Abstract

The present invention relates to a method for reconstructing an image of a scene using an antenna system and comprising, for each pixel of the image: a. receiving samples of wide-band time-domain signals backscattered by reflectors of the scene; b. for each direction among a plurality of directions, determining, based on the received samples, new samples of a new time-domain signal associated with said each direction, respectively, each new signal corresponding to a wide-band plane wave in said each direction, respectively; c. for each direction among the plurality of directions, selecting, from the new samples of the respective new time-domain signal, samples corresponding to a there-and-back path time of said new signal from an origin of the image to said each pixel; and d. determining a light intensity of said each pixel based on delayed samples.

IPC Classes  ?

• G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
• G01S 13/90 - Radar or analogous systems, specially adapted for specific applications for mapping or imaging using synthetic aperture techniques

Abstract

The present invention relates to an underwater vehicle provided with a sonar for detecting underwater objects, the sonar being a sonar with an elevation angular coverage of between 45 and 240 degrees, which sonar is oriented towards the surface when the underwater vehicle is in the phase of detecting an underwater object, and a bearing angular coverage of less than 10 degrees to obtain measurements in a plane, wherein all of the measurements in a plane are obtained in one transmitting/receiving cycle, the sonar enabling submerged objects located at a depth less than that of the underwater vehicle to be detected.

IPC Classes  ?

• G01S 15/42 - Simultaneous measurement of distance and other coordinates
• G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
• G01S 15/87 - Combinations of sonar systems
• G01S 15/10 - Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
• G01S 7/527 - Extracting wanted echo signals
• G01S 15/46 - Indirect determination of position data
• B63G 7/00 - Mine-sweepingVessels characterised thereby

Abstract

The invention relates to a recovery and/or launch system (100) for marine or submarine craft, in particular autonomous, semi-autonomous or towed craft, from a vessel, comprising an at least partially submersible receiving device (190) provided with a movable accommodating member (130) which has a main wall (135) defining an accommodating space, characterised in that the recovery and/or launch system (100) further comprises a control and monitoring unit (190) configured to place the accommodating member (130) in a determined position according to at least one said craft (200a, 200b) to be recovered, and in that the accommodating member (130) is configured to directly or indirectly substantially hold opposite its accommodating space the at least one said craft (200a, 200b) in the determined position of the accommodating member (130) in which its main wall (135) has a determined general orientation.

IPC Classes  ?

• B63B 27/36 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for floating cargo

Abstract

The invention relates to a device (3) for receiving a marine or sub-marine vehicle from a ship, comprising a receiving member (23) against which a front portion of the marine or sub-marine vehicle is configured to bear, the device being characterised in that the receiving member has an overall funnel-shaped main wall (30) defining a receiving space (31), at least one first recess (34) provided in the main wall inside the receiving space and configured to receive a protrusion provided on the front portion of the marine or sub-marine vehicle, and at least one locking member (40) that can move between an unlocked position and a locked position, wherein the locking member projects into the receiving space and is configured to lock the front portion of the marine or sub-marine vehicle in position in the receiving space.

IPC Classes  ?

• B63B 27/36 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for floating cargo

Abstract

The invention relates to an autonomous underwater vehicle (1, 30, 50, 80), which comprises a hull (3, 40, 60, 86) extending along a longitudinal main axis (5, 38, 58, 99), and at least one vehicle uprighting device configured to alter a trim angle of the vehicle (1, 30, 50, 80) between a nominal horizontal position of the vehicle and a vertical position of the vehicle, characterised in that the vehicle uprighting device comprises one or more arms (24, 26, 32, 52, 62, 92) mounted on the hull (3, 40, 60, 86) by a proximal end (24a, 26a) and rotatably hinged to the hull (3, 40, 60, 86), and comprising a float (28, 29, 34, 54, 64, 90) at a distal free end (24b, 26b).

IPC Classes  ?

• B63G 8/14 - Control of attitude or depth
• B63G 8/26 - Trimming equipment
• B63G 8/00 - Underwater vessels, e.g. submarines

Abstract

A system for the recovery of a surface marine craft by a carrier ship includes a lifting device with which the carrier ship is intended to be equipped and which includes a lifting unit of the davit type, equipped with a lifting cable including, at one end, a connection interface, a pole bearing a guide cable, an anchor connected to one end of the guide cable, the connection interface for the lifting cable being coupled removably to the anchor, and a hauling cable. The system also includes a receiving device with which the marine craft is intended to be equipped, the receiving device including a forward module.

IPC Classes  ?

• B63B 27/36 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for floating cargo
• B63B 21/58 - Adaptations of hooks for towingTowing-hook mountings
• B63B 23/60 - Additional connections between boat and davit
• B63B 27/16 - Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
• B66C 13/02 - Devices for facilitating retrieval of floating objects, e.g. for recovering craft from water

Abstract

The invention relates to a system for the recovery of a surface marine craft (4) by a carrier ship (1). The system comprises a lifting device with which the carrier ship (1) is intended to be equipped and which comprises a lifting means of the davit type (5), equipped with a lifting cable (7) comprising, at one end, a connection interface, a pole (9) bearing a guide cable (10), an anchor (11) connected to one end of the guide cable (10), the connection interface for the lifting cable (7) being coupled removably to the anchor (11), and a hauling cable (12). The system also comprises a receiving device with which the marine craft (4) is intended to be equipped, the receiving device comprising a forward module (13), intended to be fitted to the bow of the marine craft (4) and configured to receive the guide cable (10) and the lifting cable (7) and comprising a receiving housing able to receive the anchor (11), the fixing of the anchor (11) forward module (13) bringing about the fixing of the connection interface for the lifting cable (7) to a handle connected removably to the forward module (13), and a lifting support configured to accept and immobilize the handle (21).

