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Write an m-file "sampling.m", which will take as an input: a signal and a sampling step and will display the sampled signal and the magnitude of its Fourier transform. sampling.m
function sampling(x,step) plot(x(1:step:end),'-o') plot(abs(fft(x(1:step:end))))
use x as the input signal
x=(sin([0:pi/8:4*pi]))
Run the function with step=1.Increase the sampling step 2,4,8.... and observe what happens with the spectrum.
What happens with the spectrum as the sampling step increases?
What should be the minimum sampling frequency (maximum sampling step) of a signal?
how can i calculate that is following signal is periodic or not? X[n]= ?_(k=-8)^8¦?{d[n-4k]-d[n-1]-4k]}?
power factor improvement
UJT as relaxation oscillator: The UJT relaxation oscillator is shown in fig. it consist of a UJT and a capacitor C which is charged through a variable resistance R when VBB is
2's Complement Multiplication Two's complement multiplication follows the similar rules as binary multiplication. For illustration, (-4) × 4 = (-16) 1111
Q. A separately excited dc generator with an armature-circuit resistance Ra is operating at a terminal voltage Vt, while delivering an armature current Ia, and has a constant loss
Theoretical calculations The characteristics of the d.c. machine you will be investigating are given on the last page of this part. Use 200V DC supply for both armature and fie
A quantizer has 130 quantum levels that exactly span the extremes of a symmetrically ?uctuating message with step size δv = 0.04 V. Determine the following: (a) |f(t)|max.
why the primary bushing of 7970/13.8 distribution transformer blown up when connected wye on a 13.8 kv source?
Factors Affecting to High Technical Losses Large Scale Rural Electrification Large scale rural electrification programmed undertaken in the country resulted in long LT li
Int r insic Material A perfect semiconductor crystal with no impurities or lattice defects. No carriers at 0 K, since the valence band is completely full and t
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