Study of Acquiring Spread Spectrum Code System in Directed Sequence Spread Spectrum Communication
Che Ren · 2004
A key technology to acquire spread spectrum code and the acquiring principle are discussed for the synchronous speed question of directed sequence spread spectrum communication, The acquiring process, the cause and probability of false alarm and the effect on the rate of acquiring spread spectrum code to synchronize are analyzed by utilizing the code sequence phase transfer diagram. Thus, a acquiring system model of spread spectrum codes with auxiliary circuit is esfablished. This system can increase the equivalent noise voltage that input the threshold test utensil on irrelavant state reduce false alarm rate with a shortened acquiring time and improved efficiency of the communication.