Write the pseudocode for a program that does the following: The user is prompted to enter an integer between 1 and 1000. When the user enters the integer, the program uses a repetition control structure to validate whether the integer is within the proper range; otherwise, the prompt is continuously redisplayed to the user un
** Please see the attached file for the complete problem description ** 1. If the -3dB cut-off point for the filter shown (in the attachment) occurs for a real frequency of 200Hz then what should be the sampling rate (samples per sec)? 2. The difference equation for a digital filter is given by: y(n) = 2y(n-1) + y(n-2) + x
Please provide a step-by-step solution showing all the working. 1. Which of the following systems has the bode magnitude plot shown below? 2. Which of the following systems has the unit step response shown below? 3. Which of the following systems has the bode plot shown below? Please see the attachment for the respec
Name and describe, in detail, 2 methods used to eliminate noise from a (spatio-temporal) signal. This question requires a clear, detailed explanation of the methods. Mathematical equations can/should be minimized. The application under consideration are signals from an EEG or MEG reading.
S-R flipflops have a forbidden state that makes them hard to use. Some designers switched to the following flipflop instead. Fill in the timing diagram shown. Then, describe what the flipflop does in each of the cases of M and N (i.e explain what the output does for each combination of the inputs). Note that filling in this timi
Write a Java application that prints out numbers 2, 4 and 6 in row 1, numbers 3, 5 and 7 in row 2, numbers 8, 10 and 12 in row 3 and numbers 9, 11 and 13 in row 4. There should be an underline followed by a row of numbers that adds the numbers in the respective columns. The program should print out the information as follows:
Fourier Analysis of Systems: 1. A linear time-invariant continuous-time system has the frequency response function H(Ï?)=5cos(2Ï?), compute the system's impulse response h(t): 2. A signal with the highest frequency component at 10 kHz is to be sampled. To reconstruct the signal, the sampling must be done at a minimum f
Elmwood College Situation: The school is considering a new system that will speed up the registration process. As a systems analyst, you are asked to develop a plan for fact-finding. a. List all the possible techniques that you might use. b. Describe an advantage for each technique. c. Suppose the development budget is t
Recall that the general formula H(w) = Vout(w) / Vin(w) can be used in several ways: for example, from the known transfer function and the output, you can calculate the input signal of the circuit. Part 1. In the circuit shown in the diagram, R = 1 kOhm and C = 50 nF; at 10 kHz, the output signal amplitude equals Vout = 5 Vp
The z-transform of x(n) is X(z) = 1 / (1 + 0.5 z^-1), |z| <= 0.5 . Determine the z-transform of the following sequence and indicate it's region of convergence. x1(n) = x(3-n) + x(n-3). See the attached file.
For the following expression: x(n) = 3 (0.75)^n cos(0.3 pi n)u(n) + 4 (0.75)^n sin(0.3 pi n) u(n), Please calculate and express the Z transform as a rational function Z^-1 and work out the ROC.
Question 1: Determine if the following characteristic equation represents a stable system: s^3 + 4 s^2 + 8 s + 12 = 0 Question 2: Determine if the following characteristic equation represents a stable or unstable system: s^3 + 8 s^2 + 14 s + 24 = 0
The block diagram of a control system is given in the attachment.The inner loop is positive feedback, i.e. Ks>0, and hence the system is unstable. Adding a P-D controller on the forward channel and a unity negative feedback, one can stabilize the system. Find: 1. The conditions of Kc and Tc to stabilize the system. 2. T
Twenty voice signals are to be multiplexed and transmitted over twisted pair. What is the bandwidth required (in bps) if synchronous time division multiplexing is used, along with the standard analog-to-digital sampling rate, and each sample is converted into an 8-bit value?
An ideal low-pass filter is described in the frequency-domain by H_d(e^(jw)) = 1 . e^(-jaw) , |w| <= w_c 0 , w_c < |w| <= PI where w_c is called the cutoff frequency and a (denoting symbol alpha) is called the phase delay. Determine the ideal impulse response h_d(n) using the
4. A certain op-amp has an open-loop voltage gain of 100,000 and a common mode gain of 0.2. Determine the CMRR in dB. 5. Find the open loop gain and phase shift for an RC-lag circuit at the following frequencies: (i) 1 Hz (ii) 10 Hz (iii) 100 Hz (iv) 1000 Hz (v) 10000 Hz. Plot the curve of phase shift versus frequency curve i
1. Show that gain rolls-off at -6 dB/octave for a passive LP filter. 2. (a) Write down the expression for the frequency-dependent open-loop gain of an operational amplifier. Sketch the magnitude of the open-loop gain of an operational amplifier as a function of frequency. Explain what is meant by a `single-lag' response of an
Design a synchronous counter using J-K flip-flops that will count from 0010 to 1101 repetitively. a) Construct the "present state - next state" truth table. b) Complete the required K-maps for the design. c) Derive the minimised Boolean expressions for the J-K inputs. d) Draw the logic diagram for the counter.
