Don N Thomson Deceased2746 Briarcliff Ave, Henderson, NV 89009

4894660, Jan 16, 1990

Oct 12, 1988

7/256681

Don N. Thomson - Haddonfield NJ
David E. Maron - Marlton NJ

General Electric Company - Moorestown NJ

G01S 1326
G01S 1330
G01S 1338

342129

A swept-frequency radar system transmits pulses consisting of swept-frequency subpulses of nonuniform duration separated by short nontransmitting periods during which an array antenna is resteered. The pulses reflected from a target are processed by a method including estimating the target ranges, producing a reference signal at the time at which the pulse reflected from the target is expected to return. The reflected pulse is phase detected by means of the reference pulse to produce phase detected signals which include information relating to the error between the actual range and the estimated range. The phase detected signals are Fourier transformed to produce range error information. The nonuniform subpulse durations reduce the magnitude of range sidelobes.

4307347, Dec 22, 1981

Jun 28, 1979

6/052732

Don N. Thomson - Haddonfield NJ

RCA Corporation - New York NY

H03D 110

329 50

An envelope detector with an extended linear dynamic range. A first amplitude modulated carrier signal, which can be of an intermediate frequency, is supplied to a first input terminal of a mixer, preferably balanced. The said first signal is also amplified and limited to produce a second signal which is phase synchronized with the carrier signal of said first signal, and which is supplied to the local oscillator input terminal of the mixer. The mixer responds to said first and second signals to produce a substantially dc (baseband) output signal whose waveform is similar to the envelope of said first signal.