the phantom carrier signal is orthogonal code division multiple access code tracking system (OCDMA CODE TRACKING SYSTEM HAVING PHANTOM carrier SIGNAL)

摘要

the channel band width signal in communication system ODCMA PN code (pseudo - noise code) of each channel, and according to a set of rw (Rademacher - Walsh) code is selected for a connection of knowledge. the set of rw symbol is designated a (good, is to reduce the RWo). each transceiver has a hole (null) detection to track the same (synchronize) and the decision threshold lower than the falling ball (for example, in the version of the song, rw) is obtained, and the track circuit (acquisition and tracking circuitry) equipped with a.