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An audio signal s(t)generated by a loud speaker is reflected at two different walls with reflection coefficients r1 and r2. the signal x(t).
Select a feedback format so that the system is critically damped and the settling time (2% criterion) is 2 seconds. Solve for K1 and K2.
When a square wave with a fundamental frequency of 2khz and amplitude 5v and comprised of up to five odd harmonic.
A unit for a telecommunications system is to be designed so as to have a minimum availability of 0.9994.
Design a differential amplifier as shown in Figure 11.28 incorporating a basic two transistor current source to establish Iq.
A 200 km long cable operates at T1 rate. The propagation speed in the cable is 2/3 of speed of light (200,000 km/sec). How many bits can fit in the cable?
The sampling rate in the A/D and D/A is 100 samples/second, and the impulse response in the figure above is h (k) = (0.5) k u (k).
Sketch the root locus for the following closed loop system as a varies from -8 to +8. You should calculate all steps.
An AC-AC converter is used to obtain a variable AC output voltage Vo from a fixed AC source and a single-phase converter with a TRIAC.
Generate 200 samples of the sequence y(k) and process through the filter designed in part (a) to obtain the output z(K).
An analogue signal is to be sampled from a transducer with an output voltage range of 0 to 10 volts and operating on a 12-volt power supply.
A waveform v(t) has a Fourier transform which extends over the range -F to +F in the frequency domain.
Given a 16-to-1 Multiplexer, how many of the following are required:Convert the following numbers as indicated.
The tones are pure sinusoids with one at frequencies 8GHz and the other at frequency 8.03GHz,(delta f =0.03GHz).
A company needs to provide sufficient private trunks between two switches to accommodate 90% of call attempts among employees.
Compute a K of the form [ 1 k2] so that (A - BK, C) is unobservable. (I.e., the closed loop system is unobservable).
What bit pattern (after you remove the beginning and ending flags and any stuffed bits) will the receiver pass on for higher level processing?
Let Ki = 10. Use the Routh-Hurwitz criterion to find the range of Kd, and Kp in terms of Kd, so that closed loop stability is achieved.
For the circuit, determine the required values of Rd, R1 and R2 so that the transistor operates in the saturation region with Id=0.5mA.
A PCM system with uniform quantization is used to transmit a speech signal. The bandwidth of the signal is equal to 6 KHz.
You want to produce a report of your movie collection. Which fields would you use, and which would be the data types of each of those fields?
For an urban environment, at 1900MHz, what is the path loss between a base station at 40m height and a mobile at 1.6m height separated by a distance of 5 km?
The band-pass filter has a center frequency fi=|fc - ft| (also known as the intermediate frequency, IF).
Assume feeder lengths = tower heights, and a mobile height of 2m. For the purpose of this exercise, cell with a radius of less than 1 km are acceptable.
A feedback element with a transfer function, H(s), is to be chosen so that the system steady-state error to a unit step input is equal to 0.07.