A continuous time signal is also known as a/an_______.
analog signal 0%
digital signal 0%
even signal 0%
odd signal 0%
A continuous time signal is said to be symmetrical or even if it satisfies the condition, _________.
x ( t ) = x ( t/2 ) 0%
x ( t ) = x (√t ) 0%
x ( t ) = x ( 2t ) 0%
x ( t ) = x ( -t ) 0%
A discrete time signal can be best analyzed by____________.
a fourier transform 0%
a laplace transform 0%
a Z- Transform 0%
none of the above 0%
A non-periodic signal has a period ( T ) of _______.
T = ∞ 0%
T = 0 0%
T = 1 0%
T = 2 0%
A stationary random process is a_________.
finite energy signal 0%
zero energy signal 0%
infinite energy signal 0%
An analog filter is stable if the poles lie ________________.
on the R.H.S. of the S-Plane 0%
on the L.H.S. of the S-Plane 0%
inside the unit circle in the Z-domain 0%
outside the unit circle in the Z-domain 0%
Anti-aliasing filter is basically a________.
high pass filter 0%
low pass filter 0%
band pass filter 0%
band stop filter 0%
Any arbitrary signal can be expressed as the sum of two signals. These two signals must be_________.
even and odd signals 0%
periodic and non-periodic signals 0%
energy and power signals 0%
deterministic and random signals 0%
Comb Filters can be viewed as ___________.
notch filters 0%
digital resonators 0%
all pass filters 0%
mirror filters 0%
Continuous time signals have_____________.
periodic spectra 0%
discrete spectra 0%
aperiodic spectra 0%
continuous spectra 0%
DFT is obtained from DTFT by putting____________.
W = 2πK / N 0%
W = K / N 0%
W = πK / 2N 0%
W = 4πK / N 0%
Digital F.I.R. filters are so designed that they have linear phase characteristics in the _____________.
stop band 0%
pass band 0%
low pass band 0%
high pass band 0%
Digital Transmultiplexers are devices for converting ___________.
analog to digital signals 0%
digital to analog signal 0%
TDM to FDM 0%
FDM to CDMA 0%
Environmental parameters like temperature, humidity etc. change the performance of __________.
analog filters only 0%
digital Filters only 0%
Both analog and digital filters 0%
Neither analog nor digital filters 0%
For the signal x ( t ) = 3cos50πt + 10sin300πt – cos100πt , nyquist rate is________.
150 Hz 0%
300 Hz 0%
100 Hz 0%
50 Hz 0%
For the signal x ( t ) = 3cos600πt + 2cos1800πt , the folding frequency is __________.
600 Hz 0%
1800 Hz 0%
900 Hz 0%
500 Hz 0%
How many clock cycles are required by the DSP processor to execute an instruction?
One 0%
Two 0%
Four 0%
Eight 0%
How many stages of FFT algorithm are there for an 8-Point DFT?
Three 0%
Two 0%
One 0%
Four 0%
If a Z-Transform is evaluated on the unit circle at evenly spaced points only, it becomes __________.
FFT 0%
DTFT 0%
FT 0%
DFT 0%
In a Butterworth approximation for bilinear transformation, we have,
Ω= 2 / Ts tan ωc/ 4 0%
Ω= 1 / Ts tan ωc / 2 0%
Ω= 2 / Ts tan ωc / 2 0%
Ω = 1 / Ts tan ωc / 3 0%
In a Butterworth low pass filter, we get a maximally flat response of ___________.
Pass Band 0%
Stop Band 0%
Transition Band 0%
High Pass Band 0%
In DFT equation, the symbol for circularly even sequence is _________.
x (( n )) 0%
x (( n - k )) 0%
x (( -n )) 0%
x ( N-n ) = x ( n ) 0%
In DFT, a circularly folded sequence is denoted by_________.
x (( n )) 0%
x (( n/2 )) 0%
x (( 2n )) 0%
x (( -n )) 0%
In Multirate Digital Signal Processing, the sampling rate of signals __________.
is increased 0%
is decreased 0%
is either increased or decreased 0%
remains constant 0%
In order to avoid aliasing during the reduction of the sampling rate, we divide the sampling frequency by ___________.
