这种估计方法不需要利用任何训练序列或导频信号，进一步提高了系统频带利用率，降低了计算复杂度。
This estimation algorithm doesn't need any training sequences or pilot signal, therefore improves band efficiency and lower computational complexity.
在初始阶段， 通过设计导频序列，以实现帧级的捕获和脉冲级跟踪；
In the initiation phase, a pilot symbol sequence designed is capitalized to assure frame-level acquisition and pulse-level tracking.
本论文主要针对这个关键技术及相关的最优导频序列设计问题进行了研究。
This thesis focuses on this topic and the corresponding design issue of the optimal pilot sequence.
应用推荐