Raytheon

About: Raytheon is a company organization based out in Waltham, Massachusetts, United States. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 15290 authors who have published 18973 publications receiving 300052 citations.

Overlay information over video

Abstract: In accordance with a particular embodiment of the invention, a method for geotagging an image includes receiving an image of a real-world scene. Location information may be received corresponding to the image. The location information may identify the location of the real-world scene. The image may be synchronized with the location information corresponding to the image such that a two-dimensional point on the image corresponds to a three-dimensional location in the real world at the real-world scene. A geotag may be received. The geotag may tag the image at the image at the two-dimensional point and provide additional information concerning the real-world scene. The geotag and the three-dimensional location in the real world at the real-world scene may be stored in a geotag database.

A review of selected thermal management solutions for military electronic systems

Abstract: Thermal management of electronics is vital to the successful design, manufacture, and tactical operation of a variety of military electronic systems. Designs employ all modes of heat transfer including: conduction, natural and forced convection, aerodynamic heating, radiation, and two-phase heat transfer. A variety of heat sinks and heat exchange devices are employed, including the use of cold plates, electronic chassis coldwalls, compact heat exchangers, air-cycle and vapor-cycle refrigeration systems, phase change materials, thermoelectric devices, and heat pipes. This paper describes several military electronic systems on a variety of platforms and discusses the thermal management issues involved in the design of the thermal control systems. Specific examples are employed in the paper to emphasize the variety of thermal management problems encountered and the solution techniques employed.

System and method for detection of image edges using a polar algorithm process

Abstract: An edge detection system (100) and method (500) implement a recursive polar algorithm process to generate an edge image from an input image. The edge detection system may include a polar filter (106) to recursively perform low-pass filtering along edge contours of a gradient pixel grid and generate a gradient image output. An edge thinner (108) may be included to find gradient field peaks along a direction of gradient vectors of the gradient image output and generate thinned gradient pixels. An edge path segmenter (110) may group the thinned gradient pixels into edge segments, and a segment classifier (112) may determine whether the edge segments are edge paths or clutter. The edge detection system and method may improve automated image processing in medical diagnostics, reconnaissance, missile guidance, security systems, access control systems (e.g., face recognition), navigation, geographic mapping, manufacturing quality inspection, robot vision, and search and rescue.

Multifunction wide-band array design

Abstract: High-performance active arrays operating over C, X, and Ku-band have been demonstrated using newly developed designs of wide-band radiating elements and wide-band monolithic microwave integrated circuits (MMICs). The advanced shared aperture program (ASAP) explored the development of wide-band multifunction arrays capable of simultaneous and time interleaved radar, electronic warfare, and communications functions. Two iterations of radiating element and transmit/receive (T/R) module design were completed during this program. The radiating aperture design approach, overall array concepts, and current design technology and performance are summarized.

Example applications of the MISR INteractive eXplorer (MINX) software tool to wildfire smoke plume analyses

Abstract: The Multi-angle Imaging SpectroRadiometer (MISR) instrument aboard Terra acquires imagery at 275-m resolution at nine angles ranging from 0° to 70° off-nadir. This multi-angle capability facilitates the stereoscopic retrieval of smoke heights associated with near-source plumes. A new visualization and analysis program called MISR INteractive eXplorer (MINX) takes advantage of wind-direction information inherent in smoke plumes from active fires to determine plume heights and wind speeds at higher resolution and with greater accuracy than provided by the standard, operational MISR product. Among the software tool's many features are several designed for in-depth study of plumes, including animations of the nine MISR camera images that provide a visual 3-D perspective, and interactive digitization of plumes in order to automatically retrieve heights and winds. Aerosol properties from MISR, and fire power based on infrared brightness temperatures from MODIS (also on Terra) are archived along with the retrieved height and wind data. MINX retrievals have sufficient spatial detail to provide valuable input to studies of plume dynamics as well as large-scale climatological studies. Current efforts are focusing on fires in North America, but application to other areas of the world is also envisioned. Case study examples will be presented to illustrate MINX capabilities.