信号与图像处理基础 Introduction 中国科学技术大学自动化系 曹洋
University of Science and Technology of China 信号与图像处理基础 中国科学技术大学 自动化系 曹 洋 Introduction
信号与系统：Signals and Systems Signal:a function carrying information Describe a system (physical,mathematical,or computational)by the way it transforms an input signal into an output signal signal signal system in out 7
信号与系统：Signals and Systems • Signal: a function carrying information • Describe a system (physical, mathematical, or computational) by the way it transforms an input signal into an output signal 7
信号与系统：Signals and Systems Signal:a function carrying information Describe a system (physical,mathematical,or computational)by the way it transforms an input signal into an output signal signal signal system in out 8
信号与系统：Signals and Systems • Signal: a function carrying information • Describe a system (physical, mathematical, or computational) by the way it transforms an input signal into an output signal 8
Example System:水箱 Formulate a mathematical description of this system. r ro(t) r1(t) What determines the leak rate? 9
Example System: 水箱 Formulate a mathematical description of this system. 9 What determines the leak rate?
Check yourself The holes in each of the following tanks have equal size. Which tank has the largest leak rate r1(t)? 2 3. 4. 10
Check yourself 10