【摘要】 对快速傅立叶变换(FFT)在数字信号处理器(DSPS)F206上实现中出现的计算溢出、倒序排列等问题进行了分析并提出了解决方法,同时对快速傅立叶变换(FFT)的特点进行了研究和总结;据此编写出FFT在F206上实现的流程图;根据实验结果,给出了不同长度的FFT运算在F206上实现的运算时间和精度。该结果表明此方法用于一般的信号处理和工业控制中都能达到精度和实时性的要求。更多还原

【Abstract】 The problems that appear in the accomplishment of FFT in DSPs such as overflowing, inverse arrangement and so on are put forward and solved. The characteristics of FFT are researched and summarized, with which the flow chart of accomplishment of FFT in DSPs is compiled. The operating time and accuracy get from the accomplishment are listed, from which it shows that a satisfactory result can be acquired in general application.更多还原