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1. Choose a sampling rate of Fs = 40 kHz.
2. Create a vector t of 32768 time-sample points spaced according to this Fs, starting at 0 seconds.
3. Compute a vector x of 32768 samples of a 5400 Hz sinusoid with amplitude of square root of 2
4. Plot the first 100 points of the sinusoid vs. time and verify it is the correct amplitude and frequency, use the MATLAB line style "-o" to get a "line and circle" line style; the circles will show where the samples are. Notice the fact that the sample locations vary from cycle to cycle (because the frequency is not such that Fs is an integer multiple of it), which makes measuring the frequency from this time-domain plot a bit more difficult comment on your results. Can you get better accuracy by averaging together several measurements taken in different cycles?
5. Compute the DFT of the first 4096 points of the sinusoidal signal and plot the signal's DFT magnitude in dB vs. the frequency and verify the correct frequency.
An 80KHz sinusoidal voltage has zero phase angle and a maximum amplitude of 20 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady state current has a maximum amplitude of 0.7 mA.
An address decoder in a 68000-based microprocessor system selects a memory device when the address lines A23, A22, A21, A20, A19, A18 = 1, 0, 0, 1, 1, 0. What is the size of the memory block decoded and what range of addresses does it span
a 2000kg ship initially at rest in an inertial system is accelerated along a straight line for (3.16E7 seconds) by means of a photon rocket of 300MW power. If this is accomplised using a series of He-Ne lasers with wavelength=633 nm
A wire of diameter 1 mm and conductivity 5*10^7 S/m has 10^29 electrons / m^3 when an electron field of 10 mV / m is applied. Determine charge density of free electrons, current density, and current in the wire.
Describe the functionality of the above DFSM using transition tables. Consider that the system starts always from state B. What happens if the system will start from another state - say A?
Imagine a network layer packet that travels from one host to another host across multiple local area networks interconnected by routers, Explain how the packet moves from device to device through the network.
Explain why the short-circuit method for determining the Thevenin resistance of a circuit cannot be applied if the circuit does not contain any independent current or voltage sources.
The middle C string on a piano is under a tension of 970 N. The period and wavelength of a wave on this string are 3.82 ms and 1.18 m, respectively. Find the linear density of the string.
A lossy resonator consisting of a series connected RLC circuit is attached to a voltage source Vs=Vo(e^(jpi/3)) a) Develop the voltage loop equation in terms of current i(t), R, L, C, and vs b) Find the corresponding phasor equation
Assuming that ideal filters are available, what is the lowest frequency at which the signal can be sampled and subsequently recovered in its analog form without distortion using a low pass filter?
Suppose f=20kHz and linear quantization is adopted. Calculate the PCM code when t0=10μs, maximum quantization error, the dynamic range, and the best and worst signal to quantization noise voltage ratio.
The bellows, diaphragm, and Bourdon tube pressure sensors all exhibit second order time response. This means that a sudden change in pressure will cause an oscillation in the displacement and, therefore in the sensor output.
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