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Study code acquisition in frequncy hopping spread spectrum communication systems.Describe and explain why it is necessary.Design and demonstrate a code acqusition method.
The air density is 1.23 kg/m^3. If the rolling frictional force is determined to be 47,500 N and the power required to sustain the current velocity is 4.681 MW, determine the approximate drag coefficient of the train
a) What is the key difference between coherent and non-coherent demodulation b) Explain the concept of differential encoding for BPSK modulation.
A) What is the magnetic field at a point along the axis of the coil, 0.89 m from the center B) At what distance from the center along the axis is the magnetic field magnitude 1/11 as great as it is at the center
Write a three function program. The main function must create a string array with room for 10 elements. The main function should call the second function passing it the array as the first argument and the size of the array as the second argument.
First do this problem for a 5x5 board and the point charge on the center square. Next do it for a 7x7 square and the point charge on the center square. Write a computer program for 101x101 board. derive a general expression for an infinite chessboa..
Circuit is needed to divide a 10Hz signal down to 1 Hz. Design two circuits as in the accompanying description. Hook the clock input to a 10Hz clock on the logic designer, and hook the output clock to an LED.
A glass tube with a cross-sectional area of 9^-2 m^2 contains an ionizd gas. The densities are 10^15 positive ions/m^ and 10^11 free electrons/m^3. Under the influence of an applied voltage, the postive ions are moving.
A silicon p-n-p BJT was designed to have doping levels of 1020 cm-3, 1015 cm-3, and 1017 cm-3 in different parts. a. Identify which doping level was intended for the emitter, for the base, and for the collector.
A two resistor voltage divider consists of a 10 k and a 15 k ohm resistor, with the 10 k resistor connected to the voltage source and the 15 k resistor connected to ground. If the output voltage is 2.5 V, what is the value of the voltage source
What is the thermal noise level of a channel with bandwidth 10kHz carrying 1000. Watts of power at 50o C?
a)For what value of capacitance will these condition exist ,assuming that impressed voltage ,frequency,resistance and inductance remain unchanged. b)Calculate the voltage drop across the capacitance under this condition.
Assume that when you measure a power supply voltage through a series of 1 Mega Ohms the voltage drops by half compared to the direct measurement. What is the input resistance of the meter
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