USA As Represented by Secretary of the Navy

Wavecom Electronics Inc.

J Eric Salt

G Clifford Carter

Yun X Yuan

Apparatus for and method of processing received signals for use with multiple antenna spatial diversity receivers used in a digital communications system. The receiver has received signal phase modulator apparatus for each diversity received signal. The phase modulator provides a two state phase perturbation of zero or pi radians, based on the carrier frequency, which is switched to modulate the phase of the received signal for a fifty percent duty cycle over a symbol period.

Receiver combiner for spatial diversity digital communications

The present invention relates to a system and a method for determining the earing of an object located at a distance from a reference point. A plurality of sensors are mounted to a body to detect signals emanating from the object and to convert those signals into electrical signals. The electrical signals are then processed to determine the bearing of the object from the body. The system can include a float with the body suspended from said float immersed in a fluid medium. A method for processing the electrical signals and generating the bearing information is also described.

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Saskatoon, Canada

J Eric Salt