In order to delimit messages from a stream of bits being exchanged on a data link, a sender marks the beginning and end of each message with a control flag. In order to prevent the receiver from inadvertently detecting the end of a message when a pattern in the data matches the control flag, the sender stuffs extra bits or chara
A system described in the attachment is under feedback control of the form u = Kx + r where r is the reference input. (i) Show that (A,C) is observable. (ii) Compute a K of the form {see attachment} so that (A - BK, C) is unobservable. (I.e., the closed loop system is unobservable) (iii) Find the transfer function of the open
Please consider the attached motor control system. (i) Find the characteristic equation of the closed loop system, and find the amplifier gain K1 so that the natural frequency of the system is {see attachment} (ii) Suppose that K2 = 1. Sketch the root locus of the closed loop system poles for {see attachment} (iii) For what v
Consider a negative gain root locus for L (s) = k (s-1)/[s(s^2 + 4s + 8)] with a scale of 20mm = 1 unit. i. Graphically, find the gain required to give dominant closed loop poles with zeta = 0.5. ii. For the above value of gain, find natural frequency and hence sketch the expected reference to output step response, assuming
I attached a Word document with a circuit: a) Draw a block diagram of the circuit in feedback control system form. b) Derive an expression for Io in terms of Vi and the system parameters Av, Ro, RL, and Rf. c) How should the system be designed to make Io independent of RL? What is the approximate expression for Io in terms
Please see attachment.
1. A company needs to provide sufficient private trunks between two switches to accommodate 90% of call attempts among employees during the busy hour. Assume that there will be 560 callers at random times during that hour, and that call duration averages 3 minutes. Employees are instructed to attempt to call using a trunk; if bl
Show that the average (mean), mean-square, and median values of the Rayleigh PDF for amplitude are given by the equations listed in the attachment.
Consider the attached system under feedback control and answer the listed questions please.
Y''(t) + 6y'(t) + 13y(t) = te^(-t) Compute the homogeneous solution yh(t). Compute the particular solution yp(t). Compute the general solution y(t) if y(0)=0 and y'(0)=1/8
Please see attachment for full question on PI controller proportional and integral to the given plant. The inverse Nichols chart mentioned in the question is also attached for convenience.
Consider a single input tone, such that: Vo = ko + k1*Vin + k2* Vin^2 + k3*Vin^3 +.... Let Vin = cos(wt). Now if a tone is put into an amplifier, and its amplitude is increased by 1.5dB, how much will the amplitude of the third order products increase in dB? Using the third order term only of the transfer polynomial, prove this
Suppose two tones are input in to an amplifier. The tones are pure sinusoids with one at frequencies 8GHz and the other at frequency 8.03GHz,(delta f =0.03GHz). Assume that the transfer characteristic of the amplifier is represented by Vout= ko + k1Vin +k2Vin^2 +k3Vin^3...+k9Vin^9. List the output frequencies of all 3rd order (t
Please refer to the attached file. A three-phase, 60 Hz, 400 hp, Y-connected induction motor, operating at three-quarters rated load with an efficiency... (see attachment for rest of question)
Given the plant, P(s) = {see attachment}, a proportional and integral (PI) controller, G(s) = {see attachment} is to be designed to achieve the following specifications ... *Please see attachment for complete question (including specifications)
Sketch the root locus for the following closed loop system {see attachment} as {SYMBOL1} varies from -{SYMBOL2} to +{SYMBOL2}. You should calculate all steps and show the positive and negative gain loci. It is recommended that you first find the positive locus and then sketch the negative {SYMBOL2} locus. (Real axis solutions o
Please help me solve the following problems. Problem 1: Consider the following circuit (see attached). IC 1 is a 3-bit asynchronous (ripple) counter, positive-edge triggered. At higher speeds propagation delay will affect the proper function of the counter so that the counting sequence is altered. Glitches will be produced
Please refer to the attached file. Consider the attached unity feedback system with plant transfer function... (attached)
Use any method to determine the inverse z transform for the following function: X(z) = (z^3-2*z)/((z-2) - left sided sequence
A discrete time system is described by the following transfer function: H(z) = 1 + 2z^(-1)/(1-(1/2z^(-2))) a) Give a block diagram to implement the system using delay elements, multipliers, and adders. Use the smallest possible number of delay elements (all of the same delay). b) Find the impulse response of the system.
2.a) Using the result for P(I) in Question 1, prove that the n-th moment of complex Gaussian noise is {I^n} = n!(2sigma^2)^n You may use the following result for the Gamma integral Gamma(n-1) = n! = integral x^n exp(-x)dx. b) Hence, obtain an expression for the normalized moments {I^n}/{I}^n c) Deduce that the v
VLSM Exercise Details are : ---> VLSM Exercise: Site A 60 users Serial links Site B Site C Site D Site E 20 users 10 users 10 users 48 users You are given the 192.16.15.0 address. Effectively address all router interfaces using VLSM. Each side of the arrows is a serial interface. Each site has an Ethernet
Please refer to the attached file to view the accompanying formula aid. Question: A capacitor consists of a circular cross-section metallic rod of 1mm radius and a coaxial hollow metallic cylinder of 3mm radius of the inner surface. The length of the capacitor is 20cm. The space between the rod and the cylinder is filled by
For the process, P = 1/(s + 1)(s + 2), design a PI controller, G = (k_p)(s + 1/T_i)/s, to have a closed loop dominant pole pair with w_n = 1.3 and delta = 0.5. Design T_i and then k_p using root locus methods.
Draw the positive and negative gain root-locus of (view attachment to see L equation). Hence find the gain to have a closed loop damping factor (0.7). Please view attachment to see full question as it was not possible to type it all out.
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. a. True b. False
2. Given a 16-to-1 Multiplexer, how many of the following are required: a) Inputs _______ b) Outputs _____ c) Control signals ______ 3. Given the following information: 1. 1024 words (1K) 16 bits/word 8 bits/byte How many bytes are available? _______ 4. Convert the following numbers as indicated a) 255 decim
For a band pass system with unit step input. (See attachment for equations.) For a CD player, a step force of 2N must result in a head velocity error of not more than...(See attachment for details.)
In the received amplitude-modulated signal si(t) = A[1 + m(t)]cos2PIfct m(t) has the power spectral density G(m)(f) = (n_m/2)(|f|/fm), |f| <= fm or 0, |f| > fm The received signal is accompanied by noise spectral density n/2. The output signal-to-noise ratio is then?
A waveform v(t) has a Fourier transform which extends over the range -F to +F in the frequency domain. The square of the waveform v(t), that is, v(t) v(t), then has a Fourier transforms which extends over the range: ============================================== Answers: a) -F to +F b) -2F to +2F c) -3F to +3F d) -4F to +