Please refer to the attachment for the figures mentioned in these questions. 1. When a pulse is applied to an op-amp, the output goes from -40 V to +5 V in 0.6 microseconds. What is the slew rate? 2. A certain diff-amp (differential amplifier) has a differential voltage gain of 1500 and a common-mode gain of 0.5. Determine
Develop a control system to fill a container with water after it is emptied through a stopcock at the bottom. The system must automatically shut off the water when the container is filled. Please show a block diagram explaining the operation of the developed control system.
Laplace transform, Fourier transform, Unit-pulse response, Impulse response, DTFT, Differential equation
Please see the attachment for all the questions with proper symbols/notations. 1. Compute the Laplace transform of e^(-10t)cos(3)u(t) . 2. Compute the z-transform of the discrete time signal defined by: x[n] = δ[n] + 5δ[n - 1] 3. Compute the inverse Laplace transform of X(s) = (s+2) / (s^2+7s+12) . 4.
Please see the attachment for complete questions. 5. Find the gain (K) of the compensator so that overall closed-loop response to a unit step input has a maximum overshoot of 25%, and a 2% settling time of 0.1 sec. 7. Given the plant or process for a unity feedback system, find the steady state error for the given input.
Please walk me through these problems step by step. 1. Compute the Laplace transform of e^(-10t) = u(t). 2. Compute the inverse Laplace transform of: X(s) = (3s^2+2s+1) / (s^3+5s^2+8s+4) 3. Use Laplace transforms to compute the solution to the differential equation given in the attachment.
Write down an expression for the voltage waveform, and sketch the waveforms of the harmonic components.
An a.c. voltage, V, comprises of a fundamental voltage of 100 V rms at a frequency of 120 Hz, a 3rd harmonic which is 20% of the fundamental, a 5th harmonic which is 10% of the fundamental and at a phase angle of 1.2 radians lagging. (i) Write down an expression for the voltage waveform. (ii) Sketch the waveforms of the harm
Range of local oscillator frequencies, Image frequency, Receiver's sensitivity, Sensitivity and dynamic range, System output
1. A receiver tunes the HF band (3 to 30 MHz), utilizes up-conversion with an intermediate frequency of 40.525 MHz, and uses high-side injection. Calculate the required range of local oscillator frequencies. 2. An AM broadcast receiver's pre-selector has a total effective Q of 90 to a received signal at 1180 kHz and uses an I
Why is it necessary to include an implementation margin when estimating the BER expected in a real digital communications link?
A satellite communication link transmits a QPSK signal at a rate of 10 Msps. The transmitter and receiver have ideal RRC filters with roll-off factor r = 0.25. At the input to the QPSK demodulator in the receiver, the CNR is 18.5 dB under clear air conditions (no rain in the link). a. What is the bandwidth occupied by th
A digital communication system transmits binary data using polar NRZ pulses of current over a baseband link with a bandwidth of 20 kHz. The transmitter and receiver have ideal "Root Raised Cosine" (RRC) filters with roll off factor = 0.5. a. What is the minimum bandwidth that the link must provide to avoid generating IS
A filter has the following characteristics: Attenuation = 3.0 dB from 0 Hz to 2 kHz. From 2 kHz to 20 kHz attenuation increases from 3 dB to 23 dB in a straight line when plotted on axes of power in decibels (vertical axis) against log frequency ( horizontal axis). a. Is this a low pass, high pass, band pass or band sto
An audio signal is sampled, digitized and recorded on magnetic tape as a PCM signal. This process is analysed
An audio signal has a frequency range from 50 Hz to 20 kHz. The signal is sampled, digitized and recorded on magnetic tape as a PCM signal. a. 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 lo
A signal consists of rectangular pulses of duration 0.1 ms that arrive at a receiver at random intervals of time. What is the shape of the spectrum of the signal? What is the extent of the spectrum in the frequency domain? What is the unit that is applied to the magnitude of the spectrum?