CAJ | 학술논문

目的：基于现场可编程门阵列（ field programmable gate array ，FPGA）应用平台，提出一种新的脉冲信号峰值检测方法———动态阈值半峰检测法。方法在传统检测方法的基础上，以符合高斯型分布的脉冲信号为检测目标，在检测过程中仅通过保留关于检测脉冲的采样起点、最大值以及脉冲宽度3个检测参数，实现在FPGA平台中针对脉冲峰值的实时快速检测。结果该法解决了传统方法在检测时无法检测基线浮动以及重复检测等问题，检测结果与多项式拟合方法相比，差异性仅为3．2％，与流式细胞仪检测结果相比，差异性为9．3％。结论该方法具有检测速度快，占用内存小，样本缓存少，无需固定阈值的优点，在FPGA应用中可作为一种有效的快速检测方法。
목적：기우현장가편정문진렬（ field programmable gate array ，FPGA）응용평태，제출일충신적맥충신호봉치검측방법———동태역치반봉검측법。방법재전통검측방법적기출상，이부합고사형분포적맥충신호위검측목표，재검측과정중부통과보류관우검측맥충적채양기점、최대치이급맥충관도3개검측삼수，실현재FPGA평태중침대맥충봉치적실시쾌속검측。결과해법해결료전통방법재검측시무법검측기선부동이급중복검측등문제，검측결과여다항식의합방법상비，차이성부위3．2％，여류식세포의검측결과상비，차이성위9．3％。결론해방법구유검측속도쾌，점용내존소，양본완존소，무수고정역치적우점，재FPGA응용중가작위일충유효적쾌속검측방법。
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 .