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T-Attenuator
A T-attenuator is required to be inserted between an amplifier and a transmission line. The power level to the line is required to be restricted to -3 dB. The gain of the amplifier is fixed at 24 dB and its maximum input signal is at a level of -10 dB.
Sketch a block diagram of the arrangement and calculate suitable values of pad resistance if both the amplifier and the line have a characteristic impedance of 600 Ohm.
Tuning methods for PID controllers, Investigating tuning methods for PID controllers of 2nd order and 3rd order control systems. Eg. Zieglar Nichols, etc
Why Can Discrete-Time FIR Digital Filters be a Linear Phase, Why can discrete-time FIR digital filters be made exactly linear phase, whereas IIR digital filters cannot?
You have a bandwidth of 10 MHz (per direction) in a single-cell system and want to deploy a wireless telephone system. You have the following options: analog 30-kHz channels (as in AMPS)
The ATSC broadcast television system used in the US transmits video signals at an average rate of 18.34 Mbps and employs 8-VSB modulation.
Write a short technical report on Frequency Division Multiplexing
If L=0.0053nH, C=15µF find the operating frequency of series LC circuit. What factors decides capacitance? Explain using diagram.
A terrestrial radio link transmits a CDMA signal from a base station using a spreading code with a chip rate of 1.0 Mchips per seconds. The message data rate of the signal is 10 kbps.
Compute the unit-pulse response h[n] for the discrete-time system y[n+2]2y[n+1]+y[n]=x[n] (for n = 0, 1, 2, 3).
What is the maximum message bandwith for which the system operates satisfactorily? Determine the output signal to quantizing noise ratio when a full-load sinusoidal modulating wave of frequency 1 MHz is applied to the input.
A DSSS-CDMA signal has a chip sequence that is 1,000 chips in length. The sequence repeats every millisecond. Define DSSS-CDMA Chip Sequence
A time varying capacitor is characterized by the charge- voltage equation q(t) = C(t)v(t)
Determine the frequency response of this receptor to stretching. There are devices that can apply sinusoidal stretch to a small segment of tissue.
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