The University of Sydney
School of Electrical & Information Engineering
ELEC5512
Assignment 1
Due: 17:00, Sunday, August 28, 2016
1. Given the relation:
! = C2
3
4
(a) Derive an expression for the pha
PROJECT PROPOSAL
Background:
Compared with battery-based wireless UAV which suffers from poor endurance, generally 20-30
minutes is tops, the tethered UAV could almost fly forever because it can be to
PROJECT PROPOSAL
Title: Optical fibre applied in Tethered UAV
Background:
Compared with battery-based wireless UAV which suffers from poor endurance, generally 20-30
minutes is tops, the tethered UAV
Tutorial 2 Solutions
1. b
2. d
3. From Tutorial 1
T
L
n1
1
n2
=
n1
c
=
n21
n2 c
n2
1
n1
n21
n2 c
=
n2 n1
n1
n2
n2 n1
T
= 1
n1
L
nr
2c
2n2 cT
Since N A = n1 2 N A =
.
L
T
= 10 ns/km and n2 = 1.45 we ge
Tutorial 5 Solutions
1.
/
Eo1
/
E o1
E i1
E i1
l
l
L
L
L
/
Eo2
/
E i2
E o2
E i2
Since the directional couplers are 3-dB couplers, we can write:
0
Eo1
0
Eo2
0
Ei1
!
=
ejL
=
ej`
2
1
j
j
1
!
0
Ei2
Eo1
=
Tutorial 6 Solutions
1. The relationship between the input and output signals is given by
Eo1
!
=e
Eo2
jl
cos l
j sin l
j sin l
cos l
!
!
Ei1
.
Ei2
(1)
Equation (1) can be expanded to obtain the follo
Tutorial 1
1. Exercise in Page 10 of the notes.
2. Exercise in Page 18 of the notes.
3. You have a single-moded fiber at 850 nm, and a light source with a bandwidth of 1
nm. The dispersion of the fibe
Tutorial 4
1.
Derive the power transfer function of the Fabry-Perot Filter.
Show that the resonant frequncies fn of a Fabry-Perot cavity satisfy fn = f0 + nf , where n is an
integer, for some xed f0 a
Tutorial 2
1. How is LED output modulated?
a) externally by varying current delivered to an external modulator
b) directly by varying drive current
c) directly by varying voltage applied to an externa
Tutorial 1 Solutions
1.
n2
c
n1
n2
L
` = The length of longest ray
L = The length of the shortest ray
Based on the geometrical considerations we can write:
L
L
n2
=
where sin c =
.
cos
sin c
n1
c
The
Tutorial 3
1. What is present in a digital receiver that is not present in an analog receiver?
a) Nothing
b) A detector
c) Thresholding and retiming circuits
d) Amplification circuits
e) Wavelength di
Tutorial 4 Solutions
1.
Ei
REie
1
-jl
2
2
R Eie
E out
-2jl
3
l
We have waves that make 1 pass, 3 passes, 5 passes,. . . through the cavity before leaving the second
mirror. Adding up the contributions
Tutorial 2 Solutions
1. b
2. d
3. From Tutorial 1
T
L
n1
1
n2
=
n1
c
=
n21
n2 c
n2
1
n1
n21
n2 c
=
n2 n1
n1
n2
n2 n1
T
= 1
n1
L
nr
2c
2n2 cT
Since N A = n1 2 N A =
.
L
T
= 10 ns/km and n2 = 1.45 we ge
Tutorial 3 Solutions
1. c
2. c
3.
(a) Since the fiber has zero dispersion at 1310 nm, the link is loss limited.
(b) BER = 0.5eM where M is the average number of photons received during a 1 bit. For BE
ELEC3404 Tutorial 4 - Solutions
Semester 1, 2016
Question 1
Solution:
a)
i. The maximum average output power, PL,avg , given by:
PL,avg =
Vo2
2RL
(1)
is found by finding the maximum output voltage, Vo
3. For the following circuit what topology does the feedback represent? Find A, ,
Af, Rin and Rout.
Answer: Series-Shunt (Voltage-in, voltage-out)
R11 = R1/R2
R22 = R1 + R2
A=
VC1 V 'o (RC1 / RB 2 / r
The University of Sydney
School of Electrical and Information Engineering
ELEC5512 Optical Networks
Unit of Study Information
Aim
This unit builds upon the fundamentals of optical communications intro
Lecture Schedule
Week
25/07
01/08
08/08
15/08
22/08
29/08
05/09
12/09
19/09
26/09
03/10
10/10
17/10
24/10
Topic
Tutorial
Introduction
No
Fiber-optic communication systems
No
Enabling Technologies I
Ye
Information Engineering
The University Of Sydney , School of Electrical and
STUDENT PLAGIARISM: COURSEWORK POLICY AND PROCEDURE
COMPLIANCE STATEMENT
INDIVIDUAL / COLLABORATIVE WORK
I/W e certify tha
ELEC5211Powersystemdynamicsandcontrol
Homework Module 1
Uselibraryorinternettocollectinformationandanswerthefollowingquestions:
1. Make a comparison on advantages and disadvantages in using AC or
Elec3404 Tutorial 1: Introduction and revision
Op-amps: Ideal and non-ideal
The first computers were analog. They used opamps to perform mathematical
calculations.
1. Consider the op-amp circuit in Fi
Elec3404 Tutorial 2- Solutions part 2
1. Design a common source amplifier with VDD = 5V, Vth = 1.5V, and knW/L =
1mA/V2.
a. Draw the circuit model including gate bias resistors, source and drain bias
Elec3404 Tutorial 2- Solutions
1. Refer to the circuit drawn in Figure 1. The emitter current source IE is 2mA. The
voltage supply is dual rail +/- 12V.
a. Design the bias resistors for the circuit to
The University of Sydney
School of Electrical & Information Engineering
ELEC5512
Assignment 2
Due: 4:00 pm, Sunday October 15, 2017
1. A very simple line code used in the early data networks is called
Elec3404 Tutorial 1: Introduction and revision
Large Signal BJTs:
5. For the circuit in Figure 4. Find all the node voltages and collector current, Ic.
VB=9V, Vcc = 20 V, RC = 5 k, RE = 4 k and = 100
The University of Sydney
School of Electrical & Information Engineering
ELEC5512
Assignment 1
Due: 16:00, Sunday, September 3, 2017
1. Given the relation:
1
= 2 3
(a) Calculate the phase velocity.
(2
Lecture 7
Application Layer
ELEC 3506
Data Communications and Internet
Dr Suranga Seneviratne
Data61 / CSIRO
Based on slides by Dr Kumudu Munasinghe, Dr Arik Friedman, Dr
Olivier Mehani
ELEC3506 Data
ELEC 3404 Tutorial 5
1. An op-amp circuit is shown below. It has open-loop parameters rin = 1M, rout =
100, Ao = 105 and is connected as a non-inverting amplifier with R1=10k and
R2=50k. What kind of
Question 4
Solution:
a) Since gain of amplifier is 1, the maximum VI is approximately the maximum output voltage
Vo = Vcc = 20V.
b)
PL =
=
Vo2
2RL
(9)
202
= 16.7W
2 12
c)
=
PL
PS
PS = 2Vcc Ic,avg
Reca