ECEN 487 QUIZ 9
NAME:_
3. What window type would you choose for a bandpass filter design if your primary concern is rejecting an interfering source that is known to be very close to your desired passb
ECEN 487 QUIZ 8
NAME:_KEY_
1.
Consider the four impulse response plots below.
(a)
(b)
(c)
(d)
For each magnitude frequency response on the over side, indicate which impulse response above produced it,
ECEN 487
QUIZ 12
NAME:_
1.
x[n] is a white noise random process with variance 2 n . As shown in the
x
figure below, y[ n ] = h[ n ] * x[ n ] where h[n] is a filter impulse response with a
correspondin
ECEN 487
QUIZ 1
NAME:_KEY_
1.
x[ n] is a sequence with z-transform X ( z) that has poles at z = 0.5 and z = 0.3 j , and
a single zero at z = 2 .
a) Is there an R.O.C. choice for which x[ n] is simulta
ECEN 487
QUIZ 6
NAME:_KEY_
1.
You are a DSP engineer for Hewlett Hackard Hearing Helpers Corporation. Your
assignment is to design the digital implementation of a frequency selective emphasis
filter i
ECEN 487 QUIZ 4
NAME:_
1.
You are a DSP engineer for Sony Corporation. Your assignment is to design the digital portion of the sample rate conversion function in the next Bluray DVD player. The Bluray
ECEN 487 QUIZ 3
NAME:_KEY_
1.
Use Caucheys residue theorem to compute the inverse z transform of
X ( z) = ( z 2)( z + j 0.15)( z (z +
2 )( z 3 j
)
for n > 0 only. The desired region of
e )( z + 7)( z
ECEN 487 QUIZ 1
NAME:_KEY_
1.
Name one significant advantage of discrete-time processing over an analog implementation for a function that could be implemented by either method.
Ease of system modific
ECEN 487 QUIZ 11
NAME:_KEY_
1.(10) What is the frequency causal analytic signal, xa[n], which corresponds to the real signal x[n] = a sin 0 n + b cos 1n , o 1? Draw a block diagram to show how xa[n] c
E CEn 487 Digital Signal Processing Laboratory
Lab 1
Introduction to the Software Development
Environment and Signal Sampling
D ue Dates
This is a three week lab. All TA check off must be completed be
ECEn 487 Digital Signal Processing Laboratory
2012 Lab 2
Finite Impulse Response Filtering
D ue Dates
This is a three week lab. All TA check off must be completed by Tuesday February 21, or the
lab wi
ECEn 487 Digital Signal Processing Laboratory
Lab 3
FFT based Spectrum Analyzer
Due Dates
This is a three week lab. All TA check off must be completed prior to the beginning of class on
the lab book s
PROCEEDINGS O F THE IEEE, VOL. 6 6 , NO. 1 , JANUARY 1978
51
On the Use of Windows for Harmonic Analysis
with the Discrete Fourier Transform
FREDRIC J . H ARRIS,
A hmw-This Pw!r mak= available a conci
ECEN 487
QUIZ 1
NAME:_KEY_
1.
List at least two methods that might be used to compute the z-transform of some
sequence x[n].
1. Table look-up.
2. Direct sample-by-sample (term-by-term) sequence transf
ECEN 487
QUIZ 2
NAME:_KEY_
1.
a) Define a sequence x[ n] with z-transform X ( z) = lncfw_X ( z) , with an X ( z) that has
poles at z = 1.5 and z = 3 j , and a single zero at z = 1 / 4 . Is there an R.
ECEN 487
QUIZ 3
NAME:_KEY_
1.
Use Caucheys residue theorem to compute the stable inverse z transform of
X (z) =
!
( z " 2 )( z " # )
for n > 0 only.
( z " )( z " 5 )( z + 7 )( z + 3)
1
2
For n > 0 the
ECEN 487
QUIZ 4
NAME:_
1.
a) You are a DSP engineer for Motor Roller Wireless Communications Inc. Your
assignment is to design the digital portion of the sample rate conversion function
to convert sam
ECEN 487
QUIZ 5
NAME:_
1.
Let h[n] be the finite length impulse response for a lowpass filter used in the antialiasing stage of a decimator. The decimation rate is M = 3.
a) Specify the values of the
ECEN 487
QUIZ 6
NAME:_KEY_
1.
You are an engineer working for Yaesu Electronics, Amateur Radio Division. Your
assignment is to design the digital implementation of a narrowband bandpass filter
for CW
ECEN 487
QUIZ 8
NAME:_
1.
Consider the following two rational polynomial system functions:
1 4 z1
z1 4
, H 3 ( z) =
.
H 2 ( z) =
1 1 z1
1 1 z1
3
3
a) Which of them is minimum phase? Why?
H 3 ( z) is m