signals systems and transforms

understanding of this article.Summarize:The nature of the linear system.The linear system H can be expressed as a matrix (h), so it can be understood from two angles:The system output Y can be regarded as the weighted average of the matrix H, and the weight is x.The system output Y can also be seen as a sequence of H's line vectors and the inner product of X.Time-invariant system (also called shift-invariant system)A system input x yesterday, today input x, tomorrow input x, any time input x wi

discrete systems 1, 0 states, 0 inputs, full response2, impulse response, step response3, a demo%ex_6clear all;n=0: -; x=cos (n*pi/3); a=[1,0.95,0.9025];b=[1/3,1/3,1/3];yi=[2,3];xi=0; xic=filtic (b,a,yi,xi);%Y1=filter (B,a,zeros (1, Length (n)), xic); Y2=filter (b,a,x); Y3=filter (b,a,x,xic); figure (1) Subplot (3,1,1), stem (n,y1), title ('0 Input Response') Subplot (3,1,2), stem (n,y2), title ('0 Status Response') Subplot (3,1,3), stem (n,y3), titl

First, the signal expression 1. Waveform-to-function expressions Continuous signals generally have continuous function f (t) and waveform (function image) Answer: Discrete signals typically have sequence F (t) and sequence images Answer 2. A known function draws its image Properties of singular function 1. Step function: Switching function, switch in the circuit,

A good article. I hope everyone will like it. I really appreciate the last few words! Reprinted: Introduction to Signals and Systems-Lesson 1 What is convolution? What is Fu Liye transformation? What is Laplace transformation introduction? ---------------------------------------- Many of my friends, like me, have learned a bunch of signal courses for electronics majors in Engineering. I have not learned a

Introduction to Signals and Systems Lesson 1 What is convolution? What is Fourier Transform? What is Laplace transform? Introduction ---------------------------------------- Many of my friends, like me, have learned a bunch of signal courses for electronics majors in Engineering. I have not learned anything. I took the test on the formula and then graduated. Let's talk about the question "What is the use o

Make up your mind to complete this signal and system! This person's name I typed n times on the keyboard... Alan v. alppenhiem Two major signal types: Discrete and continuous Signals The left and right sides are typical continuous and discrete periods. Note the parity of the Signal Functions Even: X (-T) = x (t) Odd: X (-T) =-x (t) The discrete form of the unit step function above. below is the discrete form of the Unit Impulse Function (Unit