NEW CODING METHODS FOR LOWER COST SATELLITE COMMUNICATION

Period of Performance: 01/01/1993 - 12/31/1993

$50K

Phase 1 SBIR

Recipient Firm

Consultare Group Inc.
4853 Cordell Ave Ste 901
Bethesda, MD 20814
Principal Investigator

Abstract

RESEARCHERS ARE CREATING A NEW SYSTEM, THROUGH THE RNA SEQUENCES TO ACHIEVE SYNCHRONIZATION, SPECTRUM SPREADING, STATION INDENTIFICATION, AND MESSAGE TRANSMISSION ALL AT THE SAME TIME. TWO ALGORITHMS ARE BEING DEVELOPED TO PROVIDE SIMPLE IMPLEMENTATION AND ASSOCIATED PRODUCTS. THE FIRST ALGORITHM, BASED ON PLANAR EUCLIDEAN GEOMETRY, AND EVEN DEGREE PRIMITIVE POLYNOMIAL, AND OPERATED IN TWO RELATED FINITE FIELDS, DERIVES DIFFERENCE-SETS WITH SPECIAL PROPERTIES. THE SECOND ALGORITHM, USING THE ELEMENTS OF THE DERIVED SET, GENERATES A GROUP OF UNIQUE RNA SEWUENCES BY ESTABLISHING TWO GENERATOR MATRICES AND TWO TRANSFORMATIONS. USING A SINGLE FREQUENCY SOURCE, A GROUP OF TIME DELAY DEVICES AND FREQUENCY DIVIDERS, AN ASSEMBLER AT THE TRANSMITTER, AND A CORRELATION DETECTOR AT THE RECEIVER, THE SYSTEM IS BEING DESIGNED WITH SIMPLE IMPLEMENTATION.