Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Missile or spacecraft guidance
Patent
1975-10-31
1998-11-10
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Missile or spacecraft guidance
244 314, G01S 1372
Patent
active
058350560
ABSTRACT:
Tracking means for establishing a line-of-sight between a control point to which the second craft is being guided and tracking the line-of-sight to follow the second craft and deriving a signal .sub.a representing the rate of rotation of the line-of-sight about the control point; monitoring means for deriving a signal representing the displacement e of the first craft from the line-of-sight, a signal representing the range R.sub.m between the first craft and the control point, and a signal representing the rate of change R.sub.m of the range R.sub.m, presetting means for providing a signal representing a positive quantity k; and a computer for deriving signals representing .sub.c, .sub.c, and k to satisfy the equation ##EQU1## and minimize the difference -.sub.a, k being initially set equal to k.sub.1 ; control means for deriving from the representations provided by the computer a signal representing f(e)+R.sub.m .sub.c +2R.sub.m .sub.c wherein f(e) is a function of e; and guidance means for causing the first craft to develop an acceleration transverse to the said line-of-sight, of a magnitude determined by the control signal.
REFERENCES:
patent: 2979262 (1961-04-01), Penley et al.
patent: 3034228 (1962-05-01), Giloth
patent: 3078041 (1963-02-01), Bomberger
patent: 3260478 (1966-07-01), Welti
patent: 3527429 (1970-09-01), Hawes, Jr. et al.
patent: 3743215 (1973-07-01), Harris
Heap Eric
Herbert Peter John
Bush Freddie M.
Sotomayor John B.
The Secretary of State for Defence in Her Britannic Majesty's Go
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