An algorithm of real-time peak detection for pulse signals based on FPGA

VernacularTitle:基于FPGA的实时脉冲信号峰值检测方法
Author: Hongtao BAO ; Zhi CHENG ; Feng CHEN ; Xianwen WANG ; Chenyu LI ; Jing GUAN ; Taihu WU
Publication Type:Journal Article
Keywords: pulse signal; FPGA; signal processing; peak detection; flow cytometry; fluorescence
From: Military Medical Sciences 2015;(5):377-379,406
CountryChina
Language:Chinese
Abstract: Objective To present a new algorithm of real-time peak detection for pulse signals based on FPGA , which is known as the dynamic threshold with half peak detection method ( DT-HP ) .Methods With Gaussian-shaped pulse signals as the target , the method was improved from conventional methods .The FPGA detection process of the algorithm required no more than three detection parameters: the starting point , the maximum value and the pulse width .Results The algorithm solved the floating baseline and repeating detection that occur in traditional methods .Compared with the results of polynomial fitting method and flow cytometry , the difference was only 3.2% and 9.3%.Conclusion The algorithm takes less time ,RAM, and cache while allowing floating baseline detection , which can be used as an effective method for rapid detection in FPGA .