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1.Compare the bandwidth of ask,fsk,and signals.
2.what is quantization noise of a pcm system operating a sinusiodal waveform and quantized into 128 levels
3.illustrace with a sketch ,how quantization takes place in a pcm systems.
4.discuss the relative merits and drawbacks of using antennas,waveguides and transmission lines as the medium for communication links
A three-phase two-pole winding is installed in six slots on a stator. There are 80 turns of wire in each slot of the windings. All coils in each phase are connected in series, and the three phases are connected in Δ. The flux per pole in the mach..
Sketch a time diagram similar to Figure 3.22 illustrating what happens when a frame gets lost between the sender and the receiver. It should be clear from your diagram how the protocol handles this situation.
Two semiconductor materials have exactly the same properties except that material A gives photoluminescence at 1240nm and material B at 1033nm. Determine the ratio of ni for material A to that of material B for T=300K.
The core is made of cast steel. Find the MMF required to get an air gap flux of 60,000 lines. The cross sectional area of the center section and air gaps is 4 in^2. The remaining sections have a cross sectional of 6 in^2.
Determine the current through each of the impedance elements given below. Assume an applied voltage of 480 ? 30o V. Express your answers in polar form. a. Z = 50 + j0Ω b. Z = 20 + j15Ω c. Z = 30 - j25Ω
An amplifier with a voltage gain of +40 dB, an input resistance of 10 kO, and an output resistance of 1 kO is used to drive a 1-kO load. What is the value of Avo Find the value of power gain in dB
Perform the following addition or subtraction of the given numbers using 8-bit 2's complement representation of the numbers. Parts (a) and (b) are given in decimal, while parts (c)-(e) are given in 8-bit 2's complement.
Different Types of Dispersions in an Optical Fiber - Please write a term paper based on research paper
The equation y[n] - p y[n-1] = x[n] can be used to describe thevalue y[n] of a new investment by setting p = 1 + r/100 where r is the interest rate per period, expressed inpercent.
Evaluate the number of mobile electrons contributed by each Al atom. Assume the current is carried exclusively by electrons which have a mobility
Consider a regenerative Rankine cycle with a 600_C and 4-MPa throttle, a 5-kPa condenser, and an open feedwater heater at 500 kPa. Turbine efficiencies are 85%. Neglect pump work. (a) Draw labeled, coordinated T-s and flow diagrams.
The secondary winding of a transformer has a terminal voltage of vs (t) = 282.8 sin 377t V . The turns ratio of the transformer is 50:200 (a = 0.25). If the secondary current of the transformer is (t) = 7.07 sin (377t - 3..
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