关键词: E H - 4 , 小波变换, 时间序列, 静态效应 桂林理工大学硕士学位论文A b str a c tT h is p a p e rstu d ie s th e ch a ra cteristic o f th e tim e- - seriessig n a lo fh ig h ・・丘eq u en cym a g n eto tellu r ic m eth o d ( E H - 4), in 仃o d u cesth e b a sicth eo r yo fw a v e le ttra n sf o rm , th ed e p thso u n d in g th eo rya n dw o r k in gm e th o d o fE H - 4 . A c c o r d in gto th esto r a g ef o r m a t o f E H _ 4tim e—seriesf ile, th ea u th o rd esig n sap r o g r a mf o rr ea d in ga n dsa v in gE H - 4tim e—series d a tab yM a tla b , a n d th en co n f trrn s th a t th ep r o g r a mis c o r r e c tb y c o m p a r in gw ith th eIm a g e mso f tw a r e, w h ich la y saf o u n d a tio n f o r th esu b se q u e n td a taa na lysisa n dd a tap r o c e ssin g . T a k ea d v a n ta g eo fW T toa n a ly zeth e tim e- seriesa n a lo gsig n a lw h ic h co n ta in s th etria n g lew a v en o ise, im p u lse ja m m in g , sin ew a v en o isea n dr e c ta n g led istu rb in g , elim in a teth e in terf eren cen o iseef f ectiv elya n dth eq u a lityo fth e tim e—seriessig na lisim p r o v e d g r e a tlyA f terw a rd s,a n a ly z eth e tim e—series o fE H _ 4 m e a su r e d d a taw h ic h is in terf eredb y p o w e rlin e a n dw in d ,th en m a k e u s e o fW Tto d e- n o ise th e in terf eren cesig n a l, th eca lcu la tio n resu lt sh o w s th a t50 H zp o w e rlin e in terf eren ce h a s b e e n d e n o ise def f ectiv ely ,th eef f ectiv ec o m p o n e n tso fsig n a la r eh ig h lig h ted ; m a k eth eb a selin e co rrectio n f o r th etim e—series w h ic h is in terf eredb yw in d , th esig na lr e tu r n stoth esig na l sp in d le. T h ea b o v ec o n c lu sio n s sh o wth a tW Ta p p lie dtoth e tim e- serieso fE H - 4sig n a ld a taa n a ly sisa n dd a tap r o cessin gis f ea siblea n def f ective.Inth isp a p e r ,a u th o rstu d ie s th eth eo r yo fsta tic ef f ect a n ditsin f lu en ce, m a k esu s eo fth em a g n eto tellu r ictw o —d im en sio n f in ite e le m e n t f o rw a rdm o d e lin gp r o g r a mto sim u la te asta tice f f e ct w ith lo wresistivityo ftw o - flo o r e a r thg eo electric m o d e l, W Tis u se d tosu p p r e ssth ein f lu e n c e o fit, co m pa ring 州tllo th erco n v en tio n a lsp a tia l f ilterin gm e th o d s, w eca no b ta in abettersu p p r essio nresu ltth r o u g hth e u s e o fl昵it c o n f ir m e d th a t th ef ea sibilitya n def f ectiv en ess o fth e W Ta p p lytosu p p r e ssin gth esta ticef f ect. F in a lly ,a u th o ra n a ly z e saE H - 4m e a su r e d d a tab y l憾id entifysa n d d e te r m in e s th e sta tic ef f ect f i'o m th e m a th e m a tica lth ro u g hth ec r o ss- c o r r e la tio nco ef f icien tm a tr ix w h ic his ca lcu la tedb yth ea p p a ren t- resistiv ity ;It c a ll o b ta in ag o o dsu p p r e ssio nb y u sin go fl住itc a ll reta in th eo r ig in a l la y eredstr u c tu r ein f o r m a tio n a n d lo ca l a n o m a lies ca u sedb yth eg eo lo g ica l a n o m a lyb o d yw h ilesu p p r e ssin gth esta ticeffect.K e yw o rd s: E H - 4 , W a v elettra n sf o rm , T tim e—series, S ta ticef f ectn 桂林理工大学硕士学位论文第一章引言近几十年来, 大地电磁测深法( M T )无论是在国内还是在国外都得到了迅速的发展和广泛的应用, 对于该方法的研究和应用已经渗透到了社会各个领域当中, 它是人们进行地球深部地壳研究、 能源资源开发( 煤炭、 石油、 天然气等)、 矿产资源勘探( 金属、非金属矿产等)、 地震火山等灾害监测以及环境工程勘察等方面的一种主要的地球物理勘查手段【11。