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DSSSConsider a direct sequence spread spectrum (DSSS) system attempting to transfer data. The DSSS system has a data rate of 2 Kbps (2 thousand bits/sec) which is spread to 2 Mcps (two million chips per second). How much would be the processing gain:
a) 30 dBb) 20 dBc) 100 dBd) 60 dB
If you have an M/M/Infinity system with arrival rate lambda and service rate mu(µ), how would you show that the expected number of packets in the queue is equal
Write an optimal sequence of control microinstruction
Evaluate the TL parameters. Include the effect of the earth as ideal. Do not incorporate the effect of the shield wires.
A filter has the following characteristics: Attenuation is 0 dB from 0 Hz to 2.5 kHz. Phase angle decreases linearly with increasing frequency above 2.5 kHz. Above 5 kHz the filter has steadily increasing attenuation.
Define static electricity and State five sources of static electricity and Describe three methods used to reduce hazards due to static electricity
The basic column control system shown in Figure is somewhat more complicated than the basic neutralizer control system
What is the channel capacity for a channel with a 300 Hz bandwidth and as S/N = 3? 2nd problem: Given a channel with a 50 kHz bandwidth and a S/N = 127, determine:
What is the maximum allowable value Xmax of X? The system is built with X-Xmax. An engineer argues that the host on the sort side of the bridge can use a minimum frame length shorter than 512 bits if they are talking to other hosts on the same sid..
Resisitive load, A 4:1 step down transformer uses a 60Vac source on the primary windings.
Using Multisim, design a mod-100 BCD counter that drives a 2-digit, 7-segment display. The count sequence will be 0 through 99. Blank leading zeros in the tens digit of the display.
In comparing the behaviour of an n-channel MOSFET with a p-channel device having identical geometry and threshold voltage, it is found that the n-channel FET has a greater drain current than that of the p-channel FET.
What effect do internal capacitances in the transistor model have on practical performance of a real system? How would you use these model values to predict system performance?
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