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试题名称:电路分析1.简要回答下列问题:(1)一个电路的传递函数H(ω)和冲激响应(脉冲响应)h(t)是怎样定义的?两者有什么数学关系?(5分)(2)电路的带宽是什么意思?三分贝带宽是怎样定义的? (5分)(3)信号带宽是什么意思?怎样计算单个视频脉冲信号和周期等幅高频脉冲序列信号的带宽? (5分)(4)一般有源和无源电路里主要存在哪几种随机噪声?它们的概率分布是什么?表征这种随机噪声特性的有哪几个重要的统计量? (5分)(5)什么叫传输线的特性阻抗和负载阻抗?当特性阻抗Z_O和负载阻抗Z_R相等时,传输线上会出现什么现象? (5分)2.图1为一简单的RC电路
Title: Circuit Analysis 1. Briefly answer the following questions: (1) How is the transfer function H (ω) and impulse response (impulse response) h (t) of a circuit defined? What is the mathematical relationship between the two? (5 points) (3) What is the meaning of the signal bandwidth? How to calculate the bandwidth of a single video pulse signal and the cycle of equal amplitude high frequency pulse sequence signal? (2) What is the meaning of the circuit bandwidth? Three dB bandwidth is defined? (5 points) (4) What kinds of random noise are mainly present in general active and passive circuits, and what are their probability distributions? What are some important statistics that characterize this random noise characteristic? (5 points What is the characteristic impedance of the transmission line and the load impedance? What happens when the characteristic impedance Z_O and the load impedance Z_R are equal? (5 points) 2. Figure 1 shows a simple RC circuit