注æï¼ãã®ãã¼ã¸ã«ã¯ããã¿ãã¬æ å ±ãå¤ãå«ã¾ãã¦ããã¾ãã ãã¼ã¿ã®é æ¦å¨ãé²å ·åã³ãã¢ã¤ãã å ¨æ¦å¨é²å ·ãç¶²ç¾ è²¡å®ãç§å¢ ã¸ã§ããã¢ããªãã£ å ¨ï¼ï¼ï¼ã¢ããªãã£(ãã¹å«ã)ãåé² ã¢ã³ã¹ã¿ã¼ å¯çã¬ã¢ã»é ãæãåé² åªæè© å±ã©ã³ãã³ã° å ¨è© å±ã¡ãã»ã¼ã¸ãåé² ã¤ã´ã¡ãªã¼ã¹è¨èªæä½ ã¤ã´ã¡ãªã¼ã¹ã«ãããæåã解èªï¼æªå®ï¼ å®å ¨æ»ç¥ã®é ALLã¢ã¤ãã ãç®æã ãã£ã¼ããã³ã¸ã§ã³ æ¦å¨ãå¢ãã Produced by BANA âæããâã¨ãã®æ¦å¨ã®é¢ä¿ Produced by BANA ä¸æè°ãªãã¼ã¿ãã£ã¹ã¯ãFFT編ã é ãã¦ãããã®ä»²éã®ä»æ¹ ããã·ããªãªãèªã¿å°½ãã ã¡ãããã¿ã®ã³ã¼ãã¼ ä¸é¨æã¡ã®æ»ç¥ãæ²è¼ 質åã»è¦æ ã»ããã³ãã¯ãã¡ã çã²ã¼ãã¼ã«æ»ã
è¦ããã㨠ç·å½¢æä¸å¤ã·ã¹ãã ã¤ã³ãã«ã¹å¿ç ããã¿ãã¿ ç®æ¬¡ ç·å½¢æä¸å¤ã·ã¹ãã (課é¡Aã¨èª²é¡Bãå«ã) ã·ã¹ãã ã¨ã¤ã³ãã«ã¹å¿ç ã¤ã³ãã«ã¹å¿çãç¨ããç·å½¢æä¸å¤ã·ã¹ãã ã®å ¥åºåé¢ä¿ èª²é¡ è£è¶³ 1) MATLABãµãã«ã¼ãã³ã®ä½ãæ¹ åèæç® 3-1ç·å½¢æä¸å¤ã·ã¹ãã ä¿¡å·å¦çã§ã¯ã·ã¹ãã ã®è¨è¨ãåé¡ã«ãªãã¾ãã ä¸å³ã®æ§ã«å ¥åä¿¡å·ãã·ã¹ãã ãéãã¨åºåä¿¡å·ã«å¤æããã¾ãã ãã®ã·ã¹ãã (?é¨å)ããç·å½¢ãæ§ã¨ãæä¸å¤ãæ§ã®æ§è³ªãæã¤ä»®å®ãããè¨ç®ã®åãæ±ãä¸ é½åãè¯ããªãã¾ãã 1)ç·å½¢ã·ã¹ãã ç·å½¢ã·ã¹ãã ã¯ãéãåããã®åçãæãç«ã¡ã¾ã(ä¸è¨ã®å³åç §)ãç·å½¢ã·ã¹ãã ã ã¨å ¥åã®å ¨ä½ã§ ã·ã¹ãã ãéãå¿ è¦ãããã¾ãããåå¥ã®ã·ã¹ãã ã®åºåãè¨ç®æ¸ã¿ãªããå¾ã§ä¿æ°åãã¦åã ã®å ãã¨ãã ãã§å ¨ä½ã®ã·ã¹ãã ã®åºåãæ±ãããã¨ãåºæ¥ã¾ãã ã§ã¯ãã¼ãªã¨å¤æãç·å½¢ã·ã¹ãã ãå¦ã調ã¹