IPC Classes  ?

• B63B 23/48 - Use of lowering or hoisting gear using winches for boat handling
• B63B 27/36 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for floating cargo
• B63B 23/60 - Additional connections between boat and davit
• B63B 27/16 - Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists

Abstract

A device (10) for detecting a signal of interest in order to locate an underwater source of the signal. The device includes a receiver (13) configured to detect the signal of interest, an actuator (14) configured to allow at least a portion of the detection device (10) to move towards a zone indicating a result of detection of the signal of interest in response to the receiver being operated, and an emitter (15) configured to indicate the result of detection of the signal of interest.

IPC Classes  ?

• B63C 11/48 - Means for searching for underwater objects
• B63B 22/00 - Buoys
• B63B 22/06 - Anchoring arrangements with means to cause the buoy to surface in response to a transmitted signal
• B63B 22/20 - Ballast means
• B63C 7/26 - Means for indicating the location of underwater objects, e.g. sunken vessels
• G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
• G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations
• G01S 5/26 - Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements

Abstract

The invention relates to a system for supplying power to a captive remote-operated device (10), including an electrical power source (21) that is configured to deliver electrical power, and an electric cable (20) that is electrically connected to said electrical power source and configured to convey said electrical power to said captive remote-operated device in order to supply power to at least one rotary electric machine and/or system elements incorporated within said captive remote-operated device; characterized in that said electrical power source is configured to deliver a three-phase AC high voltage, said electric cable is configured to convey said three-phase AC high voltage and said system additionally includes a power management and conversion unit that is incorporated within said captive remote-operated device and configured to rectify said three-phase AC high voltage received to a DC high voltage and to decrease said DC high voltage to a DC low voltage.

IPC Classes  ?

• A63H 30/02 - Electrical arrangements
• A63H 27/04 - Captive toy aircraft
• B64C 39/02 - Aircraft not otherwise provided for characterised by special use
• B64F 3/02 - Ground installations specially adapted for captive aircraft with means for supplying electricity to aircraft during flight

Abstract

The invention concerns a device (10) for detecting a signal of interest in order to locate an underwater source of the signal. The device comprises a receiver (13) configured to detect the signal of interest, an actuator (14) configured to allow at least a portion of the detection device (10) to move towards a zone indicating a result of detection of the signal of interest in response to the receiver being operated, and an emitter (15) configured to indicate the result of detection of the signal of interest.

IPC Classes  ?

• B63B 22/00 - Buoys
• B63B 22/06 - Anchoring arrangements with means to cause the buoy to surface in response to a transmitted signal
• B63B 22/20 - Ballast means
• B63C 11/48 - Means for searching for underwater objects
• G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations

Abstract

A marine or submarine craft intended to be secured to a recovery cable by one end (2b) provided with a cuff (7), comprising means (8) for the contact-free detection of the cable (2) capable of guiding the craft (1) towards the cable (2) and means (7) for gripping the cable (2) comprising at least one locking ring (12a, 12b) located on the marine craft (1) and having an opening (13a, 13b) for the passage of the cable closed by a snap hook and at least one clamp (lla, llb) mobile in rotation between a closed gripping position in which the clamp (lla, llb) cooperates with a locking ring (12a, 12b) in order to leave a space (E) for the passage of the cable (2) and an open position moving away from the outer surface (3d) of the craft (1). At least one sling (18a, 18b) is attached to the craft and is linked to the locking ring (12a, 12b). The locking ring is capable of dislodging from the housing of same on the craft (1) when the cuff (7) comes into abutment against the locking ring (12a, 12b).

IPC Classes  ?

• B63B 21/58 - Adaptations of hooks for towingTowing-hook mountings
• B63B 21/66 - Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
• B63B 27/18 - Arrangement of ship-based loading or unloading equipment for cargo or passengers of cableways, e.g. with breeches-buoys
• B63C 11/42 - Diving chambers with mechanical link, e.g. cable, to a base of closed type with independent propulsion or directional control
• B63G 8/00 - Underwater vessels, e.g. submarines
• B63G 8/42 - Towed underwater vessels

Abstract

2) that is perpendicular to the sea bed (F) and of the value determined for the angle of sight.

IPC Classes  ?

• G01S 15/00 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
• G01S 15/60 - Velocity or trajectory determination systemsSense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
• G01S 15/58 - Velocity or trajectory determination systemsSense-of-movement determination systems

Abstract

b) of the vehicle (1) for coupling the cable (2).

IPC Classes  ?

• B63B 21/58 - Adaptations of hooks for towingTowing-hook mountings
• B63B 21/66 - Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
• B63B 27/18 - Arrangement of ship-based loading or unloading equipment for cargo or passengers of cableways, e.g. with breeches-buoys
• B63C 11/42 - Diving chambers with mechanical link, e.g. cable, to a base of closed type with independent propulsion or directional control
• B63G 8/42 - Towed underwater vessels
• B63G 8/00 - Underwater vessels, e.g. submarines

Abstract

A flying vehicle is provided that comprises first and second rotors respectively mounted in rotation about first and second rotation axes, the first rotor including a first group of blades extending in a first blade plane and the second rotor including a second group of blades extending in a second blade plane, each of the first and second rotors being rotated by a driving means of the machine. The driving means includes at least one engine arranged between said rotors and between said first and second blade planes.

IPC Classes  ?

• B64C 27/08 - Helicopters with two or more rotors

Abstract

A device for destroying subsea objects comprising a first part 2 provided with propulsive units, a second part 4 which can pivot relative to the first part on an axis, so that the device can approach a subsea object from different directions, and a fairing 3 protecting the second part 4.

IPC Classes  ?

• B63G 8/00 - Underwater vessels, e.g. submarines