摘要
采用分离纯加减、表格旋转因子、表格整序等优化措施，使得1024复数点基4FFT在Pentium166上只需4ms的运算时间，速度和精度均达到TMS320C25DSP芯片的两倍以上。
By seprating the pure adding-substracting calculations, using twiddle factor table and unscrambling etc. optimization methods, a 1024 complex points base 4 FFT runs only in 4 milliseconds at a pentium166 computer. The speed and accuracy are all above 2 times of TMS320C25 DSP.
出处
《微处理机》
1998年第2期32-34,共3页
Microprocessors
