(New page: ===Course Outline=== I. Introduction *Review of course policies *Why linear systems theory is important II. Signals [OW 1.0-1.4] *Types - continuous time, discrete time, and digital [...)
 
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===Course Outline===
 
  
I. Introduction
 
*Review of course policies
 
*Why linear systems theory is important
 
II. Signals [OW 1.0-1.4]
 
*Types - continuous time, discrete time, and digital [OW 1.0-1.1]
 
*Transformations of the independent variable [OW 1.2]
 
**Time reversal
 
**Time delay
 
**Time scaling
 
*Signal Properties
 
**Periodic signals
 
**Even/odd signals
 
**Energy
 
** Power
 
** Average value
 
*Exponential Signals [OW 1.3]
 
**Continuous time
 
**Discrete time
 
*Impulse and step functions [OW 1.4]
 
**Discrete time
 
***Relationship between impulse and step functions
 
***Representation of DT signals with DT impulses (Sifting Prop.)
 
**Continuous time
 
***Definition of CT impulse [OW 2.5]
 
***Relationship between impulse and step functions
 
***Representation of CT signals with CT impulses (Sifting Prop.)
 
III. Systems [OW 1.5-1.6]
 
*Input/output models for systems [OW 1.5]
 
*System Properties [OW 1.6]
 
**Review of formal logic [From notes/handouts]
 
**Continuous time and Discrete time systems
 
**Causal and noncausal systems
 
**Memory and memoryless systems
 
**Linear and nonlinear systems
 
**Time varying and time invariant systems
 
**Stable and unstable systems
 
**Formal definitions of system properties
 
IV. Linear Time-Invariant Systems [OW 2.0-2.4]
 
*Time domain analysis of linear systems [OW 2.0]
 
**Discrete time systems [OW 2.1]
 
***impulse function and impulse response
 
***discrete time convolution
 
**Continuous time [OW 2.2]
 
***impulse function and impulse response
 
***continuous time convolution
 
*Properties for LTI systems [OW 2.3]
 
**Memoryless
 
**Causal and anticausal
 
**Stable
 
*LTI analysis of linear differential equations [OW 2.4]]
 
*Complex exponential inputs to LTI systems [OW 3.2]
 
V. Frequency Analysis
 
*Orthonormal Tranforms [From notes]
 
**General analysis of orthonormal transformations
 
**Functions as vectors
 
**Innerproducts on functions
 
**Parseval’s theorem for orthonormal transforms
 
*Continuous time Fourier series (CTFS) [OW 3.0-3.3,3.5,3.8-3.9]
 
**Derivation as orthogonal transform [OW 3.0-3.3]
 
**CTFS examples
 
**Properties of CTFS [OW 3.5]
 
**LTI system analysis using CTFS [OW 3.8,3.9]
 
*Overview of transforms we will cover [From notes and handout]
 
*Continuous time Fourier transform (CTFT) [OW 4.0-4.8]
 
**Derivation of tranform [OW 4.0-4.1]
 
**The convolution property and LTI systems [OW 4.4]
 
**CTFT properties [OW 4.3]
 
**Transform pairs for aperiodic signals [See OW 4.6]
 
**CTFT of periodic functions [OW 4.2]
 
**Transform pairs for periodic signals [See OW 4.6]
 
**Impulse train sampling [OW 7.1.1]
 
**Systems characterized by linear differential equations [OW 4.7]
 
*The DFT [OW 3.6-3.7]
 
**Derivation as orthogonal transform [From notes and OW 3.6]
 
**Example transforms
 
**DFT properties and circular convolution [OW 3.7]
 
*Discrete time Fourier transform (DTFT) [OW 5.0-5.1,5.3-5.6,5.8]
 
**Tranform definition [OW 5.0,5.1]
 
**DTFT properties [OW 5.3]
 
**Transform pairs [See OW 5.6]
 
**The convolution property and LTI systems [OW 5.4]
 
**Systems characterized by linear difference equations [OW 5.8]
 
VI. Sampling and reconstruction [From Notes, OW Chapter 7]
 
*Overview of sampling systems [OW 7.0]
 
*Sampling
 
**Relationship between CTFT and DTFT
 
**Aliasing and the Nyquist frequency
 
*Reconstruction
 
**Relationship between DTFT and CTFT
 
**Aliasing and reconstruction filters
 
**Zero order sample and holds
 
VII. (Didn’t get to this) The Z-Transform [OW 10.0-10.7]
 
*Definition of Z-transform
 
*Region of convergence
 
*The inverse Z-transform
 
*More on the Z-transform
 
**Left and right hand signals
 
**Stable and unstable signals
 
**Causal and anticausal signals
 
**Z-transform properties
 
*Analysis of DT systems
 
**FIR systems
 
**IIR systems
 
**Stability analysis
 
 
[OW ] - Refers to Oppenheim and Willsky text
 

Latest revision as of 15:58, 22 November 2009

Alumni Liaison

Sees the importance of signal filtering in medical imaging

Dhruv Lamba, BSEE2010