A method for indicating a weather threat to an aircraft is provided. The method includes inferring a weather threat to an aircraft and causing an image to be displayed on an aviation display in response to a determination by aircraft processing electronics that the inferred weather threat to the aircraft is greater than a measured weather threat to the aircraft.

A system that may be used to detect objects in front and behind of a barrier, such as a wall. The system includes a processor, a radar device, a thermal image device, and a display each being connected to the processor. The system detects objects based on reflected signals from the radar device and objects based on infrared light. The display shows at the same time objects detected by either the radar device or the thermal image device. A size of a displayed objects may be reduced based on the distance the object is from the system. The processor may be configured to discard objects detected by the radar device that are located in front of the barrier. The system may display objects located in front of the barrier detected by the thermal image device overlaid with objects located behind the barrier detected by the radar device.

An enhanced radar detector in one example displays a source direction of one more detected signals simultaneously with a frequency band of the detected signal. In another embodiment, a method detects a location of a false alert source to suppress alerts emanating from the location. A geographic location of a first mid-ship point of a detected radar signal in a vehicle traveling in a first direction are identified/recorded. The geographic location of a second mid-ship point of a detected signal is also identified/recorded in a vehicle traveling in a second different direction. The recorded geographic locations/directions of travel are uploaded to a host server, or evaluated within the radar detector, to identify a false source and mark a false source at an intersection of the first and second midlines. The marked false source location can be used in a detector and/or downloaded to multiple detectors via a social network.

In some examples, a radar device is configured to detect an object, where the radar device includes transceiver circuitry configured to transmit radar signals having a first polarization type towards the object, receive radar signals having the first polarization type reflected from the object, and receive radar signals having a second polarization type reflected from the object, the second polarization type being different than the first polarization type. The radar device also includes processing circuitry configured to determine a material category of the object based on the radar signals having the first polarization type reflected from the object and the radar signals having the second polarization type reflected from the object.

An exemplary computer implemented digital image processing method conveys probabilities of detecting terrestrial targets from an observation aircraft. Input data defining an observation aircraft route relative to the geographical map with lines of communications (LOC) disposed thereon are received and stored as well as input data associated an aircraft sensor's targeting capabilities and attributes related to the capability of targets to be detected. Percentages of time for line-of-sight visibility from the aircraft of segments of LOC segments are determined. Probability percentages that the sensor would detect a terrestrial target on the segments are determined. The segments are color-coded with visibility and sensor detection information. A visual representation of the map with the color-coded segments is provided to enhance the ability to select appropriate observation mission factors to achieve a successful observation mission.

This disclosure is directed to techniques, methods, devices, and systems for generating a bird and bat detection radar output using weather radar. In one example, a method includes generating, by a computing device that comprises one or more processors and is onboard a vehicle, a radar control output for an aircraft weather radar system to generate a radar transmission tuned to detect birds and bats. The method further includes receiving, by the computing device, radar data in response to the radar transmission. The method further includes determining, by the computing device, whether the radar data comprises data indicative of detected birds or bats. The method further includes generating, by the computing device, an output based at least in part on the data indicative of the detected birds or bats.

An echo image generating device may be provided, which includes a signal acquiring module, a sensitivity setting module, and a screen generating module. The signal acquiring module may acquire an echo signal from a target object around a ship. The sensitivity setting module may perform a first sensitivity setting for the echo signal in a first range, and a second sensitivity setting for the echo signal in a second range without including the first range, the second sensitivity setting being different from the first sensitivity setting. The screen generating module may generate an echo image of the first range based on the first sensitivity setting, and generate an echo image of the second range based on the second sensitivity setting.

An aircraft hazard warning system or method can be utilized to determine a location of turbulence, hail or other hazard for an aircraft. The aircraft hazard warning system can utilize processing electronics coupled to an antenna. The processing electronics can determine an inferred presence of a weather condition in response to lightning sensor data, radar reflectivity data, turbulence data, geographic location data, vertical structure analysis data, and/or temperature data. The system can include a display for showing the weather condition and its location.

An object is to enable measurement of position and velocity of a measurement object. A velocity measurement device includes a transmitting means, a receiving means, and a signal processing means. The transmitting means transmits a transmission signal by a transmitting antenna toward a measurement object. The receiving means receives a reflected wave from the measurement object with multiple receiving antennas and generates a reception signal for each of the receiving antennas. The signal processing means obtains a phase plane of the reflected wave with respect to an antenna plane of the multiple receiving antennas from a phase difference between the reception signals to specify an arrival direction of the reflected wave, obtains a distance to the measurement object from a propagation delay time of the reflected wave, and calculates a phase fluctuation of the reflected wave to calculate a velocity of the measurement object from the phase fluctuation.

A bicycle radar system including a camera is disclosed. The system may include a radar unit and a bicycle computing device that are in communication with one another. The radar unit may transmit radar signals, receive return signals (reflections), and process the returned radar signals to determine a location and velocity of one or more targets located in a sensor field behind a user's bicycle. The radar unit may also include an integrated camera to selectively provide images or video of an area behind the bicycle in the camera's field of view. The radar unit may analyze the returned radar signals and images and/or video to track the location of targets located behind the bicycle. The bicycle computing device or the radar unit may also selectively activate the camera based upon the satisfaction of particular conditions.