本程序是基于C54x DSP的通用实数FFT程序，适合点数16~1024点或复数点数8~512点，主程序为rfft.asm。-This procedure is based on the C54x DSP real FFT common procedures, for points 16 ~ 1024 points, or plural points 8 ~ 512 points, the main program for rfft.asm

这个函数就是用来进行离散的DFT运算了。它可以指定运算的长度。-This function is used for computing the discrete DFT. It can specify the length of operations.

Real sequence of Fourier transform 实序列傅立叶变换 已验证 用N点FFT计算2N点实序列的FFT，比直接进行2N点FFT运算减少一半运算量 -Real sequence of Fourier transform verified with N points FFT calculation sequence of 2 N point FFT, than half 2 N point FFT operation to reduce computational