銆�銆�鑷仼鎳�婵炬尝鍣�鏄兘澶犳牴鎿�(j霉)杓稿叆淇¤櫉鑷嫊瑾�(di脿o)鏁存�ц兘閫茶鏁�(sh霉)瀛椾俊铏熻檿鐞�鐨�鏁�(sh霉)瀛楁烤娉㈠櫒銆傛牴鎿�(j霉)鐠�(hu谩n)澧冪殑鏀硅畩锛屼娇鐢ㄨ嚜閬╂噳绠楁硶渚嗘敼璁�?y艒u)V娉㈠櫒鐨勫弮鏁�(sh霉)鍜岀祼(ji茅)妲�(g貌u)銆備竴鑸儏娉佷笅锛屼笉鏀硅畩鑷仼鎳夋烤娉㈠櫒鐨勭祼(ji茅)妲�(g貌u)銆傝�岃嚜閬╂噳婵炬尝鍣ㄧ殑绯绘暩(sh霉)鏄敱鑷仼鎳夌畻娉曟洿鏂扮殑鏅傝畩绯绘暩(sh霉)銆傚嵆鍏剁郴鏁�(sh霉)鑷嫊閫ｇ簩(x霉)鍦伴仼鎳変簬绲﹀畾淇¤櫉锛屼互鐛插緱鏈熸湜闊挎噳銆傝嚜閬╂噳婵炬尝鍣ㄧ殑鏈�閲嶈鐨勭壒寰佸氨鍦ㄤ簬瀹冭兘澶犲湪鏈煡鐠�(hu谩n)澧冧腑鏈夋晥宸ヤ綔锛屽苟鑳藉璺熻工杓稿叆淇¤櫉鐨勬檪璁婄壒寰併��
銆�銆�浠ヨ几鍏ュ拰杓稿嚭淇¤櫉鐨勭当(t菕ng)瑷堢壒鎬х殑浼拌▓鐐轰緷鎿�(j霉)锛岄噰鍙栫壒瀹氱畻娉曡嚜鍕曞湴瑾�(di脿o)鏁存烤娉㈠櫒绯绘暩(sh霉)锛屼娇鍏堕仈鍒版烤娉㈢壒鎬х殑涓�绋畻娉曟垨瑁濈疆銆�鑷仼鎳夋烤娉㈠櫒鍙互鏄�ｇ簩(x霉)鍩熺殑鎴栨槸闆㈡暎鍩熺殑銆傞洟鏁ｅ煙鑷仼鎳夋烤娉㈠櫒鐢变竴绲勬娊闋欢閬茬窔銆佸彲璁婂姞娆�(qu谩n)绯绘暩(sh霉)鍜岃嚜鍕曡(di脿o)鏁寸郴鏁�(sh霉)鐨勬妲�(g貌u)绲勬垚銆傞檮鍦栬〃绀轰竴鍊嬮洟鏁ｅ煙鑷仼鎳夋烤娉㈠櫒鐢ㄤ簬妯℃摤鏈煡闆㈡暎绯荤当(t菕ng)鐨勪俊铏熸祦鍦�銆傝嚜閬╂噳婵炬尝鍣ㄥ皪杓稿叆淇¤櫉搴忓垪x(n)鐨勬瘡涓�鍊嬫ǎ鍊�锛屾寜鐗瑰畾鐨勭畻娉�锛屾洿鏂般�佽(di脿o)鏁村姞娆�(qu谩n)绯绘暩(sh霉)锛屼娇杓稿嚭淇¤櫉搴忓垪y(n)鑸囨湡鏈涜几鍑轰俊铏熷簭鍒梔(n)鐩告瘮杓冪殑鍧囨柟瑾ゅ樊鐐烘渶灏忥紝鍗宠几鍑轰俊铏熷簭鍒梱(n)閫艰繎鏈熸湜淇¤櫉搴忓垪d(n)銆�
銆�銆�20涓栫磤40骞翠唬鍒濇湡锛孨.缍磵棣栧厛鎳夌敤鏈�灏忓潎鏂规簴鍓囪ō瑷堢窔鎬ф烤娉㈠櫒锛岀敤渚嗘秷闄ゅ櫔鑱�銆侀爯娓垨骞虫粦骞崇┅(w臎n)闅ㄦ淇¤櫉銆�60骞翠唬鍒濇湡锛孯.E.鍗＄埦鏇肩瓑鐧�(f膩)灞曞苟灏庡嚭铏曠悊闈炲钩绌�(w臎n)闅ㄦ淇¤櫉鐨勬檪璁婄窔鎬ф烤娉㈣ō瑷堢悊璜�銆傜董绱�銆佸崱鐖炬浖锛嶆尝鑹叉烤娉㈠櫒閮芥槸浠ラ爯鐭ヤ俊铏熷拰鍣伈鐨勭当(t菕ng)瑷堢壒寰佺偤鍩虹锛屽叿鏈夊浐瀹氱殑婵炬尝鍣ㄧ郴鏁�(sh霉)銆傚洜姝�锛屽儏鐣跺闅涜几鍏ヤ俊铏熺殑绲�(t菕ng)瑷堢壒寰佽垏瑷▓婵炬尝鍣ㄦ墍渚濇摎(j霉)鐨勫厛椹椾俊鎭竴鑷存檪锛岄�欓婵炬尝鍣ㄦ墠鏄殑銆傚惁鍓�锛岄�欓婵炬尝鍣ㄤ笉鑳芥彁渚涙�ц兘銆�70骞翠唬涓湡锛孊.缍痉缇呯瓑浜烘彁鍑鸿嚜閬╂噳婵炬尝鍣ㄥ強鍏剁畻娉�锛岀櫦(f膩)灞曚簡婵炬尝瑷▓鐞嗚珫銆�
