Maximum and minimum values of y(t):
For given analog signal xa(t) what is the maximum frequency of this signal and what is the Nyquist rate for this signal (choose the minimum one) xa(t)=5 cos(310pi t) + 8 sin(420pi t)
P3 – An angle modulated signal is given by ?(?) = 80cos[2? ∗ 108 ? + 10 sin(4? ∗ 103 ?)] a) If the signal is a PM modulated signal, determine the maximum phase deviation. b) If the signal is a FM modulated signal, determine the maximum frequency deviation. c) Assume that the modulating frequency in the signal given is tripled, and the signal is an FM signal with the same frequency deviation. Write an equation for the signal.
The output signal from an AM modulator is given by: Find: a) determine the modulating signal and the carrier signal, b) determine the modulation index, c) determine the ratio of power in the sidebands to the power in the carrier, d) determine the ratio of the sidebands' power to the total power.
Given a random ( Find mean of the random signal X.That inEx-7 ) Find the ACF of the random signal Xo). That is. R..)-7 random signal Xo) WSS or not? Why?
Given a random ