The pulse signal is a kind of weak signal with lower SNR. Denoising the pulse signal is an important task before analyzing it.
人体脉象信号是一种信噪比较低的非平稳随机信号，在分析脉象信号之前去噪是一项十分重要的工作。
After analyzing the spectrum of a group of signals, non-polar differential exponent pulse signal was selected as carrier wave, which can separate therapy threshold and ache threshold.
通过对载波信号的频谱分析，提出了一种能分离治疗阈值与疼痛阈值的无极性指数脉冲。
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