Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
a. Draw the block diagram for a coherent receiver for QPSK using the same basis signals as in problems ("What frequency must be used for basis symbols f1 = sin(pi*ct) and f2 = cos(pi*ct) with a symbol period of 1/(9600Hz) to contain 6 cycles of the sin and cos"). What are the impulse responses for the 4 matched filters?
b. Modify your program from a so that it now receives data which is 2 bits per symbol. Choose frequency multiples for your symbols and plot some representative messages.
For each add instruction in this problem, assume that EAX contains the given contents before the instruction is executed, and give the contents of EAX as well as the values of the CF, OF, SF, and ZF flags after the instruction is executed.
Design a device that creates a voltage that is a damped oscillation with a frequency of 5 radians per second and a time constant of 3 seconds. In particular, explain how initial conditions are to be handled.
A base-station cellular communicationsystem utilizes arrays of f/2 dipoles as transmitting and receiving antennas. Assuming that each element is lossless and that the input power to each of the f/2 dipoles is 1 watt, determine at 1,900 MHz
A 22-kw load is powered by a 68-hz, 480-V(subscript rms) line with a power factor of 0.8 lag . Calculate the parallel capacitance required to correct the power factor to 0.9 .
a plane wave is obliquely incident onto the planar interface between mismatched, lossless, nonmagnetic, uniform media, yet undergoes no reflection. If incidence is at 54 degrees to the normal, at what angle to the normal does the transmitted wave ..
Show how to build each of the following single- or multiple-output logic functions using one or more 74X138 or 74X139 binary decoders and NAND gates. (hint: Each realization should be equivalent to a sum of minterms)
single phase motor draws 20A from a 200V, 50Hz supply with a lagging power factor of 0.8. Calculate the value of the capacitance needed to bring the current in phase with the voltage.
Dynamic RAM that must be given a refresh cycle 64 times per ms. Each refresh operation requires 150 ns. memory cycle requires 250 ns.
A n-type Si wafer is doped with Nd=1e15/cm^3, find the level of acceptor doping we need to convert the wafer from n-type to p-type, with a target hole density p=5e15/cm^3. also ni = 1e10/cm^3
A clever student notices that a high constant loop gain would make the PLL converge in frequency and phase. Rather than use an amplifier with infinite gain the student decides to just use an unstable filter.
Develop the VHDL text file for a binary up-coutner to divide an input frequency of 2 MHz to give an output of 20kHz. Use Q as the ouputs and CLK as the rising edge clock input.
(b) This voltage is measured using a defective voltmeter, which always indicates a lower reading than the actual value. Suppose the voltmeter reading is 2.5*10^(-4). Calculate the probability that the error is not more than 0.5 *10^(-4).
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd