Patent ID: 6788735
Filing Date: 2004-09-07
Classification: G01C,G01S,H04B

Abstract:
A method of receiving a coarse/acquisition (C/A) code comprising:designating a plurality of multiplexing factors such that each multiplexing factor is evenly divisible by a prime factor of a number that is a number of bits in the C/A code, wherein a predetermined time period is required to transmit the number of bits; slicing the time period into number of smaller time periods by dividing the time period by a first one of the plurality of multiplexing factors such that a plurality of sample segments of half-chip wide bits of the C/A code is processed in each of the smaller time periods; multiplexing each sample segment by a second multiplexing factor such that each sample segment rotated for a number of different C/A code sources, wherein the number is equal to the second multiplexing factor; generating a number of code delays for each of the number of different C/A code sources, wherein the number of code delays is equal to a third multiplexing factor; and correlating each rotated sample segment against a plurality of the generated code delays.