BAE SYSTEMS plc Group IP Department

Methods, apparatus and computer programs for configuring a thermodynamic system are disclosed. In an embodiment, a computer-implemented method for configuring a thermodynamic system comprises obtaining information indicative of first and second temperature values and first and second entropy values respectively defining initial and target states of a fluid. One or more configurations of the thermodynamic system are identified based on component process information indicative of an effect of the component on the temperature and entropy of the fluid, and based on a cost function. The cost function is related to properties of each component, for example, its mass or size. Each configuration that is identified comprises a combination of components capable of converting the fluid from the initial state to the target state.

The application relates to a method of transmitting high frame rate video using a standard interface video format by packing multiple frames of the high frame rate video into rolling buffer to obtain an output frame.

A system and computer-implemented method of transferring data from an uncrewed vehicle comprises obtaining (202), at the uncrewed vehicle, data to be transferred, and compressing (204) the obtained data using a lossy data compression technique to produce compressed data. The compressed data is transferred (206) over a wireless communications link to a remote device, which performs (208) resolution enhancement on the transferred compressed data using a trained machine learning model to produce enhanced data.

A method of transmitting an image represented in a raster graphics format from a graphics processor to an image display apparatus that displays images on a display device using binary pixels is defined. The method comprises converting, at a graphics processor, the raster graphics format representation of the image into a binary pixel representation of the image, encoding, at the graphics processor, the binary pixel representation into a raster frame and transmitting the raster frame from the graphics processor to an image display apparatus using a video interface that uses the raster graphics format.

Arrangements are described for obtaining, at a first uncrewed vehicle, local RF data transmitted by one or more RF emitters; receiving, at the first uncrewed vehicle, remote data from each of one or more neighbouring uncrewed vehicles, wherein the first uncrewed vehicle and the one or more neighbouring uncrewed vehicles form at least a part of a plurality of uncrewed vehicles organised as a graph of nodes and edges; generating aggregated RF data for the first uncrewed vehicle based on the local RF data and the remote data in accordance with a message aggregation scheme; processing the aggregated RF data at the first uncrewed vehicle using an RF emitter profiling model in order to distinguish between different RF emitters; taking one or more decisions based, at least in part, on the processed aggregated RF data; and communicating between the first uncrewed vehicle and at least one other uncrewed vehicle of the plurality.

There is described an acoustic black hole 'ABH' comprising a tapered body comprising an upstream end and a downstream end, the tapered body tapering from a first characteristic towards the upstream end to a second characteristic towards the downstream end, an actuator configured to apply an actuating force to the tapered body, at least one stress sensor configured to generate a signal corresponding to a stress on the tapered body, and a controller configured to control the actuator to apply the actuating force to a part of the tapered body, based on the signal generated by the at least one stress sensor.

Method, uncrewed vehicles and systems are described comprising: organising a plurality of uncrewed vehicles as a graph of nodes and edges; obtaining local observation data at one or more of said plurality of uncrewed vehicles from one or more sensors of the respective uncrewed vehicles; locally generating aggregated data at each uncrewed vehicle, based on the local observation data obtained at the respective uncrewed vehicle and, if available, remote data received from one or more neighbouring nodes; communicating information between nodes for use as said remote data; and taking one or more decisions at one or more of said nodes based, at least in part, on the aggregated data generated at the respective node.

Method, platforms and system are described comprising: organising a plurality of platforms as a graph of nodes and edges; obtaining local object data at one or more of said plurality of platforms; communicating information between platforms; locally generating, at one or more of said platforms, aggregated object data for the respective platform based on the respective local object data and the information communicated between platforms; locally generating, at one or more of said platforms, target information for one or more targets based, at least in part, on the respective aggregated object data; and taking one or more decisions at one or more of said platforms based, at least in part, on the target information generated at the respective platform.

Arrangements are described comprising: organising a plurality of uncrewed vehicles as a graph of nodes and edges; obtaining local radar data at one or more of said plurality of uncrewed vehicles from one or more sensors at the respective uncrewed vehicle; locally generating, at one or more of said uncrewed vehicles, aggregated radar data for the respective uncrewed vehicle, in accordance with a message aggregation scheme, based on the local radar data obtained at the respective uncrewed vehicle and, at least some of the information communicated between neighbouring uncrewed vehicles; communicating information between neighbouring uncrewed vehicles; and taking action at one or more uncrewed vehicle of the plurality based, at least in part, on the aggregated radar data for the respective uncrewed vehicle.

A driving band (100) comprising a shape memory alloy material. The shape memory alloy may be configured to expand from a first diameter (D1) to a second diameter (D2) when raised from a first temperature (T1) to a second temperature (T2). The shape memory alloy is configured to contract from the second diameter (D2) to the first diameter (D1) when lowered from the second temperature (T2) to the first temperature (T1).