公开(公告)号：US4596007A

公开(公告)日：1986-06-17

申请号：US541313

申请日：1983-10-12

申请人： Georges Grall ,  Francois Peynaud

发明人： Georges Grall ,  Francois Peynaud

IPC分类号： G01S7/52 ,  G01S15/02 ,  G01S15/87 ,  G01S15/89 ,  G10K11/34

CPC分类号： G01S15/87 ,  G01S15/02 ,  G01S15/8909 ,  G01S7/52003 ,  G10K11/343 ,  G01N2291/02491

摘要： An interferometric sonar in non-linear acoustics for high-resolution observations of objects located in the vicinity of the sea floor includes two end transducers for simultaneous transmission at two high frequencies F.sub.1 and F.sub.2 of the order of 200 kHz. Reception is performed by hydrophones placed between the sending transducers at the low frequency F.sub.2 -F.sub.1 of the order of 20 kHz. Angular channels are formed during two transmission sequences. Transmission takes place in phase at the frequency F.sub.2 -F.sub.1 in one sequence and in phase opposition in the other sequence in the case of the two sources generated by non-linear effects.

摘要翻译： 用于对位于海底附近的物体进行高分辨率观测的非线性声学中的干涉声纳包括两个终端换能器，用于在大约200kHz的两个高频F1和F2同时传输。 接收由放置在发送换能器之间的水听器以20kHz的低频F2-F1进行。 角通道在两个传输序列期间形成。 在两个来源由非线性效应产生的情况下，传输在一个序列中以频率F2-F1同步进行，而在另一个序列中相位相反。

公开(公告)号：US06456565B1

公开(公告)日：2002-09-24

申请号：US09594088

申请日：2000-06-15

申请人： Georges Grall ,  Gilles Moresco

发明人： Georges Grall ,  Gilles Moresco

IPC分类号： G01V138

CPC分类号： G01V1/3852 ,  G01V1/201 ,  G01V1/3808

摘要： A system for underwater seismic prospecting or exploration on seafloors, especially deep seafloors, including streamers designed to contain the measurement devices and to lie on the seafloor, in the form of an inner tube that is non-stretching and non-compressible and an outer tube that is extensible to a certain extent. Through the injection of liquid between these two tubes, the buoyancy of each streamers is made positive. This enables it to be detached from the seafloor and towed to the next measuring position.

摘要翻译： 一种用于海底，特别是深海底的水下地震勘探或勘探系统，包括设计成容纳测量装置并位于海底的拖缆，以非拉伸和不可压缩的内管的形式，以及外管 这在一定程度上是可扩展的。 通过这两根管之间的液体注入，每个拖缆的浮力都是正的。 这使它能够从海底脱离并拖到下一个测量位置。

公开(公告)号：US4779239A

公开(公告)日：1988-10-18

申请号：US663165

申请日：1984-10-22

申请人： Georges Grall

发明人： Georges Grall

IPC分类号： G10K11/35 ,  G01S9/66 ,  G01S9/68

CPC分类号： G10K11/355

摘要： A sonar transducer comprising a stack of an even number of antennae with identical linear networks. The stack is driven by a reciprocating rotary movement of low amplitude, with the antennae alternately emitting and receiving with each half wavelength of the rotary movement. The emitting antennae as well as the receiving antennae are mutually staggered by an angle equal to the angle of rotation of the assembly. The assembly of receiving antennae are staggered with respect to the assembly of emitting antennae by an angle equal to the phase delay of an emission lobe with respect to the corresponding reception lobe.

摘要翻译： 包括具有相同线性网络的偶数个天线的堆叠的声纳换能器。 堆叠由低振幅的往复旋转运动驱动，天线以旋转运动的每半波长交替地发射和接收。 发射天线以及接收天线相互交错一个等于组件旋转角度的角度。 接收天线的组件相对于发射天线的组件交错等于发射波瓣相对于相应接收波瓣的相位延迟的角度。

公开(公告)号：US4510586A

公开(公告)日：1985-04-09

申请号：US425703

申请日：1982-09-28

申请人： Georges Grall ,  Jacques Joseph ,  Claude Lemoine

发明人： Georges Grall ,  Jacques Joseph ,  Claude Lemoine

IPC分类号： G01S7/52 ,  G10K11/34 ,  G01S15/02

CPC分类号： G10K11/34 ,  G01S7/52003 ,  Y10S367/905

摘要： An array with high resolving power and low secondary lobe levels, comprising a receiving array formed of transducers along its length L.sub.R, two of these transducers, separated by a distance L.sub.E, also forming the transmitters. The change from transmission to reception and back is effectuated by switches. Signals received by transducers are weighted by resistors before being delivered to beam forming circuits, containing multi-terminal phase shifters and a wiring matrix and adders. The weighting function and ratio L.sub.E /L.sub.R are chosen to ensure that the overall transmission-reception system diagram has high resolving power and low secondary lobe levels.

