Fast Fourier Transform (FFT) is inevitable to cause the spectrum leakage and fence effect because of truncation and discreteness in signal collection.

采用快速傅立叶变换(FFT)进行电力系统谐波分析时，需要对采样信号截断并离散化，从而导致频谱泄漏和栅栏效应。

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Comparing with the FFT and the amplitude measure arithmetic, the novel method can avoid the spectrum leakage and fence effect in ideal extent and improve the precision of harmonics measurement.

与FFT和幅值检测法相比，该方法能消除fft算法的频谱泄露，提高了谐波检测的精度，且适用于含有非整数次谐波的信号。

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The resemblance continues in certain details, such as the fully-glassed terrace fence pulled back from the façade axis, which minimizes its effect on the volume of the house.

而在某些细节处也有与游艇相似的地方，比如全玻璃阳台围栏最大限度地减少了其体量对房子的影响。

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But at Aintree, this first-fence effect is especially pronounced.

WSJ: Why They Fear Aintree's First

When Mr Bush said you are either with us or against us, he in effect pushed fence-sitters into the enemy camp.

ECONOMIST: The Middle East

"At that point we said, 'well OK, the fence isn't having the desired effect', " said Mr Knox.

BBC: Surrey