摘要:
The invention relates to an underwater antenna apparatus comprising a non-stationary antenna, an extension device and a return positioning device, wherein an extension force in an extension force direction can be impressed by the extension device of the antenna and a counterforce acting in opposition to the extension force in a counterforce direction can be impressed by the return positioning device of the antenna, characterized in that the return positioning device or part of the return positioning device is configured so as to be non-stationary in a defined manner, with the result that by changing the location in a defined manner, the antenna can be positioned in a retracted position, an extended position or an intermediate position.
摘要:
The invention relates to a method for spatially filtering sound waves 2 which propagate in water and are emitted by at least one source. For this purpose, these sound waves 2 are received by a receiving arrangement 6 having a multiplicity of electroacoustic transducers 8 and corresponding reception signals 20 are formed. The reception signals 20 are used to generate a spatial energy spectrum from which significant levels p(i) are selected for each control direction i to be considered. A signal model matrix R M is determined from an antenna response a( k ) associated with the receiving arrangement 6 and from the selected levels p. A source control vector a Source (k) which optimally suppresses all significant sources is then determined from this signal model matrix R M and from the antenna response a( k ). A check is also carried out in order to determine whether there is a source in the control direction (i) to be considered . If this is the case, a filter control vector a Filter (k) is determined from the signal model matrix R M and from the antenna response a( k ) for this control direction i. However, if no source is determined in the control direction i to be considered, the filter control vector a Filter (k) corresponds to the source control vector a Source (k) , as a result of which the secondary levels are optimally suppressed. The filter control vector determined in this manner can be used to spatially filter the sound waves 2 emitted by a source. The invention also relates to a corresponding apparatus for carrying out the method.
摘要:
The invention relates to a distance determination method (94), which can be used as part of a distance control method (92) for a method (90) for inspecting a flooded tunnel (4), in particular a pipeline or a water supply tunnel, by means of an underwater vehicle (1), in particular an autonomous one. The invention further relates to a distance control method (92) and the method (90) for inspecting the tunnel (4), and to the underwater vehicle (1) having corresponding devices (32, 34), and to said devices (32, 34). Distances (40, 42, 44) between the underwater vehicle (1) and a tunnel body (6) of the tunnel (4) surrounding the longitudinal axis (Z) of the underwater vehicle (1) are detected optically in various directions by way of a laser (46, 48, 50) and a camera (58, 60, 62) using laser triangulation.
摘要:
The invention relates to a device for displaying identified target parameters of targets (26, 28) which are located in a reconnaissance area (30), with a display (36). For this purpose, the display (36) has a plurality of regions, referred to below as display sub-regions (38, 40), and the reconnaissance area (30) has a plurality of regions, referred to below as reconnaissance sub-areas (32, 34). In addition, each reconnaissance sub-area (32, 34) is assigned a display sub-region (38, 40). The identified target parameters of a target (26, 28) comprise unambiguous target parameters (66) of the target (26, 28) which are assigned to a specific reconnaissance sub-area (32, 34), and ambiguous target parameters (68) of the target (26, 28) which are assigned to all of the reconnaissance sub-areas (32, 34). In addition, the device has selection means (70) for selecting the unambiguous or ambiguous target parameters (66, 68) of a target (26, 28) and display means (76) for displaying the selected target parameters (72). In this context, the display means (76) are designed to display selected unambiguous target parameters (66) of the target (26, 28) only in a display sub-region (38, 40) assigned to the reconnaissance sub-area (32, 34) of the unambiguous target parameters (66), or in such a way that they can be additionally differentiated therefrom in one or more further display sub-regions (38, 40). In addition, the display means (76) is designed to display selected ambiguous target parameters (68) of the target (26, 28) in all the display sub-regions (38, 40) which are assigned to the reconnaissance sub-areas (32, 34).
摘要:
The invention relates to a system (1) and a method (76) for recovering a submarine vehicle (2). The submarine vehicle (2) is pulled by a rope (50) and hauled by means of said rope (50) and a recovery ramp (12) from the body of water (6) on board a ship (8) or onto land. The system (1) comprises the recovery ramp (12) and a wave equalization ramp (24). The wave compensation ramp (24) can be rotated relative to the recovery ramp (12) about a swivel axis S and is supported by a floating body (36, 38). The watercraft (2) is picked up by means of the recovery ramp (12). The wave compensation ramp (24) is hauled together with the picked-up submarine vehicle (2) by means of the recovery ramp (12). The invention permits the recovery of a submarine vehicle (2), even in moderate or heavy seas, with less risk of damage to the submarine vehicle (2).
摘要:
The invention relates to a device 50 and a method 54 for operating an unmanned underwater vehicle 2, wherein the underwater vehicle 2 has determining means 22 which determine 58 a usability indicator. A use recommendation for the use of the underwater vehicle 2 in a future mission can be derived or is derived 66 from this usability indicator. The determination 58 of the usability indicator takes place as a function of at least one operating parameter of the underwater vehicle 2. A decision aid relating to the suitability of the underwater vehicle 2 for a respective purpose of use can be made available for an underwater vehicle 2, which can be used for different purposes by means of the invention. In addition, the invention relates to an underwater vehicle 2 which has at least the determining means 22 and/or storage means 20 for storing a usability indicator which is determined 58 by means of the device 50 according to the invention.