Research of a newer spread-spectrum CDM telemetry communication system

In order to reduce the multiplexing interference and enhance the information data transmission efficiency of the common spread-spectrum telemetry communication system, based on the m-sequence's parallel move equivalent sequence, one type of spread-spectrum CDM (code division multiplexing) telemetry communication system is issued. The method of anti-multiplexing interference of the system is given, i.e. through using the parallel move equivalent sequence to modulate the antipodal signal of each path's data, then transmitted with the same channel. Data transmission rate, the error probability and multiplexing interference of the proposed system are analyzed. Mathematic analysis proves that the system not only holds all the merits which are inherent in common spread-spectrum telemetry communication system, but also has better transmission efficiency. Simulation result validated the proved conclusion.