公开(公告)号：US07425917B2

公开(公告)日：2008-09-16

申请号：US11649785

申请日：2007-01-05

申请人： Motoi Nakanishi ,  Toru Ishii

发明人： Motoi Nakanishi ,  Toru Ishii

IPC分类号： G01S13/60 ,  G01S13/34 ,  G01S13/50 ,  G01S13/93

CPC分类号： G01S13/588 ,  G01S13/345 ,  G01S13/584

摘要： A radar including a target measurement component, a differential velocity calculator and an overall velocity determination portion. The target measurement component transmits and receives an electromagnetic wave over a detection range repeatedly at measurement intervals to measure a position of a target in the detection range and measure a Doppler velocity of the target based on a Doppler shift of the electromagnetic wave reflected from the target. The differential velocity calculator determines a differential velocity of the target based on a change in position of the target during consecutive measurement intervals. The overall velocity determination portion determines a current overall velocity by calculating a weighted average of the Doppler velocity, the differential velocity, and a previously determined overall velocity.

摘要翻译： 包括目标测量部件，差速计算器和总体速度确定部分的雷达。 目标测量部件以测量间隔重复地在检测范围上发送和接收电磁波，以测量目标在检测范围内的位置，并且基于从目标反射的电磁波的多普勒频移来测量目标的多普勒速度 。 差分速度计算器基于目标在连续的测量间隔期间的位置变化来确定目标的差速。 总速度确定部分通过计算多普勒速度，差速和预先确定的总速度的加权平均来确定当前总体速度。

公开(公告)号：US06856278B2

公开(公告)日：2005-02-15

申请号：US10334898

申请日：2003-01-02

申请人： Motoi Nakanishi ,  Toru Ishii ,  Tetsu Nishimura

发明人： Motoi Nakanishi ,  Toru Ishii ,  Tetsu Nishimura

IPC分类号： B60R21/00 ,  G01S7/292 ,  G01S13/34 ,  G01S13/42 ,  G01S13/58 ,  G01S13/93 ,  G08G1/16 ,  G01S13/32

CPC分类号： G01S13/426 ,  G01S13/345 ,  G01S13/584 ,  G01S13/931

摘要： A radar performs accurate and appropriate pairing even if peaks of approximately identical signal intensities or even if a plurality of peak groups having identical representative beam bearings exist in the frequency spectrum. First, the peak frequency of a peak which appears in the frequency spectrum is determined for each of an up-modulating interval and a down-modulating interval in predetermined beam bearings, and signal-intensity profiles in the beam bearings are extracted with regard to a plurality of beam portions which are adjacent to the beam bearings. Next, the correlation level between the signal-intensity profiles at the up-modulating interval and the down-modulating interval is determined, and pairing is performed in sequence starting from the profiles having a higher correlation level.

摘要翻译： 即使在频谱中存在大致相同信号强度的峰值，或者即使在频谱中存在具有相同的代表性波束轴承的多个峰组，雷达也执行准确和适当的配对。 首先，对于预定的波束轴承中的上调制间隔和下调制间隔中的每一个，确定出现在频谱中的峰值的峰值频率，并且关于a轴提取梁轴承中的信号强度分布 与梁轴承相邻的多个梁部分。 接下来，确定在上调制间隔和下调制间隔处的信号强度分布之间的相关电平，并且从具有较高相关电平的分布开始依次执行配对。

公开(公告)号：US06756933B2

公开(公告)日：2004-06-29

申请号：US10300583

申请日：2002-11-21

申请人： Toru Ishii ,  Motoi Nakanishi ,  Tetsu Nishimura

发明人： Toru Ishii ,  Motoi Nakanishi ,  Tetsu Nishimura

IPC分类号： G01S740

CPC分类号： G01S7/4008 ,  G01S13/345 ,  G01S13/42 ,  G01S13/584 ,  G01S13/931

摘要： A radar system and a characteristic adjustment method for the radar system are provided, in which a control voltage waveform of a voltage controlled oscillator for frequency-modulating a sending signal can be set in a short time without increasing the required amount of memory. In adjusting time-varying characteristics of a voltage signal for frequency modulation on a voltage controlled oscillator determining a sending frequency, the time-varying characteristics of the voltage signal for frequency modulation are adjusted to optimize a form of a protrusion in signal intensity included in a frequency spectrum of a beat signal.

