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    Matched Filter and Optimum Filter

    When is the matched filter the optimum filter? ================================================ Answers: a) When the signal is band-limited. b) When the channel noise is white. c) When the channel noise is correlated. d) When the signal is of finite duration. The probability of bit being in error is 0.001. The message c

    Frequency-modulated (FM) Signal

    A frequency-modulated (FM) signal is by? Correlation receiver is equivalent to the matched-filter receiver? Attached pdf file.

    DSP Quantisation Levels

    1. 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. The designer has available two analogue to digital converters (ADC): a 3 bit ADC and a 4 bit ADC. For each converter: (a) Supply the quantisation levels (including zero) that are avai

    8051_C program definition

    Fully explain what the program does by providing manual walk-through i.e. Step through the program by hand indicating state of variables, inputs and outputs at each statement. Give a general overview of what the program does using Layman terms. (See attached word document for program details)

    Peal Maximum Value of a Feedback Control System

    In this attached question P(s) refers to the plant transfer function and Y(S) is the output of the system. I have also attached a schematic of how the system i think looks like. Please provide solutions to all except part c.

    Solving for Feedback Control Systems

    Find T(y/r), assuming a standard structure and algebraic quantities, find g and f to get tracking, T(y/r) E [0.98, 1.02] with pE[1,5]. Please view attachment to see the diagram for this question.

    FIR Filter Using Parks-McClellan Algorithm

    See attached word document. The problem is taken from 'Digital Signal Processing using Matlab' by Ingle/Proakis. 1. A digital signal y(k) contains a sinusoid of frequency π/2 and a zero mean unit variance Guassian noise w(k), i.e. y(k) = 2cos(π k/2) + w(k) We want to filter out the noise component using 50-th or

    Magnitude and phase of Y (e j w)

    Plot the magnitude and phase of a function Y (e j w) using Matlab. How do you write a Matlab file to plot the above? y(e^(jw)) = 2.5*[(1/{1+0.9e^(j(0.1*pi-w))}) + (1/{1+0.9e^(j(-0.1*pi-w))})]

    DSP analog filter problem

    This problem is taken from the Textbook 'Digital Signal Processing using MatLab' by Ingle/Proakis. The below system (in the attached file) acts as an analog filter. The analog signal m(t) is passed through an analog to digital converter and m(k) is the resultant discrete or digital output in the form e^(jw). The discrete sign

    Determining Analytically the DTFT of Sequences

    Having difficulty with determining analytically the DTFT of sequences. I have attached a word document with problems that require answering Determine analytically the DTFT of each of the following sequences. See attachment for details

    CMOS inverter

    Consider a CMOS inverter biased at Vdd=4V and assume the transistors are matched with Kn=Kn and Vtn=-Vtp=/2*Vdd. Derive the expression for, and calculate the noise margins. Please see attached files.

    Ideal Op Amp Maximum Values

    For the circuit shown, assume an ideal op-amp. Find vo(t). Also, find the maximum value of vo(t). See attached diagram. Show how you arrived at your answer.

    What is the PIV required of the diode?

    A half-wave rectifier employing a 12-V-rms 60-Hz sine-wave source and no dc load is filtered using a polarized electrolytic capacitor having a small leakage current. For diodes assumed to have a 0.7V drop independent of current, calculate the resulting output. What is the PIV required of the diode? Show how you arrived at the an

    How much current will flow through the diode?

    A 5.1 K resistor is connected between the cathode of a 6.2 V zener diode and a 12 V power supply. The anode of the diode is connected to 6 V. Approximately how much current will flow through the diode?

    Voltage/Time in Microseconds

    Consider the following circuit in the diagram attached. The voltage step is an "ideal" pulse going from 0 V to 4 V and then back to 0 V; The pulse width is 5 microseconds wide. What is the voltage across the resistor, Vr (t), 7 microseconds after the rising edge of the input pulse? There are 4 options: a) between 0.1 and

    Line Currents

    A 2,400 V, balanced, three-phase delta circuit has phase load impedances of 40+j60 OHMS. Find the line currents IaA, IbB and IcC. Note: Just as the current IaA shown in the attached figure is the current flowing from node a to node A, the current IbB is the current flowing from node b to node B, and the current IcC is the cur

    Voltage Curves

    Consider the attached circuit. The sinusoidal source voltage is v(t) = 20*sin(2*pi*t). The diode is ideal. What would the correct sketch of the source voltage and the load voltage as a function of time be? (Four possible answers are attached.)

    Problem on Subsample and Downsample of Image Processing

    With the help of MATLAB, subsample and downsample a given 512x512 image with the following filters. They include: LxLy = [1 1;1 1], LxHy =[1 1;-1 -1]; HxHy = [1 -1;-1 1]; HL =[1 -1;1 -1]. The following pixel size the image should be downsampled to, ie (256x256),(64x64) are shown in the file attached. Show ou

    Contains basic function in MATLAB files.

    Write MATLAB script(s) to plot the basic signals below in two subplots. The upper subplot should be a continuous waveform (don't do g) and the lower subplot should be a discrete plot. a) Sinusoidal waveform b) Exponential Waveform c) Damped Sinusoid d) Sinc function e) Step Function & Square Wave f) Triangle Wave g) Im

    Problem on Op-Amp Small-Signal Circuit

    Consider a non-inverting BiCMOS (CA3140) op-amp shown in image 3b. If the input signal is: vi(t)=3*sinwt V Calculate the full-power bandwidth (FPBW) and small-signal bandwidth (f3db) (note :ft=6 Mhz, A0=75k) Sketch the output wave forms for the two inputs shown in image 3b2.

    BJT Input Diff-Amp Stage/Off-Set Voltage

    Define the offset voltage in the op-amp circuits. Show that the expression for the offset-voltage compensation of BJT input diff-amp stage shown in figure 4 is given by: Vt*ln(ic1/Is3)+ic1R'1=Vt*ln(ic2/Is4)+ic2Rs' Determine the value of x in the potentiometer to compensate for a mismatch between active load transistors Q3

    Nyquist Plot and Stability

    What are the techniques used to make feedback system stable? Explain and draw the frequency response of a 1-pole feedback amplifier. In a 3-pole feedback amplifier the loop gain is given by: t(f)=(Beta*100)/ ( (1+j*(f/10^4)) * (1+j*(f/10^5))^2 ); Determine the stability for Beta=.5 and .05. Sketch the Nyquist p