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公开(公告)号：US20070024431A1
公开(公告)日：2007-02-01
申请号：US11491942
申请日：2006-07-25
申请人： Hiroshi Touge
发明人： Hiroshi Touge
IPC分类号： B60Q1/00
CPC分类号： B60Q9/00 , E05C17/006 , E05F15/43 , E05F2015/433 , E05F2015/483 , E05Y2900/546 , G01S7/527 , G01S15/04 , G01S15/88
摘要： An obstacle detecting system for a vehicle, which includes an ultrasonic sensor provided at a vehicle body for detecting obstacles surrounding the vehicle. A central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to approximately follow a surface of the vehicle body.
摘要翻译： 一种用于车辆的障碍物检测系统，其包括设置在车体处的用于检测车辆周围的障碍物的超声波传感器。 来自超声波传感器的超声波的发送方向的中心轴配置成大致跟随车身的表面。
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公开(公告)号：US07164621B2
公开(公告)日：2007-01-16
申请号：US10995268
申请日：2004-11-24
申请人： Akira Okunishi , Yasushi Nishimori , Yasuo Ito
发明人： Akira Okunishi , Yasushi Nishimori , Yasuo Ito
CPC分类号： G01S7/527 , G01S7/521 , G01S15/96 , Y10S367/901
摘要： While keeping a propeller located in a negative direction of a y-axis turning, transmission of acoustic waves from vibrating elements of a transducer unit is interrupted. Reference signals “A” and “B” which are receiving beam signals having principal acoustic axes oriented in a propeller direction are generated from received signals obtained by “A” and “B” group vibrating elements, respectively. Next, adjustment factors used for removing propeller noise from received signals obtained by vibrating elements on positive and negative sides of an x-axis are calculated by performing arithmetic operation on time-series data on the received signals obtained by the positive and negative sides vibrating elements and on time-series data on the reference signals “A” and “B”, respectively. When performing underwater sounding operation by transmitting acoustic waves, a product of the reference signal “A” or “B” and the adjustment factor is subtracted from the received signal obtained by each of the positive and negative sides vibrating elements, respectively.
摘要翻译： 在保持螺旋桨位于y轴转动的负方向的同时，传声器单元的振动元件的声波被中断。 分别由从“A”和“B”组振动元件获得的接收信号产生接收具有以螺旋桨方向取向的主声轴的波束信号的参考信号“A”和“B”。 接下来，通过对由正负侧振动元件获得的接收信号的时间序列数据进行运算，来计算用于从由x轴的正侧和负侧的振动元件获得的接收信号中去除螺旋桨噪声的调整因子 以及关于参考信号“A”和“B”的时间序列数据。 当通过发送声波进行水下探测操作时，从分别由正侧振动元件和负侧振动元件获得的接收信号中减去参考信号“A”或“B”的乘积和调整因子。
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公开(公告)号：US20060193206A1
公开(公告)日：2006-08-31
申请号：US10551673
申请日：2004-03-24
申请人： Pierre Alinat , Georges Bienvenu
发明人： Pierre Alinat , Georges Bienvenu
CPC分类号： G01S7/539 , G01S7/527 , G01S15/108 , G01S15/523
摘要： The invention relates to the field of underwater acoustics and more particularly to the field of signal processing in a low frequency (LF) active sonar system. The present invention makes it possible to decrease the false alarm rate while retaining the classification of the objects. The subject of the invention is a method of processing signals received corresponding to a signal emitted comprising by recurrence two pulses, a first Doppler tolerant broadband pulse of HFM type in particular and a second Doppler intolerant broadband pulse of BPSK type in particular, comprising: a step of detecting objects performed on the part of the signal received corresponding to the first pulses and providing an alarm for each object detected, and a step of classifying the objects detected performed on the part of the signal received corresponding to the second pulses for the alarms satisfying at least one predetermined criterion.
摘要翻译： 本发明涉及水下声学领域，更具体地涉及低频（LF）主动声纳系统中的信号处理领域。 本发明使得可以在保持对象的分类的同时降低误报率。 本发明的主题是一种处理相应于发射的信号的信号的方法，包括通过重复两个脉冲，特别是HFM类型的第一多普勒容限宽带脉冲和特别是BPSK型的第二多普勒不耐受宽带脉冲，包括： 检测对应于第一脉冲接收的信号部分执行的物体的步骤，并且为检测到的每个物体提供警报;以及步骤，将对应于第二脉冲接收到的信号的部分进行检测的对象进行分类以用于警报 满足至少一个预定标准。
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公开(公告)号：US20060140054A1
公开(公告)日：2006-06-29
申请号：US10559623
申请日：2004-06-08
申请人： Nathan Intrator , Leon Cooper , Nicola Neretti
发明人： Nathan Intrator , Leon Cooper , Nicola Neretti
IPC分类号： G01S15/02
CPC分类号： G01S7/527
摘要： A system and method of performing sonar range estimations in a noisy sonar environment. The system includes a sensor, a transmitter, a receiver, a plurality of band-pass filters, a cross correlator, and a data analyzer. The transmitter transmits a pulse through a transmission medium. The pulse travels through the transmission medium until it strikes an object, which returns an echo to the sensor. The sensor provides the echo to the receiver, which provides an indication of the echo to the band-pass filters. The respective band-pass filters provide filtered versions of the echo and pulse to the cross correlator, which performs multiple cross correlation operations on the filtered echo and pulse. The cross correlator provides output data to the data analyzer, which uses the data to estimate the SNR in the environment and to determine a pulse center frequency corresponding to the estimated SNR. By controlling the center frequency of pulses emitted by the transmitter based on information provided by the data analyzer, the system obtains sonar range estimations with increased accuracy.
