Assume we have a 1D print pattern with a resolution (i. e., spatial sampling frequency) of 120 dots per cm,
which equals approximately 300 dots per inch (dpi) and a total signal length of N= 2800 samples. Calculate the
i. Sampling interval [2]
ii. Physical signal length [1]
iii. The fundamental frequency of this signal (again implicitly assumed to be periodic) [1]
iv. Maximum frequency that can be represented by this signal without aliasing [2]
v. A 1D optical scanner for sampling film transparencies is supposed to resolve image structures
with a precision of 3,000dpi. What spatial distance (in mm) between samples is required such
that no aliasing occurs?
Answers: 1
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Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x, y,t)along the plate at any time t. b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax
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Assume we have a 1D print pattern with a resolution (i. e., spatial sampling frequency) of 120 dots...
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