【摘要】 研究了基于专用芯片的高速实时ＦＦＴ系统的点数和精度问题，分析了统一的ＦＦＴ算法与ＦＦＴ专用芯片的级联问题；定标算法与ＦＦＴ专用芯片的精度问题．提出了一种高速实时ＦＦＴ系统的实现方案和性能测试方法，并根据实测数据讨论了ＦＦＴ系统的精度．试验结果证明了理论分析的正确性．更多还原

【Abstract】 Cascade of high speed real time FFT chips by a unified FFT algorithm was analyzed;the scaling algorithm and accuracy of FFT chip were analyzed;a realization scheme of high speed real time FFT system and measurement method of its performance were advanced;the accuracy of realized FFT system was calculated with measured data,and the results of measurement were the same as theory analysis.更多还原