【摘要】 针对OFDM训练符号同步算法中存在的大采样数据而导致捕获时间过长的问题,提出了一种多符号改进算法。该算法应用对多个符号等间隔取样并共轭相乘累加的方法,在采用小数目的采样数据时就可以取得较好的性能,同时缩短了定时捕获时间,克服了原来算法中存在的问题。最后,仿真表明该算法的有效性。更多还原

【Abstract】 The rained-symbol timing synchronization algorithm of the presented OFDM needs too long capturing time.Aiming at this problem,a modified multi-symbol algorithm is presented.This algorithm is applied to average-interval sampling from multi-symbol,conjugating,multiplying and accumulating.And it can make a better performance and shorten timing capture only using fewer sample data.What’s more,it overcomes the shortcomings of the original algorithm.Simulation result exhibits the effectiveness of this algorithm.更多还原