ELEC 310, 2017
Chapter 4 Assignment Solution
1. Consider the cosine wave:
x(t) = 10 cos(880t + )
The sampled version of this wave is given by:
x[n] = 10 cos(880nTs + )
Assuming Ts = 0.1 ms:
(a) How many samples will be taken in one period of the wave?
Ans
ELEC 310, 2017
Chapter 5 Assignment Soution
1. If the impulse response h[n] of an FIR filter is:
h[n] = 7[n] + [n 3] 5[n 4]
write the difference equation for the FIR filter.
Answer:
We can express the filter coefficients as the vector:
n
h[n]
0
7
1
0
2
0
ELEC 310, 2017
Chapter 6 Assignment Solution
1. An FIR has:
y[n] = x[n] + x[n 1]
(a) Determine the output when the input is given by:
x[n] = ej0.1n + ej0.4n
Answer
From the difference equation, we have the frequency response as:
H(ej b ) = 1 + ej b
We hav
ELEC 310, 2017
Chapter 2 Assignment Solution
1. Assume a sinusoidal signal has the following properties:
Quantity
Peak amplitude
Period
Initial value
Symbol
A
T
x(t = 0)
Value
10 V
100 ms
5V
Express this signal as a cosine function and as a phasor.
Answer
ELEC 310, 2017
Chapter 3 Assignment Solution
1. A signal x has the two-sided spectrum shown in Fig. 1.
Figure 1: Problem 1.
(a) Write an equation for x(t) as a sum of cosines.
x(t) = 11 + 14 cos(100t /3) + 8 cos(350t /2)
(b) Is x(t) a periodic signal? If
ELEC 310, 2017
Chapter 4 Assignment
1. Consider the cosine wave:
x(t) = 10 cos(880t + )
The sampled version of this wave is given by:
x[n] = 10 cos(880nTs + )
Assuming Ts = 0.1 ms:
(a) How many samples will be taken in one period of the wave?
(b) Now cons
ELEC 310, 2017
Chapter 5 Assignment
1. If the impulse response h[n] of an FIR filter is:
h[n] = 7[n] + [n 3] 5[n 4]
write the difference equation for the FIR filter.
2. Evaluate the expression
G=
12
X
(9[n 3] 9[n 4]) ej0.5n
n=0
3. The unit step function u
ELEC 310, 2017
Chapter 6 Assignment
1. An FIR has:
y[n] = x[n] + x[n 1]
(a) Determine the output when the input is given by:
x[n] = ej0.1n + ej0.4n
(b) Explain why the output can be written as the sum of two complex exponential signals:
y[n] = A1 ej1 ej b
ELEC 310, 2017
Chapter 3 Assignment
1. A signal x has the two-sided spectrum shown in Fig. 1.
Figure 1: Problem 1.
(a) Write an equation for x(t) as a sum of cosines.
(b) Is x(t) a periodic signal? If so, determine the fundamental period and its fundament
ELEC 310, 2017
Chapter 2 Assignment
1. Assume a sinusoidal signal has the following properties:
Quantity
Peak amplitude
Period
Initial value
Symbol
A
T
x(t = 0)
Value
10 V
100 ms
5V
Express this signal as a cosine function and as a phasor.
2. Consider the
Mech 295 Formula Sheet - Thermodynamics
total energy, mass:
Closed systems (m = const):
1st law,
m dV
,
V
general form:
dE
Q W ,
dt
E2 E1 Q12 W12 ,
reversible proc.:
dU
dV
Q p
,
dt
dt
U 2 U 1 Q12 pdV
specific work / heat in rev. proc.:
w12
W12
m
2
1
2
PROBLEM 7.3
I
w: A rtvon-blc power cycle K and an u'rnnnfb'e cycle I operae be+wuu
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ANALISIS PENERAPAN SISTEM INFORMASI AKUNTANSI DALAM
MENUNJANG EFEKTIVITAS PENGENDALIAN INTERNAL PEMBIAYAAN
MUSYARAKAH PADA PT.BANK SYARIAH MANDIRI KANTOR CABANG
UTAMA DEPOK
Siti Nurlola Hidayat
Dr. Herry Susanto, SE., MM
Jurusan Akuntansi, Fakultas Ekonom
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