摘要
传统CMMB粗同步算法采用硬件电路实现,环境适应性差且无法实现多标准兼容。针对此问题,提出一种分段搜索的CMMB粗同步算法,该算法在不损失同步性能的基础上,通过分段搜索时域同步信号的方法,大幅压缩了所需的数据存储器容量,适用于DSP实现。该方法也可应用于其他基于OFDM技术的通信系统中。
Primary implement of CMMB coarse timing synchronization using hardware circuit has the shortcomings of poor adaptability and multi - standard incompatibility, A new CMMB coarse timing synchronization algorism suitable for DSP is proposed in this paper, This algorism is based on the method of segmental searching in the synchronize signal of time domain and significantly reduces the required data memory without losing synchronization performance. The segmental search method is also suitable for other wireless systems based on OFDM technique.
出处
《电视技术》
北大核心
2012年第7期1-3,15,共4页
Video Engineering
关键词
分段搜索
CMMB
DSP
粗同步
segmental search
CMMB
DSP
coarse synchronization