In order to design digital filter, an important condition is that, the response of filter should ___________.
causal 0%
non-causal 0%
time-variant 0%
time-invariant 0%
Interfacing of digital systems with different sampling rates can be done efficiently by __________.
reduction of the sampling rate 0%
interpolation of the sampling rate 0%
both reduction and interpolation of the sampling rate 0%
keeping the sampling rate constant 0%
Linear predictive coding is normally used to achieve __________.
light synthesis 0%
noise synthesis 0%
phase synthesis 0%
speech synthesis 0%
MAC is used for ___________.
high speed addition 0%
high speed multiplication 0%
high speed division 0%
high speed subtraction 0%
Power signals are the signals having ________.
infinite non zero power 0%
infinite zero power 0%
finite non zero power 0%
finite zero power 0%
Quantization of a signal_____________.
reduces bandwidth requirement 0%
increases bandwidth requirement 0%
does not have any effect on bandwidth 0%
Sampling rate conversion by the rational number ( I / D = 1023 / 511 ) needs a polyphase filter with _________.
511 subfilters 0%
500 subfilters 0%
1000 subfilters 0%
1023 subfilters 0%
Signals that are statistically stationary can be better estimated with _________.
Short data record 0%
Long data record 0%
Average data record 0%
The ADSP-2100A has ____________.
no on-chip memory 0%
on-chip memory 0%
attached memory 0%
both on-chip and attached memories 0%
The ADSP-21XX family supports __________.
a 32-bit instruction word 0%
an 8-bit instruction word 0%
a 16-bit instruction word 0%
a 24-bit instruction word 0%
The aliasing problem can be better handled by the__________.
Quardature Mirror Filter (QMF) 0%
Brickwall Filter 0%
Notch Filter 0%
Digital Resonator 0%
The ALU of the ADSP 21XX family has two input ports named __________.
A and B 0%
D and E 0%
X and Y 0%
H and L 0%
The ARMA Linear Model is a __________.
non-parametric method 0%
parametric method 0%
periodogram method 0%
eigen-decomposition method 0%
The circular frequency shift property is also known as __________.
the quadrature modulation theorem 0%
the frequency modulation theorem 0%
the shift modulation theorem 0%
the circular modulation theorem 0%
The condition of periodicity for a continuous time signal can be defined mathematically as _______. (Note: Here 'To' is the fundamental period.)
x ( t ) = x ( t + 2To ) 0%
x ( t ) = x ( t + To/2 ) 0%
x ( t ) = x ( t + 4To ) 0%
x ( t ) = x ( t + To ) 0%
The condition of periodicity for a discrete time signal can be defined mathematically as ________. (Note: Here Number 'N' is the period of the signal.)
x ( n ) = x ( n + N/2 ) 0%
x ( n ) = x ( n + 2N ) 0%
x ( n ) = x ( n + N ) 0%
None of the above 0%
The Discrete Fourier Transform ( DFT ) of unit impulse function is__________.
Zero 0%
Infinity 0%
1 0%
2 0%
The finite impulse response ( F.I.R ) filters are also called_________.
recursive filters 0%
feedback filters 0%
non-recursive filters 0%
notch filters 0%
The Flanging effect is a ____________.
light effect 0%
vibration effect 0%
sound effect 0%
microwave signal effect 0%
The frequency warping effect occurs because of___________.
linear mapping 0%
frequency expansion 0%
amplitude attenuation 0%
non-linear mapping 0%
The fundamental period of signal 10sin(12πt) + 4sin(18πt) is______.