摘要翻译： 提供一种用于雷达系统的雷达系统和特征调整方法，其中可以在短时间内设置用于频率调制发送信号的压控振荡器的控制电压波形，而不增加所需的存储量。 在调整用于频率调制的电压信号的时变特性来确定发送频率时，调整用于频率调制的电压信号的时变特性以优化信号强度中包括的信号强度的形式 拍频信号的频谱。

公开(公告)号：US06707416B2

公开(公告)日：2004-03-16

申请号：US10359720

申请日：2003-02-07

申请人： Toru Ishii ,  Tetsu Nishimura ,  Motoi Nakanishi

发明人： Toru Ishii ,  Tetsu Nishimura ,  Motoi Nakanishi

IPC分类号： G01S728

CPC分类号： G01S13/931 ,  G01S7/003 ,  G01S13/345 ,  G01S13/42 ,  G01S13/584

摘要： A radar system is capable of transmitting necessary information through a very small amount of data from a radar device to a host device via a bus with a limited bandwidth. A radar sensor generates a beat signal between a transmission signal and a reflected signal from a target. A signal processor determines a spectrum of the beat signal and compresses the data indicating the spectrum. The resultant compressed data is transmitted to the host device via a bus. The host device decompresses the received data thereby reproducing the spectrum data. The host device then detects the target on the basis of the reproduced spectrum data.

摘要翻译： 雷达系统能够通过具有有限带宽的总线从雷达装置通过非常少量的数据传送必要的信息到主机设备。 雷达传感器在发射信号和来自目标的反射信号之间产生拍频信号。 信号处理器确定拍频信号的频谱并压缩指示频谱的数据。 所得到的压缩数据通过总线传输到主机设备。 主机设备解压接收的数据，从而再现频谱数据。 然后主机设备基于再现的频谱数据检测目标。

公开(公告)号：US07312745B2

公开(公告)日：2007-12-25

申请号：US10584256

申请日：2004-11-08

申请人： Toru Ishii ,  Motoi Nakanishi

发明人： Toru Ishii ,  Motoi Nakanishi

IPC分类号： G01S13/34

CPC分类号： G01S13/584 ,  G01S13/345

摘要： A radar wherein, in accordance with a peak frequency f1[t−nT] of a first projecting portion at a predetermined timing t−nT, a center frequency fr[t] of peak frequencies of first and second projecting portions at a current measurement timing t is predicted, and f1[t] and f2[t] in which (f1[t]+f2[t])/2 approximates the predicted fr[t] is extracted as a pair candidate. In addition, f1[t] and f2[t] in which Doppler shift frequency is substantially equal to a Doppler shift frequency calculated from the peak frequency f1[t−nT] of the first projecting portion and the peak frequency f2[t−nT] of the second projecting portion are selected.

摘要翻译： 一种雷达，其中，根据在预定定时t-nT的第一投影部分的峰值频率f 1 [t-nT]，在当前测量时的第一和第二突出部分的峰值频率的中心频率fr [t] 时间t被预测，并且f 1 [t]和f 2 [t]被提取为对候选者，其中（f 1 [t] + f 2 [t]）/ 2近似于预测的fr [t]。 另外，多普勒频移基本上等于从第一投影部分的峰值频率f 1 [t-nT]计算出的多普勒频移的频率f 1 [t]和f 2 [t]，峰值频率f 2 选择第二突出部分的[t-nT]。

公开(公告)号：US20070153255A1

公开(公告)日：2007-07-05

申请号：US10584256

申请日：2004-11-08

申请人： Toru Ishii ,  Motoi Nakanishi

发明人： Toru Ishii ,  Motoi Nakanishi

IPC分类号： G01P3/36 ,  G01C3/08

CPC分类号： G01S13/584 ,  G01S13/345

摘要： A radar wherein, in accordance with a peak frequency f1[t-nT] of a first projecting portion at a predetermined timing t-nT, a center frequency fr[t] of peak frequencies of first and second projecting portions at a current measurement timing t is predicted, and f1[t] and f2[t] in which (f1[t]+f2[t])/2 approximates the predicted fr[t] is extracted as a pair candidate. In addition, f1[t] and f2[t] in which Doppler shift frequency is substantially equal to a Doppler shift frequency calculated from the peak frequency f1[t-nT] of the first projecting portion and the peak frequency f2[t-nT] of the second projecting portion are selected.

公开(公告)号：US20060109168A1

公开(公告)日：2006-05-25

申请号：US10519642

申请日：2003-06-10

申请人： Motoi Nakanishi ,  Toru Ishii ,  Tetsu Nishimura

发明人： Motoi Nakanishi ,  Toru Ishii ,  Tetsu Nishimura

IPC分类号： G01S13/42

CPC分类号： G01S13/06 ,  G01S3/16 ,  G01S13/345 ,  G01S13/426 ,  G01S13/584 ,  G01S13/931

摘要： A radar can detect target azimuths located outside and adjacent to a scanning angular range of a beam determining changes in received signal strength (a signal-strength profile) in the azimuthal direction as a function of a beam azimuth in a predetermined scanning angular range, and estimating the target azimuth causing the signal-strength profile from the signal-strength profile, which is a portion of a convex located adjacent to the outermost angle in the scanning angular range. For example, the target azimuth is estimated by a ratio between the received signal strength at the outermost angle of about 10.0° and the received signal strength at about 9.5°, which is one beam inside the outermost position.