摘要翻译： 在噪声声纳环境中执行声纳范围估计的系统和方法。 该系统包括传感器，发射器，接收器，多个带通滤波器，互相关器和数据分析器。 发射机通过传输介质发送脉冲。 脉冲通过传输介质，直到其撞击物体，这将返回到传感器。 传感器向接收器提供回波，其提供带通滤波器的回波的指示。 相应的带通滤波器向互相关器提供回波和脉冲的滤波版本，其对滤波的回波和脉冲执行多个互相关操作。 交叉相关器向数据分析器提供输出数据，数据分析器使用数据来估计环境中的SNR，并确定与估计的SNR相对应的脉冲中心频率。 通过根据数据分析仪提供的信息控制发射机发出的脉冲的中心频率，系统以更高的精度获得声纳范围估计。
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公开(公告)号：US07035776B2
公开(公告)日：2006-04-25
申请号：US10258646
申请日：2001-04-25
申请人： Philippe Rubbers
发明人： Philippe Rubbers
CPC分类号： G01N29/4436 , G01N29/38 , G01N29/42 , G01N29/46 , G01N2291/012 , G01N2291/044 , G01S7/52026 , G01S7/527 , G01S15/8906 , G01S15/8954 , G01S15/8977
摘要： The invention provides for improved signal to noise ratios in evaluation techniques. This is done by acquiring a signal, processing it to obtain a complex form thereof, obtaining a filtering factor from the complex form and processing the acquired signal with the filtering factor. The signal may be areturned ultrasonic, radar or sonar signal which may be reflected from a suitably sharp pulse. In particular, the invention may he used to evaluate articles to detect defects therein. In a preferred form, the complex form is filtered with a number of complex filters and the phases of the complex filtered signals determined. These phases are then used to provide the filtering factor.
摘要翻译： 本发明提供了评估技术中改善的信噪比。 这是通过获取信号，处理它以获得其复杂形式，从复杂形式获得滤波因子并用滤波因子处理获取的信号来完成的。 信号可以是可以从适当的尖锐脉冲反射的超声波，雷达或声纳信号。 特别地，本发明可以用于评价制品以检测其中的缺陷。 在优选形式中，复数形式用多个复数滤波器进行滤波，并且确定复数滤波信号的相位。 然后使用这些阶段来提供过滤因子。
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46.发明授权公开(公告)号：US07035166B2
公开(公告)日：2006-04-25
申请号：US10688034
申请日：2003-10-17
IPC分类号： G01S15/89
CPC分类号： G01S15/89 , G01S7/52003 , G01S7/527 , G01S7/53 , G01S7/6245 , G01S7/6263 , G01S15/42 , G01S15/93
摘要： An imaging sonar system develops three-dimensional images of the space below, to the sides, and forward of a ship relative to a fixed frame of reference. Various features permit the system to be used in non-military environments and make possible low cost with substantial capabilities.
摘要翻译： 成像声纳系统将相对于固定的参考系的三维图像显示在船的下方，侧面和前方。 各种功能允许系统在非军事环境中使用，并且可以实现具有实质性能力的低成本。
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公开(公告)号：US20060022680A1
公开(公告)日：2006-02-02
申请号：US11214426
申请日：2005-08-29
IPC分类号： G01R27/32
CPC分类号： G01S15/104 , G01F23/2962 , G01N2291/02836 , G01S5/30 , G01S7/527
摘要： An ultrasonic distance measure includes: transmitting and receiving ultrasonic transducers 1, 2 with changeable resonant/resonance frequencies; a driving section 151 generating a frequency-modulated drive signal to drive the transducer 1 and transmit an ultrasonic wave; a transmitting control voltage generating section 152 for generating a control voltage to change the resonant/resonance frequency of the transducer 1 and applying it to the transducer 1 in transmitting the ultrasonic wave; a receiving control voltage generating section 153 for generating a control voltage to change the resonant/resonance frequency of the transducer 2 and applying it to the transducer 2 when a controllable amount of time delay has passed since the drive signal was generated; and a receiving section 154 for sensing the intensity of a signal received as the ultrasonic wave at the transducer 2. The ultrasonic wave is transmitted from the transducer 1 toward an object a number of times, reflected, and then received at the transducer 2 with the time delay changed. The distance measure calculates propagation time of the ultrasonic wave based on the time delay that makes the receiving section receive the ultrasonic wave as a signal with the highest intensity, and measures the object's distance based on the propagation time.
