Problem 3: If the following pulse train represents a TDM signal for 4 messages that are sent as pulse amplitude modulation (PAM). If each message is band limited to and sampled at 50% above the Nyquist frequency. 12 45 7 8 10 11 13 14 ........ Time [msec] What is the ratio of the system clock frequency to the message maximum frequency b. If these pulses are passed through a raised-cosine filter whose roll-off factor is 0.75. Determine the resulted signal bandwidth. a.

Problem 3: If the following pulse train represents a TDM signal for 4 messages that are sent as pulse amplitude modulation (PAM). If each message is band limited to and sampled at 50% above the Nyquist frequency. 12 45 7 8 10 11 13 14 ........ Time [msec] What is the ratio of the system clock frequency to the message maximum frequency b. If these pulses are passed through a raised-cosine filter whose roll-off factor is 0.75. Determine the resulted signal bandwidth. a.

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...

See similar textbooks

Similar questions

C. Phase reversal D. Modulator's sensitivity factor 39. In linear modulation, the intelligent signal is conveyed in A. The amplitude of the transmitted signal BA The sideband components of the transmitted wave C. The phase deviation modulated signal D. None of the above | 40. What communication technique or modulation scheme make use of channel noise as an added advantage? A. Asynchronous shift key modulation B. Vestigial sideband modulation C. Spread-spectrum D.4 Wideband Frequency modulation |41. Narrowband FM and AM share a lot of similarities except that , A+ The lower side frequencies are 180° out of phase. B. The upper side frequencies are 180° out of phase. C. The sideband frequencies are 180° out of phase. D. None of the above | 42. Modulation is done in , A. Transmitter B. Radio receiver C. Between transmitter and radio receiver D. None of the above |43. At 100 % modulation, the power in each sidebands is, A 50 % В. 40 % С. 60 % D 25 % | 44. In a TV transmission, picture is…
Problem1: the figure shows multiple modulation schemes for the signal that is given by the dashed line sinusoidal function, the X-axis is the time axis is seconds and the Y-axis is the amplitude. Answer the following: 1. What is the value of the duty cycle in A? 2.What is the quantization noise in a modulator that uses a 4-bits register for the analog to digital conversion of the given sinusoidal signal?
The figure shows the AM modulated signal. What is modulation index?
How might one determine general-direction MTF (modulation transfer function) to determine if there are any angular sensitivities to a camera system?
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).
B-Twenty speech signal each bandlimited to 4 kHz are FDM/SSB multiplexed, then RF modulated by a main carrier using AM modulator. Draw the block diagram and find the minimum bandwidth of multiplexing and final transmission bandwidth.
Q. Suppose that you have an angle modulaton system with an input signal £01) s wiangle wave of fundamental frequency 5 kiz and its most power is concentrated in the frst third harmonics, the masimum and minimu voltage ae | and -1 espectively. where one period equation of theinput s o[BIl 0
Digital communications 2
i need the answer quickly