The recursive Fourier algorithm is used in frequency measuring to dynamically track the frequency change and real-timely adjust the sampling rate for fixed sampling points.
采用递推傅氏算法测频，动态跟踪频率变化，实时调整采样率进行定点采样；
Based on the prime radix DFT and number theory, an algorithm using the second order recursive filter and the zero factor prime radix Fourier Transform (ZFT) is presented.
从素基数DFT出发，应用数论理论讨论了一种应用二阶递归滤波结构的算法及零因子转换算法(ZFT)。
To shorten the time of calculating the full-wave Fourier algorithms and improve response time, it is necessary to use Fourier recursive algorithm.
为了缩短全波傅立叶算法的计算时间，提高响应速度，有必要采用递推实时算法。
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