DE2.3 - Electronics 2

Imperial College London - Dyson School of Design Engineering

EA 2.3 Electronics 2 (11 Jan to 23 Mar 2018)

LEARNING OUTCOMES

On successful completion of the module, students should be able to:

analyse and inteprete signals in both time and frequency domains;

analyse and interprete signals in both analogue and digital forms;

use Matlab or similar tools to perform analysis of signals and systems;

extract useful information from signals through analysis, filtering and other form of signal conditioning;

understand system behaviour in terms of poles and zeros and perform analysis and prediction of such systems; employ principles of feedback to improve various performance parameters in an electronic system;

analysis simple feedback systems to establish stability in the system;

design and tune a proportional-integral-differential (PID) controller;

implement both signal processing and control algorithms in an standalone, embedded electronic system using real-time programming techniques.

RECOMMENDED TEXTBOOKS

BP Lathi, Signal Processing and Linear Systems, 27 Feb 2003 (£31 used)
C-T Chen, Signals and Systems: A Fresh Look (US$22 from amazon.com)
Schaum’s Outline of Feedback and Control Systems (US$14.90 from amazon.com)

LECTURE NOTES

Week	Lectures	Resources
1 (11 Jan)	Lecture 1 Time domain view of signals (notes x1, x2) recording Lecture 2 Frequency domain view of signals (notes x1, x2) recording	Report on DE1.3 (PDF) Course Planning Doc (PDF) Vclip on discrete vs continuous time signals Vclip on frequency domain view of signals
2 (15 Jan)	Lecture 3 Fourier Transform (notes x1, x2) recording part 1 & 2	Vclip on Fourier transform and Fourier series
2 (18 Jan)	Lecture 4 Sampling (notes x1, x2) recording Tutorial 1 - Lab 1: Pyboard & Matlab (slides) recording	Vclip on the Sampling Theorem and aliasing
3 (22 Jan)	Lecture 5 DFT & Windowing (notes x1, x2) recording Lecture 6 Systems & Laplace Transform (notes x1, x2) recording	Vclip on How DFT works Vclip on windowing
3 (25 Jan)	Lecture 7 Step Response & System Behaviour (notes x1, x2) recording Tutorial 2 - Lab 2: System Characterisation (slides) recording	Vclip on Tacoma bridge collapse
4 (29 Jan)	Lecture 8 Frequency Response of Systems (notes x1, x2) recording Lecture 9 IMU - Example of Signals & Systems (notes x1, x2) recording	Vclip on accelerometer Vclip on gyroscope
4 (1 Feb)	Lecture 10 Discrete time signals (notes x1, x2) recording
5 (5 Feb)	Lecture 11 Discrete time systems (notes x1, x2) recording Tutorial 4 - Lab 4: Motors & Interrupts recording	Vclip on Hall Effect Sensor
5 (8 Feb)	Lecture 12 Motor Drive, Polling, Interrupt (notes x1, x2) recording Lecture 13 Revision lecture: Signals & Systems (notes x1, x2) recording
7 (20 Feb)	Lecture 14 Team Project & Beat Detection (notes x1, x2) recording	Vclip on Milestone 3 Vclip on Milestone 4
7 (22 Feb)	Lecture 15 Impulse Reponse & FIR Filter (notes x1, x2) recording Tutorial 5 - Problem Sheets 1 & 2 recording
9 (5 Mar)	Lecture 16 Introduction to Feedback Control Part 1 (notes x1, x2) recording Lecture 17 Introduction to Feedback Control Part 2 (notes x1, x2) recording	Vclip on "What is contro?" Vclip on "Control concepts"
9 (8 Mar)	Lecture 18 Properties of Feedback Control (notes x1, x2) recording Tutorial 6 - Problem Sheets 1 & 2 recording	Vclip on "Introduction to PID Control"
10 (12 Mar)	Lecture 19 PID Controller (notes x1, x2) recording Tutorial 7 - Putting things together recording	Vclip on "Example on PID Control" Vclip on "Tuning a PID controller" (long)
10 (15 Mar)	Lecture 20 Revision Lecture (notes) recording

TUTORIAL PROBLEM SHEETS

Problem Sheet 1 (solutions)
Problem Sheet 2 (solutions)
Problem Sheet 3 (solutions)
Problem Sheet 4 (solutions)
Problem Sheet 5 (solutions)
Problem Sheet 6 (solutions)

SAMPLE EXAMINATION PAPER
Past Examination Paper 2017 (solutions)

LABORATORY SESSIONS

Lab Pairing (PDF)
Lab Oral Guidelines and Schedule (PDF)

Experiment	Useful Resources
Lab 0 - Introduce Matlab (home)	Guidelines on using electronic logbook (PDF)
Lab 1 - Signal Processing (17 Jan)	PyBench.m (zipped), PyBench Methods plot_spec_dB.m (zipped) Sound files: two_drums.wav, bass.wav, guitar.wav Staying Alive music: short, full Fourier series coefficients of waveforms (GIF) Pybench board: photo, schematic, PCB layout Solutions to Lab 1 (zip file) MicroPython Windows Setup instruction Windows 7 or 8 Pyboard Driver (zipped)
Lab 2 - System characterisation (24 Jan)	Bulb Box schematic diagram (PDF) Solutions to Lab 2 (zipped)
Lab 3 - IMU & OLED Display (29 Jan)	InvenSense MPU-6050 IMU data (PDF) Balance Filter article by Colton (PDF) OLED Display (link) IMU_3D.m (zipped) Solutions to Lab 3 (zipped)
Lab 4 - Motor & Interupts (7 Feb)	TB6612 Motor Driver datasheet Solutions (zipped)
Lab 5 - Team Project 1 (21 Feb)	Solution: lab5_ex1 Music file: bgs.wav (short) BeeGees.wav (long) hotstuff.wav survive.wav Buffer program (buffer.py.zip)
Lab 6 - Team Project 2 (28 Feb) (unsupervised - no notes)	motor.py.zip (package to drive motors) mic.py.zip (package to get instantaneous energy on microphone signal using interrupts)
Lab 7 - Team Project 3 (7 Mar)	Basic beat detection program in Micropython (beat_detect_0.py.zip) version 1.4
Lab 8 - Putting things together (14 Mar)

Team Project Links (Dancing Segway)

Team Project Assessment Guideline & Marksheet
Team Project Specification
Team Assignment

Datasheet of Components on PyBench Board

Pyboard documentations
OLED display module (Adafruit 938)
Microphone and amplifier (MAX9813)
IMU - accelerometer & gyroscope (MPU6050)
Motor driver chip (TB6612)
BLE to UART module (Adafruit UART friend)

Micropython

Main Micropython website
Pyboard Quick Reference
Tutorials on how to use the Pyboard
Micropython Libraries

Other Useful Resources

Learn Python the Hard Way
Colour codes and preferred values for resistors

This page is maintained by Peter Cheung
Last updated: 15 March 2018