Search results
Results From The WOW.Com Content Network
Passive calibration satellites are objects of known shape and size. [1] Examples include the Lincoln Calibration Sphere 1 developed by the MIT Lincoln Laboratory.These are generally solid or hollow spheres, since that shape will have the same cross-section regardless of viewing angle, though later passive satellites used wire grid designs. [2]
LCS-1 has been used for radar calibration since its launch. It was built by Rohr. Corp. for the MIT Lincoln Laboratory. [4] [3] LCS-1 is a hollow sphere 1.12 m (3 ft 8 in) in diameter with a wall thickness of 3.2 mm (0.13 in). [3] The sphere was constructed from two hemispheres, made by spinning sheet metal over a mold.
The combination R-G-B = HH-HV-VV combines radar images of waves sent and received horizontally (HH), sent horizontally and received vertically (HV) and sent and received vertically (VV). The calibration of such instruments is done by imaging objects (calibration targets) whose radar brightness is known.
ODERACS-2 (Orbital Debris Radar Calibration Sphere 2) was a series of six spheres deployed from the shuttle mission STS-63, ODERACS-2A through -2.The purpose of the Orbital Debris Radar Calibration Sphere experiment was to calibrate the radars and telescopes used for orbital debris measurements by putting passive objects of known size and shape into orbit.
Pocket Radar was developed and manufactured by Pocket Radar, Inc. of Santa Rosa, California. The company’s founders, Chris Stewart, Steve Goody, and Grant Moulton were developers in wireless and communication technology companies Hewlett Packard, Cerent Corporation, Caymas Systems, Next Level Communications, Agilent Technologies, and Cisco Systems, prior to forming Pocket Radar, Inc.
Getting a good night's sleep can be a little more challenging amid the hype of the holidays. With changes in routine, diet and potentially time zones, quality sleep could be difficult to come by ...
Aero-13 Fire Control System. The Aero 13 FCR designed for Douglas F4D Skyray is the origin of AN/APQ-120, and it established the configuration of the airborne FCR not only for the radar families of AN/APQ-120, but also a standard for all other airborne radars to follow: Aero 13 FCR was designed as an integrated cylindrical module that could be plugged into the nose of an aircraft, instead of a ...
(Reuters) -The Louisiana Department of Health said on Friday it has detected the first presumptive positive human case of H5N1 bird flu infection in the U.S. state.