Design and Implementation of PN Code Acquisition Based on FPGA
Dongjin Zhu · Informatization Research · 2010
The technique of PN code acquisition is the key technique in spread spectrum communication,Length for the problem of PN code rapid acquisition in spread spectrum communication,code phase search for a wide range of uncertainty.Serial acquisition requires a lot of time,this can not be tolerated for the real-time spread spectrum receiver of high users;the circuit of parallel to capture is more complex,it′s difficult to realize,and occupy much resource.The paper presents a spread spectrum signal acquisition speed sliding correlation method base on FPGA,to address the problem of capture long PN code under low SNR.Focus on discuss the FPGA implement principle of the system,and empolder base on FPGA,modulate the emulate wave of system,attain the ideal result,improve the system capability in practice apply.