Department of Electrical Engineering and Computer Science 6.003: Signals and Systems-Fall 2003 Final Exam Tuesday, December 16, 2003 Directions: The exam consists of 7 problems on pages 2 to 33 and additional work space on pages 34 to 37. Please make sure you have all the pages. Tables of Fourier series properties, CT and DT Fourier transform

1. to know the transmission media of data signals, the structure of full-duplex data transmission system and its peration and the coding of data signals 2. to understand the main idea and

Handout 18: Dual-input describing functions Eric Feron April 5,2004 Dual-input describing functions are for mixed signals(sinusoid small constant signal) Approximating non-constant signals with constant ones

上海交通大学：《信号与系统 Signals and Systems（B类）》教学资源_EI210 Lecture Notes Chapter 1（Part II）Signals and Systems

上海交通大学：《信号与系统 Signals and Systems（B类）》教学资源_EI210 LECTURE NOTES Chapter 1（Part I）Signals and Systems

第一节 Section 1 信号传递途径概述 第二节 受体感受信号 Section 2 perception of signals by receptors 第三节 跨膜信号传递 Transmembrane signal transduction 第四节 胞内信号的转导 Section 4 transduction of signals inside cells

4.1 Conflicts of the traffic at an intersection 4.2 Traffic Signals 4.3 Traffic Controller 4.4 Installation of traffic signals at intersection 4.5 Functions of Monitoring System 4.6 Traffic Detection and Data Processing 4.7 Traffic Detection Equipment 4.8 Environment detection 4.9 System Structure of Monitoring Center

◼ Introduction ◼ Discrete-time signals ◼ Discrete-time systems ◼ Time-domain characterization of LTI discrete-time systems ◼ Digitalization of Analog Digital

Transform-Domain Representation of Discrete-Time Signals Three useful representations of discrete-time sequences in the transform domain: Discrete-time Fourier Transform (DTFT) Discrete Fourier Transform (DFT) z-Transform

Time-Domain Representation Signals are represented as sequences of numbers, called samples Sample value of a typical signal or sequence denoted as x[n] with n being an integer in the range x[n] defined only for integer values of n and undefined for non-integer values of n