摘要
载波相位同步是开环结构软件无线电的关键技术,针对全数字接收机的特点,介绍了一种载波相位恢复算法。算法直接利用接收到训练序列进行处理,假设定时已经准确恢复的前提下,只需要一倍码元速率的采样点,无需反馈处理,利用计算出来的相偏直接补偿数据信息相差进行相干解调。仿真结果表明,该算法简单有效,运算量小,与理论值基本相符,非常适合于在DSP器件中实现,实用性强。
The carrier phase estimate is an important technique in the Software Radio （SR） which is based on the open-loop structure. Aiming at the properties of all digital receivers a carrier phase recovery algorithm is presented. Assuming the timing recovery is done it directly processes the Data-aimed （DA） signals with one sample per symbol. No feedback technology is needed in the algorithm. The carrier phase estimated before is used to compensate the phase. The simulation result shows the algorithm is simple, efficient and suited to the DSP implementation.
出处
《成都信息工程学院学报》
2009年第6期561-563,共3页
Journal of Chengdu University of Information Technology
关键词
信号与信息处理
信号处理理论与技术
LS码
FPGA
扩频
解扩
载波恢复
signal and information processing
singnal processing theory and technology
LS code
FPGA
spread spectrum
de-spread
carrier recovery
