AER715 - Lab1 - Worksheet1

Draw the diagram of a halfwave power supply circuit and a fullwave  supply circuit. Aside from  the difference between the number  of diode utilized in both circuits, state the main advantage of  the fullwave power against the halfwave circuit for the following scenario . When there is a defective diode (open anode- cathode ) When the filter capacitor is defective (capacitor is open)

Hand book.

Describe the importance of using Bandpass filters in BFSK noncoherent demodulator.

a) Consider the system shown in Figure 3(a). An input signal vm(t) is multiplied by a complex exponential signal e10nt The output signal v,(t) is fed into a low pass filter (LPF) with cut-off frequency wc. The input signal Vm(@) and the output signal V.(@) are as shown in Figure 3(b) and (c), respectively. i. Write the mathematical equation for signal in Figure 3(b). ii. Sketch signal, V,(@). iii. Based on the given V, (w), write the mathematical expression of the LPF, H(@) and state its cut off frequency, wc. iv. Sketch the output of LPF, V(@), if the cut off frequency of LPF is 10. v:(t) LPF Vm(t) vo(t) H(@) ej10nt (а) |Vm (@)| IV,(@)| 10 8 6. 3 -20715T-10T-5n 5n 10n 15n 20n -57 (b) Figure 3

A channel having a bandwidth of 1 kHz, the power of signal is 10 W and the power of noise is 5 W. Determine the channel capacity. Or: A channel having a bandwidth of 1 kHz and Signal to Noise Ratio (SNR) is 2. Determine the channel capacity.

How it is generated Single Sideband Modulator Using Filter Method

12- A DVM measure... a- peak value. b- RMS value. Average value. d- peak to peak value. 13 The study of energy distribution across the frequency spectrum of a given electrical signal is done by a Distortion meter b-wave analyzer.

In an Amplitude Modulator where the carrier and modulating signals are both sine waves, the frequency spectrum of the resulting AM signal is shown below. 12V 2V 2V kHz 803 808.6 a) Determine the equation of the modulating signal b) Calculate the bandwidth of the AM signal c) Calculate the effective current of the AM signal thru a 75-ohm load. d) Sketch the AM wave and label the maximum and minimum voltage of the signal.

Give an example problem of "SECOND ORDER PASSIVE BAND PASS FILTER"

FM modulated signal is demodulated using: Select one: O a. Costas PLL O b. Carrier reinsertion method Oc Discriminator followed by integrator O d. Discriminator A Phase-locked loop can be used as: a. FM modulator O b. AM demodulator O c. AM modulator d. FM demodulator

In three-level PWM, the modulating process operates on each portion of the modulating function separately. The output peak value is still given by the depth of modulation, but the RMS value of the square wave is not Vin. Compute the THD for three-level PWM as a function of the depth of modulation (modulation index k).

If the maximum frequency deviation is 25kHz and modulating signal frequency is 12kHz.     6c.    Is this FM treated as narrow band or wide band?

Phase modulation (PM) can be: O a. Only narrowband. O b. Only wideband. O c. Narrowband or wideband O d. Nothing here. Check

Draw the diagram of a zener regulated fullwave power supply circuit.Discuss how the bleeding resistor and zener diode regulate the DC voltage across the filter capacitor of the power supplycircuit.

in FM , the maximum allowable frequency deviation is 4kHz and the frequency deviation by noise is 156.42HZ? then the signal to noise ratio is .......

can you pls answer

Find the resonance point and the half-width of the speed versus frequency curve for the damped harmonic oscillator, under the action of a sinusoidal driving force.  *It is all the data

With the aid of diagrams, show and explain how phase locking is used to demodulate a frequency-modulated (FM) signal.

b) Draw the block diagram of the phase - locked loop (PLL) that can be used to demodulate FM signals. Explain briefly . the operation of this demodulator

2. Determine the peak phase deviation and modulation index for a PM modulator with a deviation sensitivity K = 2.5 rad/V and a modulating signal v(t) = 2 cos (212000t). %3D

B- What is the difference between AM-DSB and AM-VSB.

For the filter: a) Determine type of filter and the cut-off frequency (Fc). Determine the peak voltage at the cut-off frequency (Fc). b) Find GAIN (Vo/Vi) at f = .1*Fc . Find GAIN (Vo/Vi) at f = 10*Fc . c) Determine the frequency at which GAIN = .4 (i.e., Vo = .4*Vi) . Draw the “Frequency Response Plot” in “Log-Log” format .

What is the graph of the FM and PM magnitude spectrum with sine modulation?

A 45Mbseg signal is applied to an 8PSK type modulator, so the bandwidth of this modulator is 20Mhz. true or false

8. Determine: a) Noise Figure for an equivalent noise temperature of 75K. d) Equivalent noise temperature for a noise figure of 6dB.

discuss the uses of Hanning window in FIR filter!?

I need proper solution for the following( underdstandable writing and well explained) thank you  What is resonance in LCR circuit? and tell the difference between impedance and resistance?

Determine modulation index for a frequency modulator with a deviation sensitivity of 20 kHz/V and a modulating signal of 5cos 2π(2500)t

Determine four distinct types of modulation processes.