摘要翻译： 超声波距离测量包括：发射和接收具有可变谐振/共振频率的超声换能器1,2; 驱动部分151，产生调频驱动信号以驱动换能器1并发送超声波; 发送控制电压产生部分152，用于产生控制电压以改变换能器1的谐振/共振频率，并在发送超声波时将其施加到换能器1; 接收控制电压产生部分153，用于产生一个控制电压以改变换能器2的谐振/共振频率，并且当从产生驱动信号开始经过可控制的时间延迟时，将其施加到换能器2; 以及用于感测在换能器2处作为超声波接收的信号的强度的接收部分154。 超声波从换能器1朝向物体多次发射，反射，然后在时间延迟改变的情况下在换能器2处接收。 距离测量基于使接收部分接收到超声波作为具有最高强度的信号的时间延迟来计算超声波的传播时间，并且基于传播时间来测量对象的距离。
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48.发明申请公开(公告)号：US20050180530A1
公开(公告)日：2005-08-18
申请号：US11053083
申请日：2005-02-07
申请人： Martin Reiche
发明人： Martin Reiche
CPC分类号： G01S7/527 , G01S7/2922 , G01S7/52004 , G01S15/931
摘要： A method for adapting a threshold value of a detection device comprising the following steps: Transmission of a signal burst having a predefined pulse-repetition interval, a predefined burst length and a defined signal frequency; receiving and processing of a receive signal, in particular by means of amplification, filtering and demodulation, so as to obtain the envelope; determining a receive-signal magnitude as interference-level sample from the receive signal following a first predefined time duration (Δt1) starting with a signal burst within a predefined second time duration (Δt2), preferably at the end of the pulse repetition interval; and adapting the threshold value of the detection device as a function of the interference level sample. Also provided is a device for adapting a threshold value of a detection device.
摘要翻译： 一种用于调整检测装置的阈值的方法，包括以下步骤：具有预定脉冲重复间隔，预定突发长度和限定信号频率的信号脉冲串的传输; 接收和处理接收信号，特别是通过放大，滤波和解调，以获得信封; 在从预定义的第二持续时间内的信号突发开始的第一预定义持续时间（Deltat 1> 1）之后，将接收信号幅度确定为来自接收信号的干扰电平采样（Deltat2 < / SUB>），优选在脉冲重复间隔结束时; 以及根据所述干扰电平采样来适应所述检测装置的阈值。 还提供了一种用于调整检测装置的阈值的装置。
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公开(公告)号：US06909668B2
公开(公告)日：2005-06-21
申请号：US10243732
申请日：2002-09-16
申请人： John R. Baldwin , Martin D. Fox
发明人： John R. Baldwin , Martin D. Fox
CPC分类号： G01S7/527 , G01S15/025 , G01S15/04 , G01S15/523
摘要： An apparatus and method is provided for detecting motion or displacement of an object in a monitored zone. The apparatus is disposed between a load and a power source and comprises a transmitter for providing a pulsed signal within a monitored zone. The pulsed signal interacts with objects in the monitored zone and provides a return signal. A receiver receives echoes from a return signal of the pulsed record signal, and a microcontroller circuit processes the echoes. The processing involves retrieving and comparing phase and amplitude information associated with the echoes.
摘要翻译： 提供了一种用于检测被监测区域中的物体的运动或位移的装置和方法。 该装置设置在负载和电源之间，并且包括用于在监视区域内提供脉冲信号的发射器。 脉冲信号与受监控区域中的物体相互作用并提供返回信号。 接收器从脉冲记录信号的返回信号接收回波，并且微控制器电路处理回波。 该处理涉及检索和比较与回波相关联的相位和振幅信息。
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50.发明授权Ultrasonic sonar and method using transmission frequency different from reverberation frequency 失效超声波声纳和方法使用的传播频率不同于混响频率公开(公告)号：US06490226B2
公开(公告)日：2002-12-03
申请号：US09767751
申请日：2001-01-24
IPC分类号： G01S1510
CPC分类号： G01S15/931 , G01S7/527
摘要： An ultrasonic sonar has a transceiver equipped with an ultrasonic oscillator. An ultrasonic wave is transmitted from the transceiver. The ultrasonic wave reflected from an obstacle is received by the ultrasonic oscillator to detect the obstacle. The transmission frequency of the ultrasonic wave is set to be different from the reverberation frequency. When the obstacle is detected, a microcomputer converts the analog signal received by the ultrasonic oscillator into a digital signal, performs a frequency transform of this signal by Fourier transform to extract only the transmission frequency component, and performs an inverse transform.
摘要翻译： 超声波声纳具有配备有超声波振荡器的收发器。 从收发器发送超声波。 从障碍物反射的超声波被超声波振荡器接收以检测障碍物。 超声波的发送频率被设定为与混响频率不同。 当检测到障碍物时，微型计算机将由超声波振荡器接收的模拟信号转换为数字信号，通过傅里叶变换对该信号进行频率变换，仅提取发送频率成分，进行逆变换。
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