It is based on the widely used analogue "half-cycle peak ratio" technique, form which it differs by being entirely digital, no additional analogue signal processing or other hardware is required.
提出一种基于“半周期峰值比法”的周期识别新技术，它是全数字化的，不需使用任何附加的模拟电路和硬件支持。
Surface Acoustic Wave Filter (SAWF) is a sort of analogue device for signal processing.
声表面波器件是一种新型的模拟信号处理器件。
Compared to the traditional analogue circuit, the detection system based on a digital circuit has a higher flexibility, smaller size, with the advantages of anti-interference and signal processing.
相比于传统的模拟检测技术，数字检测技术具有稳定性好、抗干扰能力强、处理速度快和体积小、易于集成等优势。
应用推荐