Title: General method of geometrical passive ranging

Abstract: 1. A passive ranging system for use by a fighter in determining the dista along the line of sight between the fighter and a target travelling at constant speed; comprising in combination: a search and track system operable to generate signals proportional to the azimuth and elevation angles of the line of sight with respect to the fighter coordinate system, a stabilized platform normally slaved to said search and track system operable to generate signals proportional to the angular rate of rotation of the line of sight and signals proportional to the acceleration of the fighter in inertial space, resolver computer means coupled to said stabilized platform operable to resolve said angular rate and acceleration signals into terms of a reference coordinate system, algebraic computer means connected to said stabilized platform and said resolver computer operable to transform said signals into a voltage form representative of range between the fighter and the target.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Lubar, Bertram H. (Elkins Park, PA, US)

Application Number: 090605
Filing Date: 1961-02-20
Publication_date: 1976-09-21
Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Primary Class(es): 342/451 235/414, 701/225
Other Classes:
US Patent Ref:

2921306

Jan, 1960

Jaffee

343/112.

Other Refs:
Primary Examiner: Wilbur, Maynard R.
Assistant Examiner: Berger, Richard E.
Attorney: Warner; Q. B., Hansen; Henry