摘要
FFT是谐波测量中使用最广的方法之一，但利用其进行测量时存在着频谱泄漏，影响测量结果准确性。具体阐述了频谱泄漏产生的原因，并分析三种减少泄漏的方法，同时比较了这三种方法之间的差异，给出了仿真比较结果。
Although FFT is the efficient approach in harmonic measurement fields, it results in spectral leakage, which affects the accuracy of measurement. This paper analyses the reason of spectral leakage in detail. It also presents three means of decreasing leakage and differences among them. The simulation comparison results of these algorithms is given.
出处
《电工技术杂志》
2001年第2期3-4,7,共3页
Electrotechnical Journal