摘要翻译： 具有高分辨能力和低次级波瓣电平的阵列，包括由其长度LR的换能器形成的接收阵列，这些换能器中的两个隔开距离LE，也形成发射器。 从发射到接收和反向的变化由开关实现。 由传感器接收的信号在被传送到波束形成电路之前被电阻器加权，波束形成电路包含多端移相器和布线矩阵和加法器。 选择加权函数和比例LE / LR以确保整个发送 - 接收系统图具有高分辨率和低次级波次。

公开(公告)号：US20090316526A1

公开(公告)日：2009-12-24

申请号：US12527836

申请日：2008-02-08

申请人： Georges Grall

发明人： Georges Grall

IPC分类号： G01V1/38

CPC分类号： G01V1/3826

摘要： Systems are described which make it possible to carry out a 3D seismic survey from the surface of the sea. The systems include individual standalone assemblies each including an electrically propelled fish which tows each seismic streamer the other end of which is positioned by a tail fish. These assemblies are connected, electrically and mechanically, via an electro-towing cable to the streamlined cables for towing the diverging paravanes.

摘要翻译： 描述了使得可以从海面执行3D地震勘测的系统。 这些系统包括单独的独立组件，每个组件包括电推进的鱼，其牵引每个地震拖缆，其另一端由尾鱼定位。 这些组件通过电牵引电缆电连接和机械连接到流线型电缆上，用于牵引发散的歧管。

公开(公告)号：US5058081A

公开(公告)日：1991-10-15

申请号：US582330

申请日：1990-09-14

申请人： Christian Gulli ,  Jean Le Gall ,  Georges Grall

发明人： Christian Gulli ,  Jean Le Gall ,  Georges Grall

IPC分类号： G01S7/534 ,  G01V1/22 ,  G10K11/34

CPC分类号： G01V1/22 ,  G01S7/534 ,  G10K11/346

摘要： In a method of formation of channels for a sonar, after having sampled at a frequency T=1/4f.sub.0 (where f.sub.0 is the receiving center frequency of the sonar) the signals from the hydrophones of the sonar and having translated them to baseband, the signals thus translated are subsampled with a period T.sub.SE =kT (wherein k is an integer) substantially equal to 1.25 B, where B is the reception bandwidth of the sonar. A first set of signals is subsampled at identical times to form a frontal sector. Two further sets of signals are subsampled with delays between the signals from two adjacent hydrophones equal to T, which determines two side sectors adjacent to the frontal sector. The subsampled signals are then transmitted serially by the towing cable of the sonar device towed array and are processed in FFT circuits which allow to form in each sector a set of channels covering the sector. This allows to considerably reduce the data transmission rate between the towed portion of the sonar and the portion located in the towing ship.

摘要翻译： 在形成用于声纳的声道的方法中，在以声纳的水听器的频率T = 1 / 4f0（其中f0是声纳的接收中心频率）的频率进行采样并将其转换为基带之后， 如此翻转的信号以基本上等于1.25B的周期TSE = kT（其中k是整数）进行子采样，其中B是声纳的接收带宽。 第一组信号在相同的时间被二次采样以形成正面扇区。 两个另外的信号组被二次采样，两个相邻水听器的信号之间的延迟等于T，其确定与前部扇区相邻的两个侧扇区。 子采样信号然后通过声纳设备牵引阵列的牵引电缆串行发送，并且在FFT电路中进行处理，其允许在每个扇区中形成覆盖扇区的一组信道。 这允许显着地减少曳引的拖曳部分与拖曳船之间的数据传输速率。

公开(公告)号：US6002647A

公开(公告)日：1999-12-14

申请号：US107272

申请日：1998-06-30

申请人： Georges Grall

发明人： Georges Grall

IPC分类号： G01V1/38 ,  G10K11/20 ,  H04R1/44

CPC分类号： G01V1/3861 ,  G10K11/205

摘要： A device for transmitting acoustically toward the bottom of the sea includes an arrangement of a cable 404 containing vertically suspended electro-acoustic transducers 403 wherein each of said transducers are assigned to a frequency of the pulse spectrum to be emitted. The transducers are attached to the cable at such positions whereby the wave transmitted toward the sea floor is in phase with the reflective wave on the surface of the sea The superimposition of different elementary signals constitutes a single strong pulse. The device replaces air gun devices for oil exploration.

