Question

Signal processing questions

1.A signal that is discrete in the time domain is what in the frequency domain?

2.When a continuous signal is sampled by ideal impulses, by what factor is its spectrum scaled?

3.The DFT of a signal consisting of 1024 samples is found. If
the spacing of the time samples is 1ms, what frequency is
associated with the frequency domain sample F_{124}?

4. When the DFT of a signal consisting of 512 real samples is
found, which frequency domain samples *must* be real?

Answer #1

1.) Explain the difference between a time domain signal and a
frequency domain signal.
2.) When would you select the frequency domain signal over the
time domain signal.

This is seismic data processing course.
Explains the following:
1. Sampling in time domain produces duplicated versions of the
signal in frequency domain.?
2. under - sampling of a signal will result in a new signal
with low frequency.?
3. Multiples are characterized by their non - linear, which
makes them difficult to recognize and eliminate in t - x domain and
F-K domain.?
thank you. ??

The continuous time signal x(t) = 2*sin
(2*π*100*t +
π/2) + sin (2*π*150*t) +
3*sin (2*π*300*t) is
sampled at 500 samples per second.
Write the mathematical expression x(n) of the sampled discrete
time signal. Show your work.
What are the discrete time frequencies obtained in
x(n)?

Discuss Fourier Transform and what effects multiplying a time
domain signal by a sinusoid (including multiple times) has on both
the time and frequency domain representations, as well as the
practical use of the method. No more than 300 Words.

what are the 3 transforms in digital signal processing
give their time & frequency variables, formula,
inverse formula and application.

The questions:
1. What type of technology Acme and Omega utilize to transform
inputs into outputs?
2. Which strategic choice (differentiation or cost leadership)
suits best to Acme? Omega? Do these companies have clear strategic
choices or do they stuck in the middle?
3. Based on all the contingencies which type of structure is
more suitable for these companies; mechanistic or organic?
please answer each question alone
The Paradoxical Twins: Acme and Omega Electronics John F. Veiga
Part! boom of...

1. Answer EITHER part (a) OR part (b). (a) A gas scrubber on an
oilrig discharged gas periodically such that an accumulation of
hydrocarbon gas nearby had occurred. A contractor welder was
dispatched to a job immediately adjacent to the area and it being a
shift change and personnel unavailable temporarily, the welder
decided to commence welding. As a consequence, an incident
occurred. Describe briefly: (i) what you imagine was the incident
including any hazards existing prior to or during...

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