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2014/10/16 ¤W¤È 08:19:57
android Programming Glossary: n2http://stackoverflow.com/questions/9272232/fft-library-in-android-sdk i n public void fft double x double y int i j k n1 n2 a double c s t1 t2 Bit reverse j 0 n2 n 2 for i 1 i n 1 i n1.. y int i j k n1 n2 a double c s t1 t2 Bit reverse j 0 n2 n 2 for i 1 i n 1 i n1 n2 while j n1 j j n1 n1 n1 2 j j.. c s t1 t2 Bit reverse j 0 n2 n 2 for i 1 i n 1 i n1 n2 while j n1 j j n1 n1 n1 2 j j n1 if i j t1 x i x i x j..
http://stackoverflow.com/questions/9272232/fft-library-in-android-sdk i 0 i n 2 i cos i Math.cos 2 Math.PI i n sin i Math.sin 2 Math.PI i n public void fft double x double y int i j k n1 n2 a double c s t1 t2 Bit reverse j 0 n2 n 2 for i 1 i n 1 i n1 n2 while j n1 j j n1 n1 n1 2 j j n1 if i j t1 x i x i.. i n sin i Math.sin 2 Math.PI i n public void fft double x double y int i j k n1 n2 a double c s t1 t2 Bit reverse j 0 n2 n 2 for i 1 i n 1 i n1 n2 while j n1 j j n1 n1 n1 2 j j n1 if i j t1 x i x i x j x j t1 t1 y i y i y j y j t1.. i n public void fft double x double y int i j k n1 n2 a double c s t1 t2 Bit reverse j 0 n2 n 2 for i 1 i n 1 i n1 n2 while j n1 j j n1 n1 n1 2 j j n1 if i j t1 x i x i x j x j t1 t1 y i y i y j y j t1 FFT n1 0 n2 1 for i 0 i m..
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