毕业论文：《电视系统建模与电视信号仿真》.docVIP

PAGE 摘 要 本文的预期目标是分析电视的基本原理，分析电视系统的结构组成以及各部分结构的特点，后期对电视系统进行建模并仿真。电视的基本原理分析主要包括电视机的电路组成框图、彩色与黑白电视机有较大差别的部分电路、电视广播及接收原理、彩色电视色度学基础、彩色电视编码原理等部分；电视系统的结构组成及各部分结构的特点分析主要包括公共信道、伴音通道、亮度通道、色度通道、副载波恢复电路、扫描电路、开关式稳压电源、红外线遥控电路等部分；电视系统的建模与仿真是此论文的重点与难点，电视系统编码器的建模主要包括RGB信号发生器建模、亮度信号通道建模、色度信号通道建模、全电视信号建模；电视信号的仿真主要包括RGB信号产生模块仿真、亮度信号编码通道仿真、色度信号编码通道仿真、全电视信号的仿真。分析电视机的基本原理和各部分的特点都是建立在理论分析的基础上，而通过Matlab仿真软件来构建电视系统模型，能够动态仿真电视系统各主要环节的电视信号波形，更加直观明了。 关键词 电视系统模型，Matlab，电视信号波形 Abstract This paper is to analyze the television target the basic principles of structure and composition of television systems and the structural characteristics of the late model on the television system and simulation. The basic principle of television including the TV circuit diagram, color and black and white TV sets are very different part of the circuit, television broadcasting and reception theory, based on colorimetry of color TV, color TV coding theory and other parts; TV System structure and composition analysis of the characteristics and the main part of the structure, including common channel, audio channels, the luminance channel, color channel, subcarrier recovery circuit, scan circuits, switch mode power supply, infrared remote control circuit, etc; TV Modeling and simulation is the focus of this paper and the difficulties of modeling TV system including the encoder RGB signal generator modeling, modeling of the luminance signal channel, chroma signal channel modeling, modeling of the whole television signal; television signal simulation includes RGB signal generation module simulation, simulation of the luminance signal channel coding, channel coding chroma signal simulation, simulation of all television signals. The basic principle of the TV and the characteristics of each part are established on the basis of theoretical analysis, and through the Matlab simulation software to build television system model, dynamic simulation television system to the major components of the television signal waveform