±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 229  |  »Ø¸´: 2
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
¡¾Óн±½»Á÷¡¿»ý¼«»Ø¸´±¾Ìû×Ó£¬²ÎÓë½»Á÷£¬¾ÍÓлú»á·ÖµÃ×÷Õß qiupz µÄ 6 ¸ö½ð±Ò

qiupz

½ð³æ (ÕýʽдÊÖ)

[½»Á÷] ÇóÖúmatalbÖзÖÊý¸µÀïÒ¶±ä»»µÄ³ÌÐò

ÈçÌ⣺matalbÖзÖÊý¸µÀïÒ¶±ä»»µÄ³ÌÐò

[ Last edited by kuhailangyu on 2008-12-9 at 21:37 ]
»Ø¸´´ËÂ¥
Éú»îÊæÐÄ£¡¹¤×÷˳ÐÄ£¡
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ning903

ľ³æ (Ö°Òµ×÷¼Ò)

±¿±¿¼Ò×åСº£ëà

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
zzgyb(½ð±Ò+3,VIP+0):ллÄãµÄ²ÎÓ룬»¶Ó­ÔٴιâÁÙ¼ÆËãÄ£Äâ°æ£¡
qiupz(½ð±Ò+4,VIP+0):ºÜºÃлл
Ò»×éËæÊ±¼ä±ä»¯µÄÊý¾Ý£¬Ïë½øÐиµÁ¢Ò¶±ä»¯£¬·ÖÎöÊý¾Ý¡£·ÖÎö»ù²¨Í¼ºÍг²¨Í¼¡£ÐèÒªÓÃmatlab±à³Ì¡£ÓÐ1000¸öµã¡£



N=1:1000; %ʱÓòÊý¾ÝµãÊý
y=a; %aÊÇһǧ¸öµãÊýµÄÊý¾ÝÏòÁ¿ ¡£ÐèÒªÊäÈë»òÕßÕ³Ìù¡£
yf=fft£¨y); %¿ìËÙ¸µÁ¢Ò¶±ä»»
ya=abs(yf(1:1000)); %·ùÖµ
yp=angle£¨yf£¨1£º1000£©£© %Ïàλ
plot(N,ya£©; %»æÍ¼
plot£¨N,yp);
Сº£ëàÀ´µ½Ð¡Ä¾³æ£¬¸÷λ´ï´ï¶à¶à¹ØÕÕ£¡£¡£¡ ¸Ð´¥ÎÒµÄζÈ
2Â¥2008-10-31 08:37:01
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qiupz

½ð³æ (ÕýʽдÊÖ)

ÇëÎÊÂ¥É϶ԷÖÊý¸µÀïÒ¶±ä»»µÄÏà¹ØÖªÊ¶£¬±ÈÈçÏàÓ¦µÄ³ÌÐò
Éú»îÊæÐÄ£¡¹¤×÷˳ÐÄ£¡
3Â¥2008-10-31 09:33:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ qiupz µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 292·Ö£¬²ÄÁÏÓ뻯¹¤£¬ÉêÇëµ÷¼Á +20 ³ÌÇçÖ® 2026-04-01 24/1200 2026-04-04 09:47 by bn53987
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 15615482637 2026-04-03 3/150 2026-04-03 22:50 by ms629
[¿¼ÑÐ] 321Çóµ÷¼Á +3 ÈÏÕæÇóÉÏѧ 2026-04-03 3/150 2026-04-03 21:12 by ¿ÆÑÐСר¼Ò
[¿¼ÑÐ] 336Çóµ÷¼Á +8 kiyy 2026-04-01 8/400 2026-04-03 19:41 by lijunpoly
[¿¼ÑÐ] 303Çóµ÷¼Á +9 DLkz1314. 2026-03-30 9/450 2026-04-03 18:34 by lsÁõ˧
[¿¼ÑÐ] Ò»Ö¾Ô¸ÉúÎïÓëÒ½Ò©£¬296·Ö£¬Çóµ÷¼Á +8 66¹ 2026-04-03 9/450 2026-04-03 14:22 by »¯Ñ§»¯¹¤Ë¶Ê¿ÕÐÉ
[¿¼ÑÐ] 283Çóµ÷¼Á +3 jiouuu 2026-04-03 4/200 2026-04-03 13:28 by jiouuu
[¿¼ÑÐ] 324Çóµ÷¼Á +12 ÏëÉÏѧÇóµ÷ 2026-04-02 12/600 2026-04-03 11:15 by linyelide
[¿¼ÑÐ] 273Çóµ÷¼Á +20 ÀîÜÆÐÂ1 2026-03-31 20/1000 2026-04-03 09:58 by linyelide
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤0856£¬³õÊÔ334 +3 26¿¼ÑвÄÁÏ 2026-04-02 3/150 2026-04-02 21:22 by dongzh2009
[¿¼ÑÐ] 298ÇóBÇøµ÷¼Á +4 zzz£¬£¬r 2026-04-02 5/250 2026-04-02 12:17 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] Ò»Ö¾Ô¸9³õÊÔ366 ±¾Ë«·ÇÇóµ÷¼Á +4 ÔËÆøÀ´µÃÈôÓÐËÆÎ 2026-04-02 4/200 2026-04-02 09:56 by guanxin1001
[¿¼ÑÐ] Ò»Ö¾Ô¸°²»Õ´óѧ¼ÆËã»ú¿ÆÑ§Óë¼¼Êõѧ˶£¬331·ÖÇóµ÷¼Á +5 ½¯²ýÅôqtj 2026-04-01 5/250 2026-04-02 08:10 by fxue1114
[¿¼ÑÐ] 307·ÖÇóµ÷¼Á +14 (o~o) 2026-03-31 15/750 2026-04-01 20:43 by longlotian
[¿¼ÑÐ] µ÷¼Á +5 ºÃºÃ¶ÁÊé¡£ 2026-03-28 7/350 2026-04-01 15:32 by ÍõÁÁ_´óÁ¬Ò½¿Æ´ó
[¿¼ÑÐ] ²ÄÁÏר˶306Ó¢Ò»Êý¶þ +7 z1z2z3879 2026-03-31 7/350 2026-04-01 14:50 by ZXlzxl0425
[¿¼ÑÐ] ÎïÀíѧµ÷¼Á +4 СÑò36 2026-03-30 4/200 2026-03-31 16:16 by lishahe
[¿¼ÑÐ] Ò»Ö¾Ô¸Öк£Ñó320»¯Ñ§¹¤³ÌÓë¼¼Êõѧ˶Çóµ÷¼Á +8 ÅûÐÇºÓ 2026-03-30 8/400 2026-03-31 08:53 by lbsjt
[¿¼ÑÐ] ¸£½¨Àí¹¤´óѧ²ÄÁÏѧԺÏȽøºÏ½ðÍŶÓÕÐÊÕ¿¼Ñе÷¼ÁѧÉú +3 ´ó»ª½ðÉ̶¼ 2026-03-30 4/200 2026-03-31 01:04 by ·½Ó¢¿¡602
[¿¼ÑÐ] 279Çóµ÷¼Á +4 µûÎèÇáÈÆ 2026-03-29 4/200 2026-03-29 09:45 by laoshidan
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û