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Conical scanning concept. The radar beam is rotated in a small circle around the "boresight" axis, which is pointed at the target.
Conical scanning is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at a target. Conical scanning is similar in concept to the earlier lobe switching concept used on some of the earliest radars, and many examples of lobe switching sets were modified in the field to conical scanning during World War II, notably the German Würzburg radar. Antenna guidance can be made entirely automatic, as in the American SCR-584. Potential failure modes and susceptibility to deception jamming led to the replacement of conical scan systems with monopulse radar sets. They are still used by the Deep Space Network for maintaining communications links to space probes.[1] The spin-stabilized Pioneer 10 and Pioneer 11 probes used onboard conical scanning maneuvers to track Earth in its orbit.[2]
^Gawronski, Wodek; Craparo, Emily (December 2002), "Antenna Scanning Techniques for Estimation of Spacecraft Position" (PDF), IEEE Antennas and Propagation Magazine, 44 (6): 38–45, Bibcode:2002IAPM...44...38G, doi:10.1109/map.2002.1167263, ISSN 1045-9243
^"Weebau Spaceflight Encyclopedia". 9 November 2010. Retrieved 11 January 2012.
Conicalscanning is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at...
deception jamming is an electronic warfare technique used against conicalscanning radar systems. It generates a false signal that fools the radar into...
from a single signal pulse. Monopulse radar avoids problems seen in conicalscanning radar systems, which can be confused by rapid changes in signal strength...
cone-shaped area. The traditional solution to this problem is to use conicalscanning. In this system, the receiver is connected not to a single receiver...
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scan multiple directions, in which case it is known as lidar scanning or 3D laser scanning, a special combination of 3-D scanning and laser scanning....
switching, or more commonly by the second half of the war, conicalscanning. Conicalscanning works by splitting the single radar beam in two, and comparing...
Swedish Flygvapnet Saab Viggens. Skyflash replaced the original Raytheon conicalscanning seeker with a Marconi inverse monopulse seeker that worked with the...
Secondary Scan: A scanning technique where the antenna feed is moved to produce a scanning beam, examples include conicalscan, unidirectional sector scan, lobe...
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attitude. Information for the orientation is provided by performing conicalscanning maneuvers to track Earth in its orbit, a star sensor able to reference...
facing the parabolic reflector. The system is almost always found in conicalscanning systems. It has the advantage of being very robust mechanically, with...
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also known as a conical flask (British English) or a titration flask, is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical...
concept was used only briefly, and was almost completely replaced by conicalscanning systems by the end of World War II. The concept is also infrequently...
pair three controlled the attitude. The attitude pair were used in conicalscanning maneuvers to track Earth in its orbit. Orientation information was...
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reactive energy is taken into account through the susceptance. Scanning arrays achieve scanning in two dimensions by creating a one-dimensional phased array...
Pillai designed and developed the Cassegrain Antenna and high-power conicalscanning feed system for the tracking radar for ISRO's first satellite launch...
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