G01S7/24

ENHANCED DOPPLER RADAR SYSTEMS AND METHODS
20230184923 · 2023-06-15 ·

Techniques are disclosed for systems and methods to provide remote sensing imagery for mobile structures. A remote sensing imagery system includes a radar assembly mounted to a mobile structure and a coupled logic device. The radar assembly includes an orientation and position sensor (OPS) coupled to or within the radar assembly and configured to provide orientation and position data associated with the radar assembly. The logic device is configured to receive radar returns corresponding to a detected target from the radar assembly and orientation and/or position data corresponding to the radar returns from the OPS, determine a target radial speed corresponding to the detected target, and then generate remote sensor image data based on the remote sensor returns and the target radial speed. Subsequent user input and/or the sensor data may be used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

SYSTEM AND METHOD FOR MONITORING A PROJECTILE

A system for monitoring at least one projectile during flight. The system includes a radar apparatus, a trigger, and a processor. The radar apparatus transmits a radar signal that includes a base radar frequency signal with a frequency shift. The radar signal has a signal profile in a direction of a chosen target and reflects off the projectile(s) traveling through the signal profile toward the target. The radar apparatus receives at least one reflected signal from the projectile(s). The trigger is operably coupled to the radar apparatus to automatically initiate operation of the radar apparatus. The processor collects data from the radar apparatus and calculates velocity of the projectile(s) based thereon. The present disclosure further provides a method of monitoring the projectile(s) during flight with the system. The present disclosure further provides a chronograph system with a housing, aiming device with a peep sight, and a trigger.

SYSTEM AND METHOD FOR MONITORING A PROJECTILE

A system for monitoring at least one projectile during flight. The system includes a radar apparatus, a trigger, and a processor. The radar apparatus transmits a radar signal that includes a base radar frequency signal with a frequency shift. The radar signal has a signal profile in a direction of a chosen target and reflects off the projectile(s) traveling through the signal profile toward the target. The radar apparatus receives at least one reflected signal from the projectile(s). The trigger is operably coupled to the radar apparatus to automatically initiate operation of the radar apparatus. The processor collects data from the radar apparatus and calculates velocity of the projectile(s) based thereon. The present disclosure further provides a method of monitoring the projectile(s) during flight with the system. The present disclosure further provides a chronograph system with a housing, aiming device with a peep sight, and a trigger.

Efficient retrieval of aviation data and weather over low bandwidth links
09810770 · 2017-11-07 · ·

A method of selectively displaying an image representative of a weather condition in relation to an aircraft includes selecting, on a display screen, a display area to display weather data based on the location of the aircraft, selecting a weather condition to display from among a plurality of weather conditions, determining if any weather conditions are available to be displayed outside the selected display area and if the weather conditions should be displayed outside the selected display area based on the location of the aircraft and the severity of the non-selected weather conditions, receiving, from a weather data source, weather data representative of the selected weather condition with respect to the selected display area, and receiving weather data representative of weather conditions that should be displayed outside the selected display area, the weather data including location data for the weather conditions, and displaying the image representative of the selected weather condition within the selected display area and the weather conditions that should be displayed outside the selected display area, the image based on the received weather data.

RF IN-WALL IMAGE REGISTRATION USING POSITION INDICATING MARKERS

A radio frequency (RF) imaging device comprises an RF sensor assembly, a position sensor, a processor, and a memory. The RF sensor assembly receives an RF signal for capturing an RF image of a portion of a space behind a surface. The position sensor receives a plurality of signals respectively emitted by a plurality of position markers at known positions relative to the surface. The processor determines a plurality of angles at which the plurality of signals respectively arrive at the position sensor and determines, based on the plurality of angles and the known positions of the plurality of position markers, a position of the RF imaging device relative to the surface. The memory stores the RF image in association with the determined position of the RF imaging device. A time-of-flight or triangulation of signal data may be used for position determination.

MANIPULATION OF 3-D RF IMAGERY AND ON-WALL MARKING OF DETECTED STRUCTURE
20170315227 · 2017-11-02 ·

A radio frequency (RF) imaging device comprising a display receives a three-dimensional (3D) image that is a superposition of two or more images having different image types including at least a 3D RF image of a space disposed behind a surface. A plurality of input control devices receive a user input for manipulating the display of the 3D image. Alternatively or additionally, the radio frequency (RF) imaging device may receive a three-dimensional (3D) image that is a weighted combination of a plurality of images including a 3D RF image of a space disposed behind a surface, an infrared (IR) image of the surface, and a visible light image of the surface. A user input may specify changes to the weighted combination. In another embodiment, the RF imaging device may include an output device that produces a physical output indicating a detected type of material of an object in the space.

RF IN-WALL IMAGE VISUALIZATION

A radio frequency (RF) imaging device comprises a position sensor, an optical sensor, a processor, and an output. The position sensor determines a position of the RF imaging device relative to a surface. The optical sensor captures optical image data representing an optical image of an area of the surface. The optical image data is associated with position data representing a position relative to the surface derived from the determined position of the RF imaging device. The derived position data corresponds to the area of the surface imaged by the optical sensor. The processor produces a composite image in which one or more portions of the optical image data are simultaneously viewable with RF image data representing an RF image of a space behind the surface at the same position as the optical image data. The output displays the composite image. The output may be a projector.

Method of determining position of vehicle and vehicle using the same

Provided is an autonomous vehicle including a storage configured to store a map including two-dimensionally represented road surface information and three-dimensionally represented structure information, a camera configured to obtain a two-dimensional (2D) image of a road surface in a vicinity of the vehicle, a light detection and ranging (LiDAR) unit configured to obtain three-dimensional (3D) spatial information regarding structures in a vicinity of the vehicle, and a controller comprising processing circuitry configured to determine at least one of the camera or the LiDAR unit as a position sensor, based on whether it is possible to obtain information regarding the road surface and/or the structures in the vicinity of the vehicle, to identify a position of the vehicle on the map corresponding to a current position of the vehicle using the position sensor, and performing autonomous driving based on the identified position on the map.

METHOD OF SYNTHETIC REPRESENTATION OF ELEMENTS OF INTEREST IN A VIEWING SYSTEM FOR AIRCRAFT
20170287224 · 2017-10-05 ·

A method of synthetic representation of elements of interest in a viewing system for aircraft, the viewing system comprises location sensors, a cartographic database and a database of elements of interest, an image sensor, a unit for processing images and a unit for generating three-dimensional digital images representative of the terrain overflown and a viewing device, wherein, when the terrain overflown comprises an element of interest, the method of synthetic representation comprises: a first step of searching for and detecting the element of interest in each image of a sequence of images, and; a second step of generating three-dimensional digital images representative of the terrain overflown, the element of interest represented according to a first representation if it has not been detected in any of the images of the sequence of images and according to a second representation if it is detected.

METHOD AND SYSTEM FOR PERSONAL AREA RADAR
20170242097 · 2017-08-24 ·

A personal area radar is provided to permit a user to be aware of their surroundings. This may be in 360 degrees or any other suitable coverage area and angle. The personal area radar can show objects to the user through fog, smoke, precipitation, darkness and with full 360 degree field of view capability, significantly improving the user's overall situational awareness. They may also be used to view things that are behind solid objects such as in or behind walls or underground. These systems may be highly integrated phased array radar systems mounted on a helmet. They may use small, high frequency radars able to detect solid objects (and/or semi-solid objects) such as people, improvised explosive devices (IED), or other solid objects. These methods and systems may provide the user with 360 degrees view and awareness of objects regardless of external conditions such as weather, darkness or other obstructions.