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dn=sqrt(re.FFT(n)^2+im.FFT(n)^2)
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2Â¥2015-01-31 15:59:26
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2Â¥: Originally posted by feixiaolin at 2015-01-31 15:59:26
dn=sqrt(re.FFT(n)^2+im.FFT(n)^2)
theta=·´ÕýÇÐÒªÌÖÂÛ¡¾¸ù¾ÝÕý¸ººÅ×éºÏ¡¿

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3Â¥2015-01-31 17:51:44
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3Â¥: Originally posted by ¸öÄÐ×Ó at 2015-01-31 17:51:44
thetaÊDz»ÊÇÖ»ÄÜÊÇPI/2µÄ±¶Êý£¬»¹ÊÇÓɼÆËãµÃÀ´Ð鲿±Èʵ²¿µÄ·´ÕýÇеÄÖµ¡£ÎÒÏÖÔÚÓõÄÄ£ÐͺÍÀíÂÛÉϵÄÓÐЩ²»Í¬£¬Îª£ºy=d0+(-1)^n *dn* sin(2PI/T *n + theta).....ÆäÖÐthetaȡֵΪ-PIµ½PI¡£¡£¡£µ«ÊÇÄâºÏ³öÀ´µÄÇúÏßn=1, ...

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