摘要翻译： 雷达可以检测位于光束的扫描角度范围外并与扫描角度范围相邻的目标方位角，确定方位角方向上的接收信号强度（信号强度分布）的变化，作为预定扫描角度范围内的波束方位角的函数，以及 估计从信号强度分布中引起信号强度分布的目标方位角，该信号强度分布是位于与扫描角度范围内的最外角相邻的凸部的一部分。 例如，目标方位通过在最外角度约10.0°处的接收信号强度与在最外侧位置处的一束之间的约9.5°处的接收信号强度之间的比率来估计。

公开(公告)号：US06825797B2

公开(公告)日：2004-11-30

申请号：US10388531

申请日：2003-03-17

申请人： Toru Ishii ,  Motoi Nakanishi ,  Tetsu Nishimura

发明人： Toru Ishii ,  Motoi Nakanishi ,  Tetsu Nishimura

IPC分类号： G01S1300

CPC分类号： G01S7/4008 ,  G01S13/345 ,  G01S13/42 ,  G01S13/584 ,  G01S13/931

摘要： A radar system achieves adjustment of a time-change characteristic of a frequency-modulating voltage signal to a voltage-controlled oscillator for determining a transmitting signal such that the time-change characteristic of the frequency-modulating voltage signal is changed by a minute amount and the frequency spectrum of a beat signal is determined. The adjustment is performed so that the shape of a bulge in signal intensity included in the frequency spectrum is the sharpest.

摘要翻译： 雷达系统实现将调频电压信号的时变特性调整到压控振荡器，以确定发射信号，使频率调制电压信号的时变特性变化微小量， 确定拍频信号的频谱。 执行调整，使得包括在频谱中的信号强度的凸起形状是最尖锐的。

公开(公告)号：US07466260B2

公开(公告)日：2008-12-16

申请号：US11946696

申请日：2007-11-28

申请人： Toru Ishii ,  Motoi Nakanishi

发明人： Toru Ishii ,  Motoi Nakanishi

IPC分类号： G01S13/58 ,  G01S13/34

CPC分类号： G01S13/584 ,  G01S13/343 ,  G01S13/345 ,  G01S13/931

摘要： In a radar apparatus, IF beat signals are detected in a first section and a second section serving as two adjacent frequency up-modulation sections of a transmitted wave. Frequency conversions such as FFTs are performed on the IF beat signals so that the frequency spectra are obtained. Subsequently, peak frequencies are detected from the frequency spectra in the corresponding sections, and the phase difference between the peak frequencies is determined. Since the phase difference calculated in this manner depends on the relative moving distance Δr during the interval between the first section and the second section, the relative moving distance Δr, the relative distance, and the relative velocity at this moment can be calculated from the phase difference.

摘要翻译： 在雷达装置中，在作为发送波的两个相邻频率上调部分的第一部分和第二部分中检测到IF拍频信号。 在IF差拍信号上执行诸如FFT之类的频率转换，从而获得频谱。 随后，从相应部分的频谱中检测峰值频率，并且确定峰值频率之间的相位差。 由于以这种方式计算的相位差取决于在第一部分和第二部分之间的间隔期间的相对移动距离Deltar，所以相对移动距离Deltar，相对距离和此时的相对速度可以从相位 区别。

公开(公告)号：US20080088500A1

公开(公告)日：2008-04-17

申请号：US11946696

申请日：2007-11-28

申请人： Toru Ishii ,  Motoi Nakanishi

发明人： Toru Ishii ,  Motoi Nakanishi

IPC分类号： G01S13/58

CPC分类号： G01S13/584 ,  G01S13/343 ,  G01S13/345 ,  G01S13/931

摘要： In a radar apparatus, IF beat signals are detected in a first section and a second section serving as two adjacent frequency up-modulation sections of a transmitted wave. Frequency conversions such as FFTs are performed on the IF beat signals so that the frequency spectra are obtained. Subsequently, peak frequencies are detected from the frequency spectra in the corresponding sections, and the phase difference between the peak frequencies is determined. Since the phase difference calculated in this manner depends on the relative moving distance Δr during the interval between the first section and the second section, the relative moving distance Δr, the relative distance, and the relative velocity at this moment can be calculated from the phase difference.

摘要翻译： 在雷达装置中，在作为发送波的两个相邻频率上调部分的第一部分和第二部分中检测到IF拍频信号。 在IF差拍信号上执行诸如FFT之类的频率转换，从而获得频谱。 随后，从相应部分的频谱中检测峰值频率，并且确定峰值频率之间的相位差。 由于以这种方式计算的相位差取决于在第一部分和第二部分之间的间隔期间的相对移动距离Deltar，所以相对移动距离Deltar，相对距离和此时的相对速度可以从相位 区别。