ãã£ã¸ã¿ã«ä¿¡å·å¦çãï¼åºç¤ç·¨ï¼ Visitor Number: ä¿¡å·å¤§å¦å·¥å¦é¨ããäºæ¾¤è£å¸ ãã®ãã¼ã¸ã¯ãä¿¡å·å¤§å¦å¤§å¦é¢å士åæ課ç¨ã®è¬ç¾©ãæ å ±ã·ã¹ãã ç¹è«ç¬¬1ããéè¬ããã«ãããã ãã®åºç¤ç¥èã«é¢ããè¦ç¹ãã¾ã¨ãããã®ã§ãã å¾åã§ã¯ãããã®ç¥èããã¨ã«ãããã«é«åº¦ãªå 容ã«ã¤ãã¦è§£èª¬ããäºå®ã§ãã ãã®ææãæ´»ç¨ãããç解ãæ·±ããããããé¡ã£ã¦ãã¾ãã ãã£ã¸ã¿ã«ä¿¡å·å¦çã¨ã¯ï¼ ä¿¡å·å¦çã¨ã¹ãã¯ãã« ãã¼ãªã¨ç´æ°å±é ãã¼ãªã¨å¤æã¨ãã®æ§è³ª ãµã³ããªã³ã°ã¨ãã®ã¹ãã¯ãã« é¢æ£ãã¼ãªã¨å¤æ(DFT) é«éãã¼ãªã¨å¤æ(FFT) ç·å½¢ã·ã¹ãã çªé¢æ° (Window Function) ãã£ã¸ã¿ã«ãã£ã«ã¿ã¨zå¤æ çæéãã¼ãªã¨å¤æã¨é£ç¶ã¦ã§ã¼ãã¬ããå¤æ
Python ãã®2 Advent Calendar 2015ã®13æ¥ç®ã®è¨äºã§ãã æ®æ®µã®ä»äºã¨ãã¦ä¸»ã«é³é¿ä¿¡å·å¦çã®ã¢ã«ã´ãªãºã éçºãDSPå®è£ ãªã©ãè¡ã£ã¦ããã®ã§ãããã¢ã«ã´ãªãºã ãæ§ç¯ããéã¯æåã«Pythonã使ã£ã¦ã¢ã«ã´ãªãºã ã®æ¤è¨ãè¡ãããã®çµæãè¸ã¾ãã¦CãC++ã§PCä¸ã§åä½ãããªã¢ã«ã¿ã¤ã ã¢ãã«ãä½æããã¨ããæµãã§è¡ã£ã¦ãã¾ããé³é¿ä¿¡å·å¦çã«é¢ããã¾ã¨ã¾ã£ãæ¥æ¬èªè¨äºã¯æå¤ã«åå¨ããªããããããã§ã¯Pythonã§é³é¿ä¿¡å·å¦çãè¡ãæ¹æ³ããã³ããã¾ã§ã«ä»äºçã§ä½¿ã£ã¦æ¥ããã¦ãã¦ãªã©ãé©å½ã«ã¾ã¨ãããã¨æãã¾ãã ç®æ¬¡ Pythonã§é³é¿ä¿¡å·å¦çãããã¢ããã¼ã·ã§ã³ ãªã¼ãã£ãªãã¡ã¤ã«ã®èªã¿æ¸ã ãªã¢ã«ã¿ã¤ã ã«ãªã¼ãã£ãªå¦çãè¡ããã å¨æ³¢æ°å¿çã表示ããã ãã¸ã¿ã«ãã£ã«ã¿ãè¨è¨ããã é¶ç¹ã極ã¨ä¿æ°é åb, aãå¤æããã ãã¸ã¿ã«ãã£ã«ã¿ãæç³»åä¿¡å·ã«é©ç¨ããã 群
