缁忛獙妯℃�佸垎瑙?/p>
(EMD)
鍦ㄥ湴鐞冪墿鐞嗚祫鏂欎腑鐨勫簲鐢?/p>
(
闄?/p>
MATLAB
绋嬪簭
)
鎽?/p>
瑕?/p>
缁忛獙妯℃�佸垎瑙?/p>
(EMD)
鏄敱
Huang
绛変汉鎻愬嚭鐨勪竴绉嶆柊鐨勫垎鏋愰潪绾挎�с�侀潪骞崇ǔ淇″彿鐨勬柟
娉曘�?/p>
鏈枃鐮旂┒缁忛獙妯℃�佸垎瑙ｅ師鐞嗗強鍏跺湪鍦扮悆鐗╃悊璧勬枡涓殑搴旂敤銆?/p>
棣栧厛鐮旂┒缁忛獙妯℃�佸垎瑙ｇ殑鍩?/p>
鏈師鐞嗗拰绠楁硶锛屽鍦扮悆鐗╃悊璧勬枡锛堝湴闇囪祫鏂欙紝閲嶇璧勬枡锛夎繘琛?/p>
EMD
鍒嗚В璇曢獙鍒嗘瀽锛岀劧鍚庣爺
绌跺熀浜?/p>
...
<P>
鎽?/p>
瑕?/p>
<BR>
缁忛獙妯℃�佸垎瑙?/p>
(EMD)
鏄敱
Huang
绛変汉鎻愬嚭鐨勪竴绉嶆柊鐨勫垎鏋愰潪绾挎�с�侀潪
骞崇ǔ淇″彿鐨勬柟娉曘�?/p>
鏈枃鐮旂┒缁忛獙妯℃�佸垎瑙ｅ師鐞嗗強鍏跺湪鍦扮悆鐗╃悊璧勬枡涓殑搴旂敤銆?/p>
棣栧厛鐮旂┒缁忛獙
妯℃�佸垎瑙ｇ殑鍩烘湰鍘熺悊鍜岀畻娉曪紝瀵瑰湴鐞冪墿鐞嗚祫鏂欙紙鍦伴渿璧勬枡锛岄噸纾佽祫鏂欙級杩涜
EMD
鍒嗚В璇曢獙
鍒嗘瀽锛岀劧鍚庣爺绌跺熀浜?/p>
EMD
鐨?/p>
Hilbert
鍙樻崲鍘熺悊鍙婂叾鍦ㄦ彁鍙栧湴闇囧睘鎬т俊鎭腑鐨勫簲鐢紝瀵瑰疄闄?/p>
鍦伴渿鏃堕棿鍓栭潰鍜屾椂闂村垏鐗囪繘琛?/p>
EMD
鏃堕鍒嗘瀽璇曢獙銆?/p>
<BR>
鏈枃鐨勬柟娉曠爺绌跺拰鏁版嵁璇曢獙鍒嗘瀽
琛ㄦ槑锛氱粡
EMD
鍒嗚В鍙樻崲寰楀埌鐨?/p>
IMF
搴忓垪鏄洿鎺ヤ粠鍘熷鏃跺簭鏁版嵁涓垎绂诲嚭鏉ョ殑
,
浜嬪厛鏃犻渶纭?/p>
瀹氬垎瑙ｉ樁娆?/p>
,
鑳芥洿濂藉弽鏄犲師濮嬫暟鎹浐鏈夌殑鐗╃悊鐗规�?/p>
,
姣忛樁
IMF
搴忓垪閮戒唬琛ㄤ簡鏌愮鐗瑰畾鎰忎箟鐨勯
甯︿俊鎭紱
EMD
鍒嗚В鑾峰緱鐨?/p>
IMF
搴忓垪鍏锋湁绋虫�佹�?/p>
,
瀵?/p>
IMF
杩涜
Hilbert
鍙樻崲锛屽氨鍙互寰楀埌鍗曚釜
鍥烘湁妯℃�佸嚱鏁扮殑鐬椂鎸箙銆?/p>
鐬椂鐩镐綅鍜岀灛鏃堕鐜囷紝
杩欎簺淇℃伅鍙互娓呮鐨勬樉绀轰俊鍙风殑鏃堕鐗瑰緛锛?/p>
EMD
鍒嗘瀽鏂规硶鐢ㄤ簬鍒嗚В鍦扮悆鐗╃悊璧勬枡鍜屼綔鏃堕鍒嗘瀽鏄湁鏁堢殑銆?/p>
<BR>
鍏抽敭璇嶏細
缁忛獙妯℃�佸垎瑙ｏ紱
鍦扮悆鐗╃悊锛?/p>
Hilbert
鍙樻崲锛涘浐鏈夋ā鎬佸嚱鏁帮紱鏃堕鍒嗘瀽
<BR> <BR>ABSTRACT<BR>Empirical Mode Decomposition(EMD), which was
developed by huang, is a new method to analyse nonlinear and nonstationary signals. In this paper,
we study the theory of EMD and its applications in handling geophysical data. Firstly, we
introduce the theory and the Methodology about EMD ,then we will use this method to analyse the
geophysical information, including the g
ravity anomaly data and seism鈥檚 data. Based on the EMD,
we will study the theory of the Hilbert transform, and then use it to obtain the images,from which
we can deal with the seism鈥檚 slice by time
-
frequency analysis in order to distill the seism鈥檚
information.
<p class='Omx379'></p> <BR>The studying of EMD and the data testing in this
paper indicate: intrinsic mode functions(IMF) is comes from the original signal by the EMD, in
this course, we need not fix on the Decomposition number and would not influenced by some
men鈥檚 factors. Every intrinsic mode function stand for some given information and can reflect the