In same frequency network mode, the classical frame detection algorithm is noneffective in cell edge.
在同频组网模式下,由于来自相邻小区的干扰,在小区边缘传统帧检测算法失效。
参考来源 - 宽带无线通信系统下行同步和小区搜索技术研究A special training sequence is used in timing synchronization which is divided into three steps: frame detecting, coarse timing synchronization and final timing synchronization. Frame detecting and coarse timing synchronization are achieved by random sequence with low PAR.
定时同步采用特殊的训练序列,分三步走:帧检测、粗同步、精同步。
参考来源 - 超宽带无线通信系统同步方案的研究与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
再进行基于空域滤波的单帧检测算法。
Finally, the single-frame detection algorithm based on spatial filter is performed.
于是我们可直接利用镜头中的I 帧检测文字帧的出现。
We can make use of I frames in the shot to detect text frame.
该口播帧检测方法在通用性、实时性和准确性等方面均具有较显著的优点。
The detection method has significant improvement in several aspects such as currency, real-time response, accuracy and etc.
应用推荐