ãã夫cry2 å®é¨ãã¼ã¿ã®è§£æã¨ãã§ä¿¡å·å¦çãããªãã¡ããªããªããã¨ãå¤ããªã£ã¦ããã⦠ãã夫cry æ°å¦ã§ãã¼ãªã¨è§£æã¨ãç¿ã£ããã©ï¼çé¢ç®ã«èãã¦ãªãã£ãã®ã§ãã£ã±ãããããªãã⦠ãã夫 ã ãããããªã夫ã«æãã¦ãããã! ãã夫ã§å¦ã¶ãã£ã¸ã¿ã«ä¿¡å·å¦ç æ±åå¤§å¦ å¤§å¦é¢æ å ±ç§å¦ç ç©¶ç§ é¡ æ å¾ æ´æ°å±¥æ´ (æçµæ´æ°: 2016.01.08 ) PDFç ã¢ã¹ãã¼ã¢ã¼ãããªãã¨èªãæ°ã«ãªããªãã¨ããæ¹ã¯ï¼ãã¼ã¸ä¸é¨ã®ãã¢ã¤ã³ã³ã表示ããããã¯ãªãã¯ãã¦ãã ããï¼ã¢ã¹ãã¼ã¢ã¼ãã§ã¯ãªããã©å¤å°ã¯å©ãã«ãªãããç¥ãã¾ããï¼ è¬æ¼ã®æ©ä¼ãé ãã¾ããï¼ãé¢ä¿åä½ã«æè¬ãã¾ã: ãã夫ã§ä¿¡å·å¦çã¯å¦ã¹ãã âæ±å大å¦æ©æ¢°ç¥è½ã»èªç©ºå·¥å¦ç§ã«ãããä¿¡å·å¦çæè²ã¨ã¦ã§ãææâ (ä¾é ¼è¬æ¼), é»åæ å ±éä¿¡å¦ä¼ç·å大ä¼, AS-2-8, ä¹å·å¤§å¦ä¼é½ãã£ã³ãã¹, 2016å¹´3æ16æ¥. [PDF]
ç»åã®åºæ¬çãªæ§è³ªãææ¡ããããã«éè¦ã«ãªã£ã¦ããããç»åã®å¨æ³¢æ°é åã§ãããã§ã¯ãå¨æ³¢æ°é åã¯ä½ãï¼ ç»åã®å¨æ³¢æ° é³ãé»æ³¢ãªã©ã®å¨æ³¢æ°ã¨ã¯ãä¸å®ã®æéå ã«å¤åããæ¯åã®åæ°ã®ãã¨ãæãã ç»åã«ããã¦ãåæ§ã®èãæ¹ããããç»åã®æ¿åº¦å¤ããã©ã¡ã¼ã¿ã¨ãã¦ã°ã©ããæ¸ããã¨ã«ãããæããã®å¤åã«å¿ãã¦æ³¢ãå½¢æãããã¨ãã§ããã ããã§ããä¸å®ã®é·ãã§ãã©ã®ãããæããã®å¼·å¼±ãå¤åããã®ããã¨ãããã¨ã§ãç»åã®å¨æ³¢æ°ã決å®ãããã¨ãã§ããã ã¾ããé³ãé»æ³¢ã¯æéã®å¤åã«ä¼´ãæ¯åã®åæ°ã®ãã¨ã§ãããããæéå¨æ³¢æ°ãã¨ããããç»åã®å ´åã¯ç©ºéã®å¤åã«ä¼´ãæ¯åã®åæ°ã®ãã¨ã§ãããã ã空éå¨æ³¢æ°ãã¨ããã ãã¼ãªã¨å¤æ ãã©ã³ã¹ã®æ°å¦è ãã¼ãªã¨ã¯ããã©ããªå½¢ã®æ³¢å½¢ã§ããæ£å¼¦æ³¢ãä½å¼¦æ³¢ã®éåã¨ãã¦è¡¨ããã¨ãã§ãããã¨ãããã¨ãçºè¦ããã ãããããã¼ãªã¨å±éã»ç´æ°ã§ãããã¾ããããã¯ãã©ããªç»åã§ãã
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}