采用重现量化分析方法识别生物雷达回波信号中人体数量地研究.pdfVIP

21 2 Vol. 21 No. 2 2008 4 SpaceM edicine M edicalEngineering pr. 2008 采用重现量化分析方法识别生物雷达回波信号中人体数量 的研究* 夏林林, 王健琪, 路国华, 岳 宇, 荆西京 (, 710032) : 采用重现量化分析方法( recurrence quantification ana lyies, RQA ), 通过对雷达回波信号进 行分析, 对人体数量进行识别 采用超宽谱生物雷达对 于砖墙后的生物体进行探测,采集雷达回 波信号, 运用重现量化分析方法对回波信号进行分析 通过计算 一系列量化指标: 重现率确定率 等,得出有人处的重现率要高于无人处的重现率 采用这种方法能够有效地实现生物雷达探测中 对人体数量的识别 : 重现量化分析; 重现率;熵;生物雷达 : R318. 6 : A : 2008 Study on the M ethod of R ecurrence Quantif ication Ana ly s is ( RQA ) to R ecog nize the Am ount of H um an B od ies in B ioradar E cho S ig na lsX AI Linlin, WANG J ai nq,i LU Guo ua, YUE Yu, J ING X i jingSpace Med icine Medica lEng ni eering, 2008, 21( 2): 126~ 129 Abs tract: Objective To ana lyze t e ec o signa ls in biorada r and to recognize t e amount of uman bodies by using t e met od of recurrence quantification ana lysis( RQA ). M e thods To detect t e or ganism be ind t e brickwa l,l t e ec o sgi na ls were collectedw it ultraw di eband ( UWB) biorada r and ana lyzedw it RQA. R esu lts T roug computing a series ofquantification indices: percent recur rence, percent determinism and so on, itwas s owed t at t e percent recurrence was ig er as someone ex isted t ere t an nobody existed. Conclusion T e number of t e people in t e detection of t e biorada r can be effectively recognized using RQA. K ey w ord s: recurrence quantification analysis; percent recurrence; entropy; bioradar Address repr in t requests to: WANG Jianq.i Department of Electronics, Faculty of Biomed ica l Eng i neering, T e Fourt Milita ry Med ica lUnivers ity, X ian S aanxi710032, C ina [4] , (: ) , ( , ) [ 12] , () Recurrence quantification ana lyies ( RQA ) , , ,