在许多测试仪中需要用标准的正弦信号检测一些物理量。
In many tester using standard need in the sine signal detection some physical quantities.
本文致力于研究噪声抵消、正弦信号检测及参数估计等问题。
This dissertation is devoted to the study of noise suppression, sinusoid signal parameters estimation and detection.
理论分析及仿真实验表明该检测系统对被强噪声覆盖的微弱正弦信号非常敏感，对任何零均值噪声具有极强的抑制能力。
Theroy and simulation study have shown that this detection system is very sensitive to weak sine signal under strong noise and can effectively restrain any strong noise which has zero mean.
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