The sinusoid frequency estimation algorithms for all phase spectrum analysis are studied. 摘要研究了應用於全相位頻譜分析的正弦波頻率估計演算法。
Measurement was made with a spectrum analyzer by first filtering out the fundamental sinewave. 首先濾除基礎正弦波頻率。
According to the oscillation theory of membrane, the inherence frequency and basic frequency of the flexible membrane are obtained. 根據薄膜振動理論得到了彈性膜片的固有頻率和基頻。
