CET730 Digital Filter Design and Spectrum Analysis

Course Provider

School of Electrical and Electronic Engineering (EEE)



Academic Unit



The first objective is to introduce the concept of digital filter specifications and approximation of achieving the designed filter performance for various  types of digital filters. The second objective is spectrum analysis for both  deterministic and random signals. It will discuss how to use Fourier  transform to obtain the signal information in the frequency domain and to  understand the transform outputs. Power spectrum estimation will also be  taught for tackling random signals.

This course is part of:

- Graduate Certificate in Signal and Media Processing
- FlexiMasters in Signal and Media Processing

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The learner will be able to design the desired digital filters with proper performance at the minimized computational complexity. The frequency  domain information can be utilized for better understanding and using the features of both deterministic and random signals in various applications.


Various types of digital filters and their properties are discussed. Filter specifications for a particular application are explained. The methods of  generating filter coefficients are also provided. For spectrum analysis, discrete Fourier transform is studied. Its computational complexity and  limitations are to be discussed. For random signals, non-parametric approaches and eigen-analysis-based algorithms for power spectrum  estimation will be covered.

For engineers who wish to upgrade their technical knowledge and skills in the area of digital signal processing, which can be  used in the Infocomm industry to aid in filtering and in analyzing any kind of signal. 

Standard Course Fee: S$1,620

SSG Funding Support

Course fee payable after SSG funding, if eligible under various schemes

Fee BEFORE funding & GST

Fee AFTER funding & 8% GST

Singapore Citizens (SCs) and Permanent Residents (PRs) (Up to 70% funding)



Enhanced Training Support for SMEs (ETSS)


SCs aged ≥ 40 years old
SkillsFuture Mid-career Enhanced Subsidy (MCES)
(Up to 90% funding)

• NTU/NIE alumni may utilise their $1,600 Alumni Course Credits. Click here for more information.

Read more about funding
CET700 Signal Space and Modulation1
CET701 Error-Correction Coding1
CET702 Spread-Spectrum Communication System1
CET731 Multirate Digital Signal Processing1
CET732 Linear Prediction and Optimal Linear Filters1
CET733 Digital Filter Implementation and Analog-Digital Conversion1
CET734 General Purpose Digital Signal Processor1
CET735 Algorithms and Architectures for Hardware and VLSI Signal Processing1
CET736 Multimedia Compression and Processing1
CET737 Multimedia Networking1
CET738 Multimedia Systems and Applications1
CET739 Image and Video Fundamentals1
CET740 Image and Video Coding Principles1
CET741 Image and Video Processing Techniques and Error Control1

Listed courses are:

  • Credit-bearing and stackable to Graduate Certificate in Signal and Media Processing (total 9AUs) and FlexiMasters in Signal and Media Processing (total 15AUs) 
  • SSG funded and SkillsFuture Credit approved.