Area : DSP Date : Tue Jan 05, 21:01 From : Stepan Otarov 2:5061/7.30 To : Vladimir L. Vasilevsky Subj : Windowing? 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴 뤲Ðβ飡㏂� 收∽ � Vladimir! H젹ⅳ��'� Vladimir L. Vasilevsky 췅�ⓤ젷 Stanislav Tihohod �昔 Windowing? ST>> � 譽� �젶�� �젩�? � 細吟ゥ 將� ∥�� 췅 ㄸ젫p젹쵟� p젳�音 ST>> 젷．pⓥМ�, 飡�玎Ł �쩺ⅳ 칛��죖젳�쥯���� 붵p伊. 뢱①�� � 收め收 ST>> ��正���Ł �� �〓嶺� 칛ⅶpⓥ�レ�� 칛��信첓β碎. VV> � ㄲ愼 笹�쥯�: ��誓� 걦� 쩆��瑜 ��誓Л�쬊荻碎 췅 �ぎ��莘 押�ゆ⑧. 앪� VV> ㄵ쳽β碎 ㄻ� ���泣��⑨ 獸嶺�飡� �璵�え 召ⅹ循�. � 첓曄飡´ "若昔蜈�" VV> �ぎ���� 押�ゆĿ �졹獸 ⓤ��レ㎯荻 "렕�� 븼��Þ짛": 떘˘ 外丞 �αぎレぎ... /************************************************************************* black - Blackman window Scales both real and imaginary parts of input array in-place. Requires COMPLEX pointer and length of input array. void black(COMPLEX *x, int n) *************************************************************************/ void black(x, n) COMPLEX *x; int n; { int i; double black,factor; factor = 8.0*atan(1.0)/(n-1); for (i=0; ireal *= black; x->imag *= black; x++; } } /************************************************************************* ham - Hamming window Scales both real and imaginary parts of input array in-place. Requires COMPLEX pointer and length of input array. void ham(COMPLEX *x, int n) *************************************************************************/ void ham(x, n) COMPLEX *x; int n; { int i; double ham,factor; factor = 8.0*atan(1.0)/(n-1); for (i = 0 ; i < n ; i++){ ham = 0.54 - 0.46*cos(factor*i); x->real *= ham; x->imag *= ham; x++; } } /************************************************************************* han - Hanning window Scales both real and imaginary parts of input array in-place. Requires COMPLEX pointer and length of input array. void han(COMPLEX *x, int n) *************************************************************************/ void han(x, n) COMPLEX *x; int n; { int i; double factor,han; factor = 8.0*atan(1.0)/(n-1); for (i = 0 ; i < n ; i++){ han = 0.5 - 0.5*cos(factor*i); x->real *= han; x->imag *= han; x++; } } /************************************************************************* harris - 4 term Blackman-Harris window Scales both real and imaginary parts of input array in-place. Requires COMPLEX pointer and length of input array. void harris(COMPLEX *x, int n) *************************************************************************/ void harris(x, n) COMPLEX *x; int n; { int i; double harris,factor,arg; factor = 8.0*atan(1.0)/n; for (i=0; ireal *= harris; x->imag *= harris; x++; } } /************************************************************************* triang - triangle window Scales both real and imaginary parts of input array in-place. Requires COMPLEX pointer and length of input array. void triang(COMPLEX *,int n) *************************************************************************/ void triang(x, n) COMPLEX *x; int n; { int i; double tri,a; a = 2.0/(n-1); for (i = 0 ; i <= (n-1)/2 ; i++) { tri = i*a; x->real *= tri; x->imag *= tri; x++; } for ( ; i < n ; i++) { tri = 2.0 - i*a; x->real *= tri; x->imag *= tri; x++; } } SO_ > 뿥ギ´ゃ �拾�� �� �젶 拾 Л�．, �� Л�（� � 將�． 쵟ギ. 룼첓 ! Stepan. ��� Night F0X ��� --- 꺇ギㄽ硫 꽙�, 2.50.Beta5+ エ循�� ... * Origin: ��� Night F0X BBS ��� (8632)517458 Private System (2:5061/7.30) Area : DSP Date : Sat Jan 02, 08:58 From : Vladimir Sementchik 2:450/122.36 To : Stanislav Tihohod Subj : Windowing? 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴 눃p젪飡㏂� Stanislav! 꽡죖�． 收‥ 줽�Д�� 率獸�. ST>> � 譽� �젶�� �젩�? � 細吟ゥ 將� ∥�� 췅 ㄸ젫p젹쵟� p젳�音 젷．pⓥМ�, ST>> 飡�玎Ł �쩺ⅳ 칛��죖젳�쥯���� 붵p伊. 뢱①�� � 收め收 ��正���Ł �� ST>> �〓嶺� 칛ⅶpⓥ�レ�� 칛��信첓β碎. 빇p�鼇� �¨췴 �� �き젹 ��嵩エぎ쥯� � 뭹닜� �.66 N1 1978�. 飡p. 60-96 맓ぎД�ㅳ� ��葉�졻� αエ α筍 ¡㎚�┃�飡� 췅⒱� 將�� ╉p췅�. � 瑟젲����� 뫁Д�葉� 궖젮º쮘 mailto:sdv@rfe.bsu.unibel.by ICQ 19026933 ... @c:\MAIL\golded\TAGLINE.cfg --- * Origin: * * * 빇p�溫 �젹, ＄� 췅� �β. 젷�．쥯� 룼エ與� * (2:450/122.36)