摘要无线生命体征检测系统是一种结合了无线生命体征信号检测技术,用于实时检测患者生命体征参数的探测系统。生命体征信号的处理关系到对患者生命体征及病理的分析,因此用几种有效的算法处理生命体征信号尤其重要。本文针对无线生命体征信号检测算法其中的文格纳算法展开相关的研究,其主要工作如下: 1. 介绍了无线生命体征系统检测的基本原理以及硬件构成,系统对人的呼吸还有心跳等活动所调制的回波信号进行处理,提取生命体征参数;整套系统分为信号发射、模拟接收和数字处理三个部分。 2. 对文格纳算法进行 MATLAB仿真,先后通过对正弦信号、模拟生命体征信号还有实测将信号进行算法处理获得文格纳分布图,从而比较不同处理方法获得的图像有效性,获得最佳的处理方式。 3. 基于TMS320C6713 芯片的DSP 平台对文格纳算法进行调试,验证算法的可行性。 28454
毕业论文关 键 词 生命体征信号 文格纳分布 信号处理 MATLAB仿真 DSP
Title The study and implementation of wireless detecting algorithm of vital signs based on Wigner distribution
Abstract Wireless vital sign detection system is a detection system for real-time detection of patients’ vital signs parameters combining wireless vital sign signal detection technology .The treatment of Vital signs is related to patient's vital signs and pathological analysis. Therefore, several effective algorithms for processing vital signs are especially important. This article launches the research related to wireless vital sign detection algorithm based on the Wigner algorithm. The main work is as follows: 1. The paper introduces the basic principle and hardware structure of the wireless vital signs detection system .The system processes the echo signal modulated by breathing and heartbeat and other activities and extracts parameters of vital signs ;The entire system is pided into three parts for signal transmission, the, analog receiver and digital processing 2. The Wigner algorithm of MATLAB simulation has passed for sinusoidal signal, simulation vital signs and measured signal processing to obtain the Wigner distribution graph, in order to compare the different method of image availability, to obtain the best way to handle the situation. 3. Debug the Wigner algorithm based on TMS320C6713 chip DSP platform to verify the feasibility of the algorithm.
Keywords Vital sign Wigner Distribution Function Signal processing MATLAB simulation DSP
1绪论.1
1.1课题的研究背景及研究目的1
1.2发展现状及发展前景2
1.3无线生命体征检测系统的研究意义2
1.4论文构成及研究3
2无线生命体征检测的基本原理.4
2.1原理分析.4
2.2硬件原理图.5
2.3软件实现.6
2.4信号处理模块7
2.5本章小结.7
3基于文格纳分布的无线生命体征检测算法设计.8
3.1文格纳分布原理介绍.8
3.2文格纳分布算法MATLAB的初步实现8
3.3回波信号的建模与仿真13
3.3.1回波信号的建模.13
3.3.2模拟信号的文格纳算法分析15
3.3.3合成信号分离后的文格纳分布.18
3.4实测信号的文格纳分布20
3.5本章小结23
4基于DSP的信号处理24
4.1DSP的选型24
4.2DSP的软件设计24
4.2.1DSP集成环境CCS简介.24
4.2.2整体设计流程.25 基于维格纳分布的无线生命体征检测算法研究与实现:http://www.youerw.com/tongxin/lunwen_23300.html