CDMA definition of professional

CDMA is the abbreviation of Code Division Multiple Access, it is in digital technology branch - spread spectrum technology developed a new and sophisticated wireless communication technology. CDMA technology is based on the principle of spread spectrum technology, is about the need to send a certain signal bandwidth data, with a signal bandwidth is much larger than the bandwidth of high-speed pseudo-random code modulation, so that the original data signal bandwidth to be extended via modulation and Sent. The receiving end of exactly the same as the use of pseudo-random code, and to receive the signal bandwidth for processing related to the original broadband signal into data that is the narrow-band signal de-spread in order to achieve information and communication.