Q16: A FDM system uses SSB – SC modulation and AM main carrier modulation. There are forty (40) equal amplitude voice input channels; each bandlimited to 3.3 kHz. A 0.7 kHz guard band has allowed between channels and below the first channels. (a) Determine the final transmission BW. (b) Compute the degradation in signal- to- noise of input No. 40 when compared to input No.1, assuming that PSD of noise (two – sided) is f² uw /Hz.

Q16: A FDM system uses SSB – SC modulation and AM main carrier modulation. There are forty (40) equal amplitude voice input channels; each bandlimited to 3.3 kHz. A 0.7 kHz guard band has allowed between channels and below the first channels. (a) Determine the final transmission BW. (b) Compute the degradation in signal- to- noise of input No. 40 when compared to input No.1, assuming that PSD of noise (two – sided) is f² uw /Hz.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Q2. Distinguish coherent Vs non coherent detection in digital modulation technique Q4. Discuss FSK and QAM techniques. Draw the signal constellation diagram of 4FSK and 4QAM
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B) Twenty four speech signals the channel and minimum required bandwidth. are TDM-PAM transmitted, find minimum sample rate at
ANSWER THE PROBLEM MAKE SURE THAT IT IS IN 4 DECIMAL PLACES: Solve for the side frequency volt, modulation depth is lessened by 25% of an AM transistor with 32V output voltage when modulated to a depth of 96%.
For single sideband (SSB) modulation d) Explain with drawing the demodulation process of SSB signal.e) How many single sideband (SSB) stations can be accommodated in a 180 KHz bandwidth if the highest modulating signal frequency fmax is 9 KHz?f) What are the main advantages and disadvantages of single sideband (SSB) modulation compared with ordinary amplitude modulation (AM).
For a PCM system, the value of the minimum transmission bandwidth is 25 kHz and the maximum frequency of the input waveform is 5 kHz. Estimate the total number of levels in the uniform quantizer present.
C- Put TRUE or FALSE for only TWO of the following and say why: 1. PCM modulation is very complex technique compared to DM. 2. Envelope detection for PSK signal is possible via using DPSK. 3. A frequency reuse factor can be reached to "1" as a maximum value.
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D. Use the small signal circuit to find the expression for Vo/Vin. Consider the Body Effect of Mi but, neglect the channel length modulation. Voo WWD M₁ V₂