US PATENT SUBCLASS 342 / 149
.~ Monopulse

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

147  DF  DETERMINING DIRECTION {6}
149.~ Monopulse {5}
150  DF  .~.~> With common IF channel
151  DF  .~.~> With channel equalization
152  DF  .~.~> With quadrature difference processing
153  DF  .~.~> With particular antenna or waveguide
154  DF  .~.~> Combined with beam steering

DEFINITION

Classification: 342/149

Monopulse:

(under subclass 147) Subject matter including the use of a radar technique in which the angular location information of a source or target object is derivable from each pulse or signals received simultaneously in two or more antenna beams, i.e., sum and difference channels in the receiver compare the amplitudes or phases of the antenna outputs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80, for antenna physical orientation control by return signal

monopulse techniques.

427, for self-orienting antenna pattern monopulse directional receivers.