1
Wolfson Gerald, Fehr Eric R: Combined head-up multisensor display. Hughes Aircraft Company, MacAllister Jr W H, Adam Walter J, May 20, 1975: US3885095 (66 worldwide citation)

An aircraft cockpit display system which uses a single cathode ray tube or other image generating device to provide both a head-up display, in which a collimated pattern is superimposed on the pilot's field of view through the wind shield, and a multisensor display in which a radar picture or the li ...


2
Heard James L, Hoffman William C, Opittek Eugene W: Digital scan converter. Hughes Aircraft Company, Haskell James K, Adam Walter J, May 7, 1974: US3810174 (58 worldwide citation)

A digital system is disclosed for conversion of data rates inherent in various scanning patterns to different rates for display. A buffer memory is employed to accumulate blocks of data pertaining to successive scanning lines in a rectilinear or polar coordinate scanning pattern. The data is transfe ...


3
Close Donald H: Extended-field holographic lens arrays. Hughes Aircraft Company, MacAllister W H, Adam Walter J, April 30, 1974: US3807829 (40 worldwide citation)

Multiple holographic lenses are provided in the same structure by recording in a spatial array the interference patterns of coherent reference and object beams from pairs of point sources to provide an increased field of view with high resolution. A method for constructing, evaluating and correcting ...


4
Evans Norol T: Moving target indicator system. Hughes Aircraft Company, Adam Walter J, MacAllister Jr W H, January 14, 1975: US3860924 (24 worldwide citation)

An improved moving target indicator system operable with antenna side lobe blanking, that substantially eliminates false target reports at the output of the moving target indicator so as to overcome a problem associated with radar systems using moving target indicator and side lobe blanking arrangem ...


5
Villalobos Luis F, Harano Allen A, Breinlinger Richard H: System for generating orthogonal control signals to produce curvilinear motion. Hughes Aircraft Company, MacAllister W H, Adam Walter J, May 7, 1974: US3809868 (23 worldwide citation)

A system for producing orthogonal control signals for display or tool control purposes. The orthogonal control signals are generated in response to received point and slope data for each of a plurality of curve sections. The generated control signals produce curve strokes which are a variable geomet ...


6
Bell William H: Along track terrain avoidance contouring system. Hughes Aircraft Company, MacAllister Jr W H, Adam Walter J, May 7, 1974: US3810175 (20 worldwide citation)

A terrain clearance or following system that provides terrain clearance information in depth from large elevation depression angles out along the projected aircraft ground track to the horizon. The aircraft projected ground track is displayed on a cathode ray tube by a heavy along track line and the ...


7
Parke Donald P, Priester Willis M, Scheidler Stuart P, Goldberg Gerald M: Automatic prf selection to optimize range and doppler visibility in radar tracking. Hughes Aircraft Company, MacAllister W H, Adam Walter J, December 31, 1974: US3858208 (19 worldwide citation)

A radar system is disclosed which uses an established track predicted range, R.sub.p, and radial velocity, R.sub.p, of a target to select a frequency, F, and PRF for optimum range and doppler visibility in tracking. The procedure is to tentatively select a frequency not subject to interference; dete ...


8
King Donald L, Goldberg Gerald M, Parke Donald P, Priester Willis M, Gebhardt Richard A: Automatic target acquisition in mti radar system. Hughes Aircraft Company, MacAllister W H, Adam Walter J, August 20, 1974: US3831174 (18 worldwide citation)

An airborne MTI radar system is disclosed for searching and tracking airborne targets over large bodies of water. In the search mode, returns from staggered PRF's are used to resolve range ambiguity of targets, and first and second multipath returns are used to more positively identify an airborne t ...


9
Gebhardt Richard A, Priester Willis M, Muchlinski Donald A, King Donald L, Parke Donald P, Goldberg Gerald M, Scheidler Stuart P, Sidlo Richard: Airborne switched array radar system. Hughes Aircraft Company, MacAllister W H, Adam Walter J, September 3, 1974: US3833904 (16 worldwide citation)

An airborne radar system is disclosed utilizing multiple fixed antenna arrays mounted within the periphery of the aircraft to avoid aerodynamic modifications and optimumly placed to achieve 360.degree. surveillance coverage. The arrays preferably include a fore mounted array, an aft mounted array, a ...


10
Evans Norol T, Hyneman Richard F: Radar receiver having clutter and large signal reduction. Hughes Aircraft Company, MacAllister W H, Adam Walter J, October 28, 1975: US3916408 (15 worldwide citation)

An improved radar receiver including coherent side-lobe cancellation in which a difference pattern is utilized in azimuth by the auxiliary antenna to reduce the clutter return signal on the auxiliary channel and to also cause the clutter signal to be decorrelated with the clutter received on the mai ...