For MPSK signals, the signal-to-noise ratio (SNR) estimation can be directly transformed into the signal module estimation.
对于MPSK信号而言，信噪比的估计可以直接转化成对信号模的估计问题。
Most resent approaches to the problem employ noise estimate or Signal-Noise Ratio (SNR) estimate, and hence their performances depend on the estimation of noise.
目前的处理方法普遍需要估计噪声或者信噪比，从而其性能依赖于噪声估计的好坏。
The experimental results demonstrate that the method can give a better estimation of poles of damped exponential signals even in a lower signal-to-noise ratio (SNR) situation.
通过实验表明，该方法较其它方法简单有效，即使在较低信噪比的情况下，也能对极点作出较好的估计。
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