FPGA Implementation of PN Code Acquisition Based on Software Radio

Spread spectrum technology can effectively solve the problems such as bad channel environment, multi-path fading etc between mobile station and subscribers. At present the research on the synchronization of PN code is more concentrated on how to implement fast acquisition. This paper introduces the sliding correlation method of PN code acquisition, gives out a serial and parallel acquisition method which is suitable for the mobile communication, and designs circuit under electronic design software Quartus II using VHDL. At last the accuracy of this method was verified on FPGA.