Multi pathtime delays are estimated precisely with this approach, and disturbances and noises can be refrained effectively.
该方法能准确地进行多径传输情况下的时间延时估计，有效地抑制干扰和噪声的影响。
2
The wireless propagation environment is described first: analyzing the small-scaled fading, including amplitude fading, multi-pathtime delay and Doppler spectrum spread.
The life of the relay is a major index to indicate the reliability of relay. Super-pathtime and pick-up time are important characteristic parameters to indicate the life of relay.