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an am system has a message signal that has a zero-mean gaussian amplitude distribution the peak value of m t is taken
assume that an am system operates with an indexof 06 and that the message signal is 12 cos 8pi compute the efficiency
an ssb system is to be operated with a normalized mean-square error of 005 or less by making a plot of output snr
the message signal on the input to an adc is a sinusoid of 25 v peak to peak compute the signal-to quantizing-noise
in discussing thermal noise at the beginning of this chapter we stated that at standard temperature 290 k the white
the preceding computer exercise problem examined the behavior of a pll in the acquisition mode we now consider the
in chapter 3 we developed a matlab program that can be used to investigate the acquisition performance of a pll using
derive an expression for the detection gain of a dsb system for the case in which the bandwidth of the band pass
assume a three-bit adc eight quantizing levels we desire to design a companding system consisting of both a compressor
execute the computer program used to generate the fm discriminator performance characteristics illustrated in figure
a consider the design of an mmse equalizer for a multipath channel whose output is of the formb obtain the optimum tap
fading margin can be defined as the incremental ebn0 in decibels required to provide a certain desired error
a sketch the trapezoidal spectrum p f b by appropriate sketches show that it satisfies nyquists pulse-shaping
consider a baseband antipodal pam system with channel bandwidth of 10 khz and a desired data rate of 20 kbpsa what is
develop a set of performance curves similar to those shown in figure 78 that illustrate the performance of a coherent
for the numerical auto- and cross-correlation matrices of example 811 find explicit expressions write out an equation
given the following channel pulse-response samplesa find the tap coefficients for a three-tap zero forcing equalizerb
the purpose of the exercise is to demonstrate the properties of ssb modulation develop a computer program to generate
assume that the bit period of computer example 43 is t 1 s that means that the sampling rate is fs 50 samples per
using computer example 35 as a guide develop a simulation program for pam and ppmexample 35in this example we consider
modify the simulation program given in computer example 34 so that the phase detector includes a limiter so that the
modify the simulation program given in computer example 34 to allow the sampling frequency to be entered interactively
referring to computer example 34 draw the block diagram of the system represented by the simulation loop and label the