The influence of the DFT leakage errors on the sound intensity measurement is analyzed and the simulation examples are presented.
分析DFT泄露误差对声强测量的影响，进行模拟计算。
The analyzing time t has a large effect on the DFT analysis: increasing time t reduces the lobe errors, but may not reduce the leakage errors.
分析时间长度T对DFT分析的误差有影响：增加t可以消减旁瓣误差，但是不能消减泄露误差。
A fringe extrapolation method is put forward to decrease the leakage errors. Computer simulations and primary experiments have confirmed the analysis.
提出采用条纹外插以减小泄漏误差的方法，计算机模拟及初步实验证实了该方法的有效性。
Switching and measuring voltage sources with high internal impedance are subject to a number of errors, including offset currents, stray leakage paths, and electrostatic interference.
切换和测量具有高内阻的电压源会受各种误差的影响，包括偏移电流、寄生漏泄通路，以及静电干扰。
And the leakage and picket fence effects of FFT will result in obvious measure errors.
FFT算法的泄漏现象和栅栏效应将会导致较大的测量误差。
In the FFT based algorithm for octave CPB spectrum, the frequency leakage causes big calculation errors in each frequency band.
基于FFT的倍频程CP B谱实现算法中，由于FFT变换时频谱泄漏的影响，导致倍频程CP B谱许多频段出现较大的计算误差。
In the FFT based algorithm for octave CPB spectrum, the frequency leakage causes big calculation errors in each frequency band.
基于FFT的倍频程CP B谱实现算法中，由于FFT变换时频谱泄漏的影响，导致倍频程CP B谱许多频段出现较大的计算误差。
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