CAJ | 학술논문

设计并实现了一种适用于便携式故障诊断系统中的FFT算法，该FFT算法利用外部RAM芯片解决了便携式故障诊断系统中数字处理器在计算大数据量FFT算法时出现的内存不足问题。并对实现该FFT算法系统的硬件组成进行了阐述，给出了该FFT算法的软件流程图和软件设计中的要点。将FFT算法应用在便携式故障诊断系统上能够快速并且精确地计算出故障信号的频率，特别适用于便携式故障诊断系统中大数据量的FFT运算。
설계병실현료일충괄용우편휴식고장진단계통중적FFT산법，해FFT산법이용외부RAM심편해결료편휴식고장진단계통중수자처리기재계산대수거량FFT산법시출현적내존불족문제。병대실현해FFT산법계통적경건조성진행료천술，급출료해FFT산법적연건류정도화연건설계중적요점。장FFT산법응용재편휴식고장진단계통상능구쾌속병차정학지계산출고장신호적빈솔，특별괄용우편휴식고장진단계통중대수거량적FFT운산。
A FFT algorithm which is suitable for the portable fault diagnosis system is designed and realized in the paper, the FFT algorithm using the external RAM chip solves the problem that the processor of the portable fault diagnosis system is out of memory when the processer calculates the FFT algorithm with a large amount of data. The hardware components used to implement the FFT algorithm are introduced, and in software design, the software flow and the main points are present. Finally, the FFT algorithm in the paper can quickly and accurately calculate the fault signal’ s frequency and especially suitable for the FFT algo-rithm with large amount of data in the portable fault diagnosis system.