目录 图目录… …川 表目录… …V 摘要… …V Abstract… X 第一章绪论… …1 1.1研究背景… …1 1.2研究内容 ……2 1.3论文组织 3 第二章系统指标分析与设计… 5 2.1接收机输入信号特性 5 2.1.1接收机载噪比… 5 2.1.2最小输入功率和最大输入功率… 6 2.2模拟基带性能指标… 8 2.2.1增益控制… ……8 2.2.2噪声系数和线性度 …11 2.2.3滤波器设计指标 15 2.3滤波器的系统考虑… …16 2.3.1滤波器的类型和结构选择… …16 232滤波器级联…。 …17 2.3.3增益控制和带宽调节… …18 第三章线性度和噪声的优化设计… 21 3.1系统非线性的表征… 21 3.1.1非线性时不变系统的级联…21 3.1.2三阶交调的伏尔特拉级数表示… 22 3.2双二次结构的线性度和噪声… 22 3.2.1双二次结构的线性度… 22 3.2.2双二次结构的噪声…。 28 3.2.3线性度和噪声的优化及参数确定… 29 3.3不同带宽下的线性度和噪声 31 第四章非理想特性… …35 4.1前言… 35I 目 录 图目录 ····························································································III 表目录 ·····························································································V 摘 要 ···························································································VII Abstract ·························································································IX 第一章 绪论 ····················································································1 1.1 研究背景 ··············································································1 1.2 研究内容 ··············································································2 1.3 论文组织 ··············································································3 第二章 系统指标分析与设计·······························································5 2.1 接收机输入信号特性 ·······························································5 2.1.1 接收机载噪比 ·································································5 2.1.2 最小输入功率和最大输入功率 ············································6 2.2 模拟基带性能指标 ··································································8 2.2.1 增益控制 ·······································································8 2.2.2 噪声系数和线性度 ··························································11 2.2.3 滤波器设计指标 ·····························································15 2.3 滤波器的系统考虑 ·································································16 2.3.1 滤波器的类型和结构选择 ·················································16 2.3.2 滤波器级联 ···································································17 2.3.3 增益控制和带宽调节 ·······················································18 第三章 线性度和噪声的优化设计························································21 3.1 系统非线性的表征 ·································································21 3.1.1 非线性时不变系统的级联 ·················································21 3.1.2 三阶交调的伏尔特拉级数表示 ···········································22 3.2 双二次结构的线性度和噪声 ·····················································22 3.2.1 双二次结构的线性度 ·······················································22 3.2.2 双二次结构的噪声 ··························································28 3.2.3 线性度和噪声的优化及参数确定········································29 3.3 不同带宽下的线性度和噪声 ·····················································31 第四章 非理想特性··········································································35 4.1 前言 ···················································································35