A method providing an estimation of a shooting range with high accuracy by a miss distance estimation and a weapon caliber classification following detection of shooting of firearms with supersonic bullets, and by using novel equations constructed from field shooting data for each caliber in order to ensure a security of a patrol station, a border, troops, a society, a vehicle and a convoy is provided.

A method providing an estimation of a shooting range with high accuracy by a miss distance estimation and a weapon caliber classification following detection of shooting of firearms with supersonic bullets, and by using novel equations constructed from field shooting data for each caliber in order to ensure a security of a patrol station, a border, troops, a society, a vehicle and a convoy is provided.

A method of arranging a plurality of devices whose arrangement is specified by an arrangement specifying system. The arrangement specifying system specifies a correspondence of an arrangement of the devices on a drawing based on information about a distance of any two of the devices and drawing information indicating the arrangement of the devices. The method of arranging the plurality of devices includes arranging the devices such that there is one or both of no symmetric axis and no symmetric point in the arrangement of the devices.

An apparatus and a method for reducing collision risks between an entity and at least an obstacle, wherein the apparatus includes a transmitter adapted to emit a first beacon signal apt to avoid a collision, a receiver adapted to receive at least a second beacon signal that can be emitted by another apparatus which could dangerously approach to the apparatus, a processor configured for detecting at least the second beacon signal received through the receiver, detecting at least a property of at least the second beacon signal, determining, on the basis of the at least one property of the second beacon signal, at least a property of the first beacon signal, and emitting the first beacon signal through the transmitter in order to reduce collision risks.

An apparatus and a method for reducing collision risks between an entity and at least an obstacle, wherein the apparatus includes a transmitter adapted to emit a first beacon signal apt to avoid a collision, a receiver adapted to receive at least a second beacon signal that can be emitted by another apparatus which could dangerously approach to the apparatus, a processor configured for detecting at least the second beacon signal received through the receiver, detecting at least a property of at least the second beacon signal, determining, on the basis of the at least one property of the second beacon signal, at least a property of the first beacon signal, and emitting the first beacon signal through the transmitter in order to reduce collision risks.

Methods and systems for correcting distortions of audio transmissions are provided. In one embodiment, a method is provided that includes receiving an audio transmission that includes symbols. A first portion of the audio transmission including a first subset of the symbols may be identified and compared to an expected sequence having expected symbols. One or more differences may be determined between the first subset of the symbols and the expected symbols and a movement speed between a transmitter and a receiver of the audio transmission may be determined based on the differences. A second portion of the audio transmission may be identified including a second subset of the symbols in the second subset of the symbols may be corrected based on the movement speed between the transmitter and the receiver.

In an example, a method is described. The method includes causing one or more sensors arranged on an aircraft to acquire, over a window of time, first data associated with a first object that is within an environment of the aircraft, where the one or more sensors include one or more of a light detection and ranging (LIDAR) sensor, a radar sensor, or a camera, causing an array of microphones arranged on the aircraft to acquire, over approximately the same window of time as the first data is acquired, first acoustic data associated with the first object, and training a machine learning model by using the first acoustic data as an input value to the machine learning model and by using an azimuth, a range, an elevation, and a type of the first object identified from the first data as ground truth output labels for the machine learning model.

A positioning method includes: obtaining traffic control information indicative of transmission of a traffic control indication granting permission for vehicle motion, or permission for pedestrian motion, or a combination thereof and determining, based on the traffic control information, position-related information including a location of a user equipment (UE), a heading of the UE, or a combination thereof.

Systems and methods directed to determining the distance between two devices are disclosed. The systems and methods utilize a Bluetooth connection between a first device, such as a smartphone with an acoustic transducer, and a second device, such as an earbud with an embedded microphone, and the audio capturing capabilities of the second device to determine a distance between the two devices. The first device plays audio via the acoustic transducer. This audio is captured by a microphone of the second device. The second device transmits data including the captured audio back to the first device via the Bluetooth connection. The first device calculates a time delay from the playing of the audio to the reception of the data over the Bluetooth connection. The first device then calculates the distance based on the time delay, the latency constant, and the speed of sound.

Systems and methods directed to determining the distance between two devices are disclosed. The systems and methods utilize a Bluetooth connection between a first device, such as a smartphone with an acoustic transducer, and a second device, such as an earbud with an embedded microphone, and the audio capturing capabilities of the second device to determine a distance between the two devices. The first device plays audio via the acoustic transducer. This audio is captured by a microphone of the second device. The second device transmits data including the captured audio back to the first device via the Bluetooth connection. The first device calculates a time delay from the playing of the audio to the reception of the data over the Bluetooth connection. The first device then calculates the distance based on the time delay, the latency constant, and the speed of sound.