本文介绍了时钟网络中抖动、相位噪声、偏移、频率稳定度等参数的概念以及它们之间的转换关系。

The paper introduce the concepts of timing parameters, including: jitter, phase noise, skew, frequency stabilization, and the relationship between them.

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而处于舰船噪声低频区的线谱具有很高的强度和稳定度，这一事实为估计目标运动要素提供了新的思路。

But the line located in the low frequency of ship noise spectrum has high intensity and stability. This fact provides new idea in estimating target motion parameters.

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其局限性则是对交流信号源要求较高，要求高稳定性、低噪声及低失真度；

The limit of this method is that the sine wave generator with high performance is necessary, especially the stability, the noise and distortion of generator.

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