2/3 Sec 0%
1/2 Sec 0%
1/3 Sec 0%
1/4 Sec 0%
The Harvard Architecture referred to the computer architectures that used _____________.
the same data storage for instructions and data 0%
separate data storages for instructions and data 0%
no storage for instructions and data 0%
storage for instructions only 0%
The Kaiser window design is used for ____________.
butterworth filters 0%
Chebyshev filters 0%
Elliptic filters 0%
F.I.R. filters 0%
The multiplication of two DFTs is equivalent to the circular convolution of their sequences in the _____________.
frequency domain 0%
time domain 0%
Both frequency and time domains 0%
Neither frequency nor time domain 0%
The MUSIC ( Multiple Signal Classification ) method is used for ____________.
estimation of power spectrum 0%
estimation of spectral leakage effects 0%
estimation of amplitude distortion 0%
estimation of noise frequency 0%
The non-parametric methods for power spectrum estimation suffer from________.
phase distortion 0%
spectrum leakage effects 0%
amplitude distortion 0%
None of the above 0%
The overlap save method is for the ___________.
modulation of signals 0%
filtering of signals 0%
attenuation of Signals 0%
amplification of signals 0%
The parametric methods for Power Spectrum Estimation provide __________.
better phase resolution 0%
better amplitude resolution 0%
better frequency resolution 0%
better leakage effects 0%
The periodogram is _________.
not a consistent estimate of the true power density spectrum 0%
a consistent estimate of the true power density spectrum 0%
not a consistent estimate of the true energy density spectrum 0%
a consistent estimate of the true energy density spectrum 0%
The process of reducing the sampling rate by a factor D is called ___________.
Decimation 0%
Interpolation 0%
Dissemination 0%
Reduction 0%
The sampling theorem holds true for the following condition________. (Note: Here 'fs' is the sampling frequency, and 'w' is the maximum frequency of the continuous time signal x (t)).
fs < 2 ω 0%
fs > 2 ω 0%
fs < ω / 2 0%
fs > ω / 2 0%
The signal cos(0.01πn) is_________.
non-periodic 0%
periodic 0%
an analog signal 0%
None of the above 0%
The term "filter" is used to describe a ___________.
linear time variant system 0%
causal system 0%
non-causal system 0%
linear time invariant system 0%
The type-1 chebyshev filter contains __________.
all zeros 0%
all poles 0%
zeros as well as poles 0%
No poles and zeros 0%
The Z-Transform is used to analyze ____________.
continuous time signals 0%
discrete time signals 0%
random signals 0%
noise signals 0%
Thermal noise can be considered to be ___________.
white non-Gaussian noise 0%
white Gaussian noise 0%
flicker noise 0%
transit time noise 0%
What is the function of a Fourier Transform?
It converts the time domain signal into the frequency domain signal 0%
It converts the frequency domain signal into the time domain signal 0%
It converts the time domain signal into the phase domain signal 0%
It converts the frequency domain signal into the phase domain signal 0%
Which of the following is a linear system?
y ( n ) = n x ( n ) 0%
y ( n ) = e x (n) 0%
y ( n ) = a x ( n ) +6 0%
y ( n ) = cos x ( n ) 0%
Which of the following is a non-causal system?
y ( n ) = x ( n ) + x ( n - 2 ) 0%
y ( n ) = e x (n) 0%
y ( n ) = cos x ( n ) 0%
y ( n ) = x ( n ) + n x ( n - 1 ) 0%
Which of the following is a time invariant system?
y ( n ) = x ( n ) + n x ( n - 1 ) 0%
y ( n ) = y ( n - 4 ) + x (n - 4) 0%
y ( n ) = x ( 2 n ) 0%
y ( n ) = x (- n ) 0%
Which of the following systems is unstable?
y ( n ) = cos [ x ( n ) ] 0%
y ( n ) = x ( - n ) 0%
y ( n ) = x ( 2 n ) 0%
None of the above 0%
Which one of the following is a static system?
y ( n ) = x ( n2 ) 0%
y ( n ) = x ( n ) - 3 x (n - 2) 0%
y ( n ) = x ( - n ) 0%
y ( n ) = n x ( n ) 0%
Which one of the following is not a register associated with the Program Sequencer?
Arithmetic Status Register (ASTAT) 0%
Stack Status Register (SSTAT) 0%
Mode Status Register (MSTAT) 0%
System Register 0%
Which one of the following is not a universal register of the ADSP21XX family?
Data Address generator (DAG) 0%
Program Sequencer 0%
System Register 0%
Multiplier Results (MR) 0%