基于峰值比的叠加单滑窗信号检测算法

Signal Detection Method by Single Slide Window Superposition Based on Peak Value Ratio

针对有多种固定突发长度的短突发信号的信号检测问题,提出了基于峰值比的叠加单滑窗信号检测算法,即进行多次不同滑动窗长的单滑窗信号检测,再将这些单滑窗信号检测结果序列进行叠加处理,从而得到最终的检测结果序列,最后从该序列中提取峰值得到突发信号起始位置,并计算单滑窗检测结果序列的峰值比以判断突发长度。该算法很好地解决了有多种固定突发长度的短突发信号的检测问题,并且避免了常规检测算法存在的多检或少检符号的问题。

To realize the detection of short burst signals with multiple fixed burst lengths, a signal detection method by single slide window superposition based on peak value ratio is proposed,in which many times of single slide window signal detections with different slide window lengths are conducted,and then those single slide window signal detection result sequences are superposed to obtain the final detection result sequence, at last the peak values are extracted from the final sequence to obtain the start positions of the bursts, and the ratios of the peak values of different single slide window detection result sequences are calculated to determine the burst lengths. The method can solve the problem of the detection of short burst signals with muhiple fixed burst lengths very well, and avoid the problem that general methods always detect more or less symbols.