摘要翻译： 用于在声学上朝向海底传输的装置包括包含垂直悬挂的电声换能器403的电缆404的装置，其中每个所述换能器被分配给要发射的脉冲频谱的频率。 换能器在这样的位置处附接到电缆，由此朝向海底传输的波与海面上的反射波同相。不同的基本信号的叠加构成单个强脉冲。 该装置取代用于石油勘探的气枪装置。

公开(公告)号：US5856954A

公开(公告)日：1999-01-05

申请号：US836882

申请日：1997-06-27

申请人： Georges Grall

发明人： Georges Grall

IPC分类号： G01S7/521 ,  G01V1/145 ,  G01V1/38 ,  G10K9/12

CPC分类号： G10K9/121 ,  G01S7/521 ,  G01V1/145 ,  G01V1/38

摘要： A process of acoustic emission for sonar with a separate emission array from the receiving array. The emission array has the shape of a linear acoustic array and can either be towed simultaneously with linear acoustic receiving array or be suspended from a helicopter to form a "dipping" type sonar. Detection using this type of sonar is facilitated by increasing the sound level via the directivity index, while reducing the level of reverberation originating from the bed and from the surface of the sea.

摘要翻译： PCT No.PCT / FR95 / 01679 Sec。 371日期：1997年6月27日 102（e）日期1997年6月27日PCT提交1995年12月15日PCT公布。 出版物WO96 / 20415 PCT 日期1996年7月4日声纳发射与接收阵列具有单独发射阵列的声发射过程。 发射阵列具有线性声阵列的形状，并且可以与线性声学接收阵列同时牵引或者从直升机悬挂以形成“浸渍”型声纳。 通过经由指向性指数增加声级，同时降低源自床和从海面的混响水平，便于使用这种类型的声纳进行检测。

公开(公告)号：US4951268A

公开(公告)日：1990-08-21

申请号：US349760

申请日：1989-05-10

申请人： Georges Grall

发明人： Georges Grall

IPC分类号： G01S15/89 ,  G01S15/42

CPC分类号： G01S15/42

摘要： In a sonar used to determine the characteristics of the underwater mines, the emission diagram in the vertical plane is modified to obtain two main lobes separated by a central zero value. At reception, the bearing/frequency display system shows a dark strip separated by two luminous strips. When the echo from a mine persists, in going through the dark zone, it is recognized that it pertains to a moored mine floating in the water, thus enabling moored mines to be identified and their submersion depth measured.

摘要翻译： 在用于确定水下矿井特征的声纳中，垂直平面中的发射图被修改以获得由中心零点分开的两个主瓣。 在接收时，轴承/频率显示系统显示由两个发光条分开的暗条。 当来自矿井的回声持续时，经过黑暗的地带，人们认识到它属于浮在水面上的停泊矿井，从而能够确定停泊的地雷，并测量其沉没深度。

公开(公告)号：US4794574A

公开(公告)日：1988-12-27

申请号：US808652

申请日：1985-10-29

申请人： Georges Grall

发明人： Georges Grall

IPC分类号： G01S7/52 ,  G10K11/34 ,  G01S15/02 ,  H04R1/32

CPC分类号： G01S7/52003 ,  G10K11/341 ,  Y10S367/905

摘要： A system of emission array with several pairs of emitting transducers to emit simultaneously and covering contiguous frequency sub-bands of a band B. The sub-bands have a width which is less than or at most equal to the width inducing an acceptable displacement of the directivity lobes of the emission pattern of a pair of arrays. The emitters of a single pair are spaced by a distance of L.sub.i and emit signal pulses at frequency f.sub.i and of duration .tau..sub.e 1/.DELTA.f, the products L.sub.i f.sub.i being equal for all the pairs of emitters.The emission patterns of the various pairs of emitters accordingly coincide precisely, and, as the emitters are supplied with signals emerging from the oscillators which are in phase at the center of the pulse of duration .tau..sub.e, the pulse resulting from the superposition of the emitted signals is compressed in time.

摘要翻译： 具有多对发射换能器以同时发射并覆盖带B的连续频率子带的发射阵列的系统。子带的宽度小于或者至多等于导致可接受的位移的宽度 一对阵列的发射模式的方向性波瓣。 单对的发射器间隔一定距离的Li并以频率f 1和持续时间τe1 / DELTA f发射信号脉冲，对于所有发射器对，乘积Lifi相等。 因此，发射器的发射模式精确地重合，并且当发射器被提供有从持续时间τe的脉冲中心处的同相位置的振荡器出来的信号时，由所发射的发射器的叠加产生的脉冲 信号在时间上被压缩。