銆�銆�浠ユ渶灏忓潎鏂硅宸偤婧栧墖瑷▓鐨勮嚜閬╂噳婵炬尝鍣ㄧ殑绯绘暩(sh霉)鍙互鐢辩董绱�-闇嶇敨澶柟绋嬭В寰�
銆�銆�寮忎腑W(n)鐐洪洟鏁ｅ煙鑷仼鎳夋烤娉㈠櫒鐨勭郴鏁�(sh霉)鍒楃煩闄Ｎ�xx-1(n)鐐鸿几鍏ヤ俊铏熷簭鍒梮(n)鐨勮嚜鐩搁棞(gu膩n)鐭╅櫍鐨勯�嗙煩闄�,桅dx(n)鐐烘湡鏈涜几鍑轰俊铏熷簭鍒楄垏杓稿叆淇¤櫉搴忓垪x(n)鐨勪簰鐩搁棞(gu膩n)鍒楃煩闄�銆�
銆�銆�B.缍痉缇呮彁鍑虹殑涓�绋柟娉曪紝鑳藉鏅傛眰瑙ｈ嚜閬╂噳婵炬尝鍣ㄧ郴鏁�(sh霉)锛屽叾绲�(ji茅)鏋滄帴杩戠董绱嶏紞闇嶇敨澶柟绋嬭繎浼艰В銆傞�欑ó绠楁硶绋辩偤鏈�灏忓潎鏂圭畻娉曟垨绨＄ū LMS娉曘�傞�欎竴绠楁硶鍒╃敤鏈�闄′笅闄嶆硶锛岀敱鍧囨柟瑾ゅ樊鐨勬搴︿及瑷堝緸鐝�(xi脿n)鏅傚埢婵炬尝鍣ㄧ郴鏁�(sh霉)鍚戦噺杩唬瑷堢畻涓嬩竴鍊嬫檪鍒荤殑绯绘暩(sh霉)鍚戦噺
銆�銆�寮忎腑銆愇�2(n)銆戠偤鍧囨柟瑾ゅ樊姊害浼拌▓锛�
銆�銆�ks鐐轰竴璨犳暩(sh霉)锛屽畠鐨勫彇鍊兼焙瀹氱畻娉曠殑鏀舵杺鎬�銆傝姹�
锛屽叾涓�max鐐鸿几鍏ヤ俊铏熷簭鍒梮(n)鐨勮嚜鐩搁棞(gu膩n)鐭╅櫍鐗瑰緛鍊�銆�
銆�銆�鑷仼鎳� LMS绠楁硶鐨勫潎鏂硅宸秴閬庣董绱嶆烤娉㈢殑鏈�灏忓潎鏂硅宸�锛岃秴閬庨噺绋辫秴鍧囨柟瑾ゅ樊銆傞�氬父鐢ㄨ秴鍧囨柟瑾ゅ樊鑸囨渶灏忓潎鏂硅宸殑姣斿�硷紙鍗冲け瑾�(di脿o)锛夎⿻鍍硅嚜閬╂噳婵炬尝鎬ц兘銆�
銆�銆�鎶介牠寤堕伈绶氱殑闈為仦姝稿瀷鑷仼鎳夋烤娉㈠櫒绠楁硶鐨勬敹鏂傞�熷害锛屽彇姹轰簬杓稿叆淇¤櫉鑷浉闂�(gu膩n)鐭╅櫍鐗瑰緛鍊肩殑闆㈡暎绋嬪害銆傜暥鐗瑰緛鍊奸洟鏁ｈ純澶ф檪锛岃嚜閬╂噳閬庣▼鏀舵杺閫熷害杓冩參銆傛牸鍨嬬祼(ji茅)妲�(g貌u)鐨勮嚜閬╂噳绠楁硶寰楀埌寤ｆ硾鐨勬敞鎰忓拰瀵﹂殯鎳夌敤銆傝垏闈為仦姝稿瀷绲�(ji茅)妲�(g貌u)鑷仼鎳夌畻娉曠浉姣旓紝瀹冨叿鏈夋敹鏂傞�熷害杓冨揩绛夊劒(y艒u)榛�銆備汉鍊戦倓鐮旂┒灏囪嚜閬╂噳绠楁硶鎺ㄥ唬鍒伴仦姝稿瀷绲�(ji茅)妲�(g貌u)锛涗絾鐢变簬閬炴鍨嬬祼(ji茅)妲�(g貌u)鑷仼鎳夌畻娉曠殑闈炵窔鎬�锛岃嚜閬╂噳閬庣▼鏀舵杺鎬ц唱(zh矛)鐨勫毚鏍煎垎鏋愬皻寰呮帰瑷�锛屽闅涙噳鐢ㄥ皻鍙楀埌涓�瀹氶檺鍒躲��
銆�銆�鈼忚嚜閬╂噳鍙嶉娑堥櫎锛坋n:Adaptive Feedback Cancellation锛�
銆�銆�鈼忓櫔鑱叉秷闄わ紙en:Noise cancellation锛�
銆�銆�鈼忛�氶亾杈ㄨ瓨锛坋n:Channel identification锛�
銆�銆�鈼忛�氶亾鍧囪
銆�銆�鈼忎俊铏熼爯娓�
缍韩闆诲瓙閫�锛岄浕瀛愮煡璀�锛屼竴鏌ョ櫨閫�锛�
宸叉敹閷勮姊�162542鍊�
