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Waveform observation system as well as the sampling device of the signal to be measured using the same fundamental and beat component detection method
Waveform observation system as well as the sampling device of the signal to be measured using the same fundamental and beat component detection method
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机译:使用相同的基波和拍频分量检测方法的波形观测系统以及待测信号的采样设备
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摘要
In order to accurately detect the repetition frequency of the measured signal with the harmonic components each having a power such as the (fundamental wave component) of the spectrum obtained from the measurement signal sampled with a certain sampling frequency fs, the The determined frequency fb of the peak signal of a plurality appearing in the band below half the frequency fs a [i], before and after changing the sampling frequency, and due to the fundamental wave of the signal to be measured, each peak signal of the plurality of The sequentially calculated [i, j] and the theoretical frequency fc beat component assuming beat component which is the (fundamental beat component), due to the harmonic components of the measured signal (harmonic beat component), theoretical frequency fc to compare sequential frequency fb of the peak signal and the plurality of [i] [i, j] the respective theoretical frequency fc, the best matching frequency fb of the peak signal and the plurality of [i] [k, j] The fundamental frequency beat component detection method has to be determined to be a fundamental beat component caused by the fundamental wave of the measured signal, the peak signal giving.
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机译:为了准确地检测具有谐波分量的被测信号的重复频率,每个谐波分量具有从以一定采样频率fs采样的测量信号获得的频谱的功率,例如频谱的(基波分量),在改变采样频率之前和之后,在频率fs a [i]的一半以下的频带中出现的多个峰值信号,并且由于要测量的信号的基波,多个计算[i,j]和理论频率fc拍子分量,假设拍子分量为(基本拍子分量),由于测量信号的谐波分量(谐波拍子分量),理论频率fc用来比较拍频的连续频率fb峰值信号和多个[i] [i,j]分别为理论频率fc,峰值信号的最佳匹配频率fb和多个[i] [k, [j]基频拍频分量检测方法必须确定为由测量信号的基波(峰值信号给出)引起的基频拍频分量。
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