frequency direction of arrival 失效用于提取射频到达方向的相位信息的装置
公开(公告)号：US6011514A
公开(公告)日：2000-01-04
申请号：US178536
申请日：1998-10-26
摘要： The extraction of phase information for radio frequency (RF) direction of rival is attained by pre-detect sensing and quantization of differential phase of a RF wave impinging on two or more antenna apertures, based on sensing and encoding differential phase without the use of conventional detection, and quantizing phase at or near the leading edge of a pulse signal. This is accomplished by detection of an intermediate frequency (IF) carrier, and encoding leading-edge phase (for each channel) in terms of near-phase-difference between two reference-oscillator readings containing the differential phase information--encoded as differential reference-oscillator phase. Precision angle-of-arrival is then derived from the measured differential reference-oscillator phase.
摘要翻译： 射频（RF）到达方向的相位信息的提取是通过基于感测和编码差分相位的两个或多个天线孔径的RF波的差分相位的预检测感测和量化来实现的，而不使用传统的 检测和量化在脉冲信号的前沿附近的阶段。 这是通过检测中频（IF）载波和编码前沿相位（用于每个通道）的方式来实现的，其中包含差分相位信息被编码为差分参考振荡器的两个参考振荡器读数之间的近似相位差， 振荡器相位。 然后从测量的差分参考振荡器相位导出精确的到达角度。
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公开(公告)号：US4888593A
公开(公告)日：1989-12-19
申请号：US147255
申请日：1987-12-15
IPC分类号： G01S3/50
CPC分类号： G01S3/50
摘要： A direction finding method and apparatus for a radio signal source, modulated by a digital information signal and existing in a heavy interference environment, is based on cyclic crosscorrelation. The direction finding technique exploits the second order periodicity of a transmitted signal having digital modulation, whereby the technique is immune to narrow-band interference. Radio frequency signals are received by two spaced antennas, and the signal of interest can be considered as a cyclostationary process. The signal time of arrival difference between the two antennas is determined using a cyclic crosscorrelation method. This is implemented by sending the electrical signals, developed by the antennas, through a variable delay device, then to a balanced mixer. The composite signal from the mixer is sent to a band-pass filter whose center frequency is equal to the baud rate of the signal of interest. The output energy of the filter is proportional to that portion of the cyclic crosscorrelation function where the cyclic frequency corresponds to the baud rate. With the use of a peak detector, which finds the peak values of the cyclic crosscorrelation function, the time difference of arrival between the two antennas is determined. This, in turn, determines a line of position to the radio source.
摘要翻译： 用于由数字信息信号调制并且存在于严重干扰环境中的无线电信号源的测向方法和装置基于循环互相关。 方向发现技术利用具有数字调制的发送信号的二阶周期性，由此该技术不受窄带干扰的影响。 射频信号由两个间隔的天线接收，感兴趣的信号可以被认为是循环平稳过程。 使用循环互相关方法确定两个天线之间的信号到达时间差。 这是通过发送由天线开发的电信号通过可变延迟装置，然后发送到平衡混频器来实现的。 来自混频器的复合信号被发送到中心频率等于感兴趣信号的波特率的带通滤波器。 滤波器的输出能量与循环频率对应于波特率的循环互相关函数的那部分成正比。 利用寻找循环互相关函数的峰值的峰值检测器，确定两个天线之间的到达时间差。 这反过来又决定了无线电源的位置。
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公开(公告)号：US4797679A
公开(公告)日：1989-01-10
申请号：US59730
申请日：1987-06-09
摘要： A method and a system for radio direction-finding by measuring the Time of Arrival (ToA) of the leading edge of signals from a distant source at two relatively closely spaced receiving elements. In order to give a good degree of immunity to multipath, the times at which the instantaneous detected amplitudes of the received signals first exceed a minimal threshold value such that received signals can be satisfactorily distinguished from noise is measured in such a manner that the measured time is not affected by multipath which involves more than a few meters additional path length for the indirect, delayed signal. A suitable timing circuit is disclosed.By making ToA measurements on three coplanar, non-collinear receivers, directions of incidence in three dimensions can be determined.A method and a system using both ToA and phase-difference measurements can provide the accuracy of interferometry but be simpler and cheaper.
摘要翻译： 一种用于无线电测向的方法和系统，通过测量两个相对接近间隔的接收元件的来自远距离源的信号的前沿的到达时间（ToA）。 为了给予多路径的良好程度的抗扰度，接收信号的瞬时检测到的幅度首先超过最小阈值的时间使得接收到的信号可以令人满意地与噪声区分开来测量时间， 不受多路径影响，间接延迟信号涉及多于几米的额外路径长度。 公开了一种合适的定时电路。 通过对三个共面非共线接收器进行ToA测量，可以确定三维的入射方向。 使用ToA和相位差测量的方法和系统可以提供干涉测量的精度，但是更简单和更便宜。
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公开(公告)号：US4316193A
公开(公告)日：1982-02-16
申请号：US80533
申请日：1979-10-01
摘要： A servo loop processor suitable for use in a passive radar range determining system is disclosed. Early and late overlapping video pulse trains derived from spaced receiving antennas are fed to separate first and second channels and are sampled and held from pulse period to pulse period to form signals representing the amplitude envelopes of the received pulse trains. The output of the first channel is variably delayed and the delayed signal is compared with the undelayed output of the second channel to create an error signal. The output of the second channel is also differentiated, and the result is sampled and held to create a reference signal that has the proper phase relationship with the error signal so that the error signal can be multiplied by the reference signal to create a correction signal. The resulting correction signal is integrated and fed back to control the time delay applied to the output of the first channel such that a closed servo loop is formed. At balance, the integrated correction signal is related to the distance between the radar antenna transmitting the pulse trains, and the receiving antennas. In an alternative embodiment, envelope signals representing the first and second channel pulse trains are converted from analog to digital form, and the digitized second channel output is subtracted from the same digitized signal delayed by a fixed interval to form a digital version of the above-mentioned reference signal. A digital version of the error signal, derived as above, is then multiplied by the digital reference signal to create a digital correction signal, which after integration, controls the time delay of the first channel output signal.
摘要翻译： 公开了一种适用于被动雷达测距系统的伺服环路处理器。 从间隔的接收天线得到的早期和晚期的重叠视频脉冲串被馈送到分离的第一和第二信道，并且从脉冲周期到脉冲周期被采样和保持，以形成表示所接收的脉冲序列的幅度包络的信号。 第一通道的输出可变地延迟，并且将延迟信号与第二通道的未延迟输出进行比较以产生误差信号。 第二通道的输出也是不同的，结果被采样和保持以产生与误差信号具有适当的相位关系的参考信号，使得误差信号可以乘以参考信号以产生校正信号。 所得到的校正信号被积分并反馈以控制施加到第一通道的输出的时间延迟，从而形成闭合的伺服环路。 在平衡中，积分校正信号与发射脉冲串的雷达天线与接收天线之间的距离有关。 在替代实施例中，表示第一和第二通道脉冲序列的包络信号从模拟形式转换成数字形式，并且从延迟了固定间隔的相同数字化信号中减去数字化的第二通道输出以形成上述的数字版本， 上述参考信号。 然后将如上导出的误差信号的数字版本乘以数字参考信号，以产生数字校正信号，其在积分后控制第一通道输出信号的时间延迟。
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