Sequential mono-lobe tracker

Details Sequential mono-lobe tracker Sequential mono-lobe tracker

1984-04-27

1987-11-24

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342 79, 342155, G01S 344

Patent

active

047092386

ABSTRACT:
A mono-lobe tracker is described for tracking a target emitting radio signals incorporating an antenna, a circuit for sequential lobing, a radio frequency amplifier, a mixer, an intermediate frequency amplifier, an amplitude modulator detector, and integrators for storing the amplitude signals corresponding to predetermined off boresight positions, means for taking the difference of two integrators indicating the boresight error, a motor coupled to the error signal for driving the antenna in response to the error signal and a random number generator for generating at random a plurality of frequencies which are coupled as randomly selected to the sequential lobing circuit. A random number generator is also described incorporating a noise diode, an amplifier, a voltage comparator and a counter.

REFERENCES:
patent: 3725937 (1973-04-01), Schreiber
patent: 3849779 (1974-11-01), Boyd
patent: 3982199 (1976-09-01), Green
patent: 3983562 (1976-09-01), Blanchard
patent: 4041487 (1977-08-01), Evans et al.
patent: 4430655 (1984-02-01), Rittenbach

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