Communication and distance measurement integrated system and method based on code division multiplexing

The invention relates to a communication and distance measurement integrated system and method based on code division multiplexing, and the system consists of a transmitter and a receiver, and the transmitter carries out the spread spectrum of positioning data and communication data through employing spread spectrum codes which are orthogonal to each other, and achieves the conversion from a baseband signal to a radio frequency signal. The receiver converts a received radio frequency signal into a baseband signal, recovers original positioning data and communication data by using different spreading codes, and measures the distance between the transmitter and the receiver. The method comprises seven steps of positioning and communication data generation, multipath orthogonal pseudo-randomcode spread spectrum, radio frequency emission, radio frequency reception, related time delay estimation, multipath orthogonal pseudo-random code dispreading, positioning and communication data recovery. According to the inve