摘要
数字相关器在数字扩频通信系统中应用广泛,受数字信号处理器件速度限制,无法应用于高速宽带通信系统,在此提出了一种基于流水线加法器的数字相关处理算法。该算法最大限度地减少了加法器进位操作,解决了基于全加器型数字相关器存在的进位延迟过大的问题,实现了时分多址体制下的同步段数字相关,提高了同步段相关的可靠性。
Digital correlator is widely applied in digital spread-spectrum communication system,but it cannot be used in high speed wide-band communication system due to the limitation of low-speed DSP device.In this paper,a full-adder based digital correlation processing algorithm is proposed,which largely decreased the carry operation in the full-adder,solved the problem of carry time-delay existing in the full-adder based digital correlator,achieved the synchronization processing in time-division-multiple-access based system and improved the reliability of the synchronization correlation.
出处
《现代电子技术》
2010年第16期151-153,共3页
Modern Electronics Technique
关键词
扩频通信
数字相关
FPGA
流水线加法器
相关器
spread-spectrum communication
digital correlation
FPGA
pipeline adder
correlation device
