已知f(jw)=2cos(3w)利用傅里叶变换的性质,求傅里叶逆变换 求傅里叶反变换
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绛旓細y=[(h-j)(i-k)-(j-L)(g-i)]/[(b-d)(i-k)-(d-f)(g-i)]x=j-by-jw(浠ｅ叆浠ヤ笂涓ゅ紡锛墇=[a-(x+by+b^3w)]/b^2 鍐嶅杩颁竴涓嬶紝濡備綍鐢╡xcel瑙ｄ互涓婃柟绋嬬粍锛欰=x+By+B^2z+B^3w C=x+Dy+D^2z+D^3w E=x+Fy+F^2z+F^3w G=x+Hy+H^2z+H^3w 鍏堢敤execl 杈撳叆i j ...
绛旓細鏍规嵁缁欏嚭鐨勪紶杈撳嚱鏁帮紝鍙互灏唖鏇挎崲涓簀w锛屼粠鑰屽緱鍒帮細G(jw) = 2/3(jw) + 1 鐜板湪闇瑕佽绠楀箙棰戠壒鎬у拰鐩搁鐗规с傚箙棰戠壒鎬э細|G(jw)| = sqrt[(2/3w)^2 + 1^2]鐩搁鐗规э細蠁(w) = atan(-2/3w)鍏朵腑锛寍G(jw)|琛ㄧず浼犺緭鍑芥暟鐨勫箙鍊硷紝蠁(w)琛ㄧず浼犺緭鍑芥暟鐨勭浉浣嶃傝嚦浜嶢(tw)锛岄渶瑕佹洿澶氫俊鎭潵...
绛旓細y=[(h-j)(i-k)-(j-L)(g-i)]/[(b-d)(i-k)-(d-f)(g-i)]x=j-by-jw(浠ｅ叆浠ヤ笂涓ゅ紡锛墇=[a-(x+by+b^3w)]/b^2 鍐嶅杩颁竴涓嬶紝濡備綍鐢╡xcel瑙ｄ互涓婃柟绋嬬粍锛欰=x+By+B^2z+B^3w C=x+Dy+D^2z+D^3w E=x+Fy+F^2z+F^3w G=x+Hy+H^2z+H^3w 鍏堢敤execl 杈撳叆i j ...
绛旓細y=[(h-j)(i-k)-(j-L)(g-i)]/[(b-d)(i-k)-(d-f)(g-i)]x=j-by-jw(浠ｅ叆浠ヤ笂涓ゅ紡锛墇=[a-(x+by+b^3w)]/b^2 鍐嶅杩颁竴涓嬶紝濡備綍鐢╡xcel瑙ｄ互涓婃柟绋嬬粍锛欰=x+By+B^2z+B^3w C=x+Dy+D^2z+D^3w E=x+Fy+F^2z+F^3w G=x+Hy+H^2z+H^3w 鍏堢敤execl 杈撳叆i j ...
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