CAJ | 학술논문

针对采用软件FFT算法实现的谐波检测占用CPU内存空间大、容易影响系统实时性的问题，提出了基于BPF硬件电路谐波检测的方法。根据实际应用中对定性分析和实时性的要求，对所需要的有源带通滤波器（BPF）和控制电路进行了反复测试，实现了对输入信号中部分奇次谐波的可控检测，提高了检测速度，保证了系统的稳定工作。
침대채용연건FFT산법실현적해파검측점용CPU내존공간대、용역영향계통실시성적문제，제출료기우BPF경건전로해파검측적방법。근거실제응용중대정성분석화실시성적요구，대소수요적유원대통려파기（BPF）화공제전로진행료반복측시，실현료대수입신호중부분기차해파적가공검측，제고료검측속도，보증료계통적은정공작。
The harmonic detection implemented by software FFT algorithm may occupies too many CPU memory space to easily affect the system's real-time characteristic .In this paper ,a harmonic detection method based on the BPF hardware circuit was put forward . According to the requirements of qualitative analysis and real-time in practical application , repeated demonstration of the desired active band-pass filter (BPF) and control circuit was made ,and the controllable detection of the odd harmonics in the input signal was realized .It can improve the detection speed and make the system more stable .