对于计算公式的准确度又作了讨论，指出了采样初相位的计算误差对冲击测量误差的计算基本没有影响。
Thus, the difficult problem concerning theoretical calculation of impulse measurement errors of digitizers is systematic solved. Calculation accuracy is also discussed.
正确确定初相和任意时刻的相位，对于解决振动和波动问题至关重要。
It is important for solving the problem of vibration and wave to determine correctly initial phrase and phrase at any moment.
同态处理方法还可以同时估计单一波模式的衰减、幅度和初相位；
While homomorphic processing can also be used to calculate attenuation, amplitude and phase of one mode simultaneously.
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