The application relates to bi-static or multi-static holographic navigation systems, including methods of localizing an emitter or receiver with high precision relative to the sea floor. The system and methods can be used with a fully active sonar or radar system using well synchronized transmitters and receivers. The system and methods can be used with a passive sonar or radar system localizing a transmitter or a receiver based on poorly timed received signals.

A lateral distance sensor diagnosis apparatus cooperating with a lateral distance sensor in a vehicle includes a travel enabled distance acquisition section and a diagnosis test section. The travel enabled distance acquisition section determines whether the vehicle is estimated to have contact with an object detected by the lateral distance sensor, based on a distance detected by the lateral distance sensor and a present steering angle. When determining that the vehicle is estimated to have contact with the detected object, the travel enabled distance acquisition section acquires a travel enabled distance based on a distance detected by the lateral distance sensor. The diagnosis test section determines that the lateral distance sensor fails to operate normally when a movement distance becomes greater than the travel enabled distance under state where the steering angle is an angle causing the vehicle to have contact with an object detected by the lateral distance sensor.

A survey system and method to improve one or more of survey quality, efficiency, and utility for example by utilizing a vessel mounted MBES and a selected survey plan to check sound speed(s) via eliciting echoes from reflectors in colocated groups of reflectors using multi-perspective ensonification.

A fastening device is configured to be used for fastening an object to a target device. The fastening device includes a holder part configured to hold the object, a fastening part configured to be bonded to the target device, a contact part allowing the fastening part to be located between the contact part and the holder part, and a connecting part for connecting the contact part with the fastening part while allowing the protruding length to be variable. The contact part protrudes toward the target device more than the fastening part by a protruding length, the contact part contacting the target device before the fastening part contacts the target device when being fastened to the target device. This fastening device improves workability.

A method is described for spatial modelling of an interior of a vehicle. The method includes transmitting a wireless signal, from each of multiple transmitters, each transmitter having a known location in the vehicle, receiving, by multiple receivers, multiple reflection signals having been reflected in the interior of the vehicle, each receiver having a known location in the vehicle. The method also includes, for the received reflection signals, determining a source data set by determining multipath propagation components, Doppler shifts, phase shifts and time differences of the received reflection signals, and determining a spatial model of at least a portion of the vehicle interior by applying a computer vision algorithm on the source data set. A system is also described for performing the method.

The invention relates to a method for producing an ultrasound sensor (20) for a motor vehicle, in which method, for the ultrasound sensor (20), a diaphragm (23) for emitting ultrasound signals in an emitting direction (21) and a sensor housing (24) are provided, in and/or on which sensor housing the diaphragm (23) is fastened, wherein the sensor housing (24) has a front side (25), which points in the emitting direction (21) of the diaphragm (23), and a rear side (26), which points in a rearward direction (27) which is opposite to the emitting direction (21), and wherein the sensor housing (24) is, on the rear side (26), formed with a rear-side installation opening (29) for components of the ultrasound sensor (20), wherein the diaphragm (23) is inserted into the sensor housing (24) through the rear-side installation opening (29) in the emitting direction (21), and said diaphragm is placed, through an interior space (30) of the sensor housing (24), into an installed position at the front side (25) of the sensor housing (24), and is fastened in the installed position.

A system includes a computer including a processor and a memory, the memory storing instructions executable by the processor to actuate a brake valve to drain a brake cylinder and then actuate the brake valve to isolate the brake cylinder and hold a brake pedal in a retracted position.

A method for efficiently achieving full-matrix ultrasonic data capture which includes the steps of providing an ultrasound array apparatus, the ultrasound array apparatus further comprising a probe, collecting data over a plurality of inspection locations, generating a plurality of data matrices, each of the data matrices reflecting data collected at the locations, and collecting, initially, a subset of a quantity of data needed for reconstruction of each of the inspection locations. In the method, as the probe moves from collection location to collection location, a data matrix at a prior collection location is gradually filled in as the probe moves to subsequent collection locations. In certain embodiments physical scanning of a probe with few elements is replaced by electronically scanning using an array with many elements.

Methods and systems for storing and processing a plurality of fractions of imaging data thereby minimizing the amount of cache memory necessary while controlling data loss and the resulting image quality.

Remote object detection in an automotive vehicle includes an ultrasonic sensor for emitting ultrasonic bursts from an ultrasonic transducer at a standard rate. At least one object is tracked which reflects the ultrasonic bursts to the sensor. The transducer is adaptively set to emit ultrasonic bursts at a reduced rate which is less than the standard rate based on a result of the object tracking. In one embodiment, the ultrasonic bursts are set at the reduced rate when the tracked object is maintaining a stable relative position. The stable relative position may be comprised of the tracked object having a relative velocity less than a threshold. In another embodiment, extrinsic ultrasonic bursts originating from the tracked object and subsequent echoes between the automotive vehicle and the tracked object can be used by the vehicle to monitor the tracked object while emission of bursts from the vehicle are switched off.