Considering the influence of the input disturbance, a mathematical description of road surface irregularity is established, which is the model of integral white noise and inspire with sine wave.
同时，考虑到路面扰动输入对悬架控制的重要影响，建立出积分白噪声形式的路面不平度数学模型及正弦激励模型。
Both the computer simulation and model experiment prove that it can reduce the total harmonic distortion of the harmonic current from 30.53% to 9.45% and make the waveform approach to sine wave.
通过仿真和电路试验证明，该滤波电路能将电流畸变率由原来的30.53%降低到9.45%，从而使交流侧的电流接近正弦波。
By using moving one period sine wave model, the jitters of amplitude, frequency, phase, and offset of sine wave are evaluated.
使用一个周期的正弦波曲线模型的滑动拟合法，评价了幅度、频率、直流偏移的抖动，以及相位与理论值之偏差的抖动情况。
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