A system for monitoring a physical change of a marine structure includes a complex optical measuring instrument configured to detect a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating.

A system for monitoring a maritime environment comprises a plurality of radio detection and ranging devices configured to perform a synchronous detection of a maritime environment object, to transmit a plurality of sensor signals respectively relating to a location of the maritime environment object over a communication network, and to receive a synchronization signal. Each radio detection and ranging device is configured to synchronize its operation according to the synchronization signal. A synchronization source is configured to generate the synchronization signal for synchronizing operations of radio detection and ranging devices, and to provide the synchronization signal over the communication network to the radio detection and ranging devices. A processing device is configured to receive the plurality of sensor signals from the plurality of radio detection and ranging devices, and to determine the location of the object in the maritime environment upon the basis of the plurality of sensor signals.

The technology relates to determining general weather conditions affecting the roadway around a vehicle, and how such conditions may impact driving and route planning for the vehicle when operating in an autonomous mode. For instance, the on-board sensor system may detect whether the road is generally icy as opposed to a small ice patch on a specific portion of the road surface. The system may also evaluate specific driving actions taken by the vehicle and/or other nearby vehicles. Based on such information, the vehicle's control system is able to use the resultant information to select an appropriate braking level or braking strategy. As a result, the system can detect and respond to different levels of adverse weather conditions. The on-board computer system may share road condition information with nearby vehicles and with remote assistance, so that it may be employed with broader fleet planning operations.

In some examples, a system includes a radar device configured to transmit first X-band radar signals in a weather mode and receive first return X-band radar signals in the weather mode. In some examples, the radar device is further configured to transmit second X-band radar signals in a landing mode and receive second return X-band radar signals in the landing mode. In some examples, the system also includes processing circuitry configured to detect, in the weather mode, weather formations based on the first return X-band radar signals. In some examples, the processing circuitry is further configured to determine, in the landing mode, a position of a transponder based on the second return X-band radar signals received by the radar device and determine a location of a runway based on the position of the transponder.

A boat stabilization system includes a first radar unit constructed and arranged to be associated with a port side of a boat so as to obtain wave data of a port side wave prior to the port side wave contacting the port side of the boat. A second radar unit is constructed and arranged to be associated with a starboard side of the boat so as to obtain wave data of a starboard side wave prior to the starboard side wave contacting the starboard side of the boat. A control unit is connected with each of the first and second radar units and constructed and arranged to develop, based on the wave data of the port side wave and the starboard side wave, a three-dimensional wave map. The control unit is constructed and arranged to control a boat stabilizing device based on the wave map.

A system and method for sensing precipitation conditions near a vehicle. The precipitation radar system is mounted on the vehicle and includes a transmitter, a receiver, and an electronic control unit. The method transmits radar signals from the transmitter; receives reflected radar signals at the receiver; determines response information from the reflected radar signals for a region of interest; and uses the response information to determine precipitation conditions for the region of interest. The region of interest is defined, at least in part, by a range and the response information includes phase data, amplitude data, or both phase and amplitude data based on the reflected radar signals. The method and system may then use the precipitation conditions to control other responsive vehicle actions, such as activating a windshield heater, a windshield defroster, a windshield wiper or a combination thereof.

This disclosure relates to systems and methods for measuring wave fields of a body of water. A system can include a radiation source and an antenna that can cooperate with the radiation source to transmit a radio frequency (RF) signal to a wave field having one or more waves. The antenna can receive backscattered signals from the wave field. The system can include a local oscillator and a processor. The local oscillator downconverts the backscattered signals into baseband signals and the processor can process the baseband signals to determine a relative velocity of each of the waves of the wave field. The processor can further be programmed to identify an observed portion of the backscattered signals as bad data and remove the bad data from further processing.

A system assists the driving of a ship and is configured to estimate the structural loads of the ship due to the direct wave excitation, and structural loads of the ship due to the whipping effect caused by the wave slamming. The system includes at least one reference sensor adapted to provide an indication of a motion or stress magnitude at a predetermined point of the ship structure, and is further configured to calculate an estimate of the magnitude at the predetermined point in the ship structure, compare the indication of magnitude with the estimate of the magnitude so as to determine an offset value, and correct the estimates of the structural loads and/or the estimate of the magnitude on the basis of the offset value.

A system for monitoring a physical change of a marine structure includes a complex optical measuring instrument configured to detect a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating.

A radar apparatus (1) for creating a radar image based on reflection waves caused by radio waves transmitted from an antenna, is provided. The radar apparatus (1) includes a receiver (3) configured to receive the reflection waves of the transmitted radio waves, as reception signals, a suppression processing module (9) configured to suppress levels of reflection signals among the reception signals, each of the reflection signals caused by precipitation, a precipitation reflection visualizing data creating module (15) configured to create data indicating, as a precipitation reflection visualized area (97), an area corresponding to the signals of which levels are suppressed to below a threshold by the suppression processing module (9), and a display image data creating module (16) configured to create display image data indicating on the radar image, the precipitation reflection visualized area (97) created by the precipitation reflection visualizing data creating module (15).