Communication receiving apparatus, signal receiving method thereof for recovering data and signal transmitting method for generating transmitting signal based on CDMA technology

摘要

A communication receiving apparatus, a signal receiving method thereof, and a signal transmitting method based Code Division Multiple Access (CDMA) technology are provided. A communication transmitting apparatus encodes an original data sequence based on a perfect Gaussian integer sequence (PGIS) to generate a spread signal and transmits a radio frequency (RF) signal including the spread signal. An autocorrelation function of the PGIS conforms to an impulse characteristic, and the PGIS has a spectrum with equal magnitude. The communication receiving apparatus obtains the RF signal from the communication transmitting apparatus and transforms the RF signal into a baseband signal. The baseband signal is de-modulated into a data stream by the communication receiving apparatus. The data stream is recovered into at least one data value of the original data sequence based on the PGIS by the communication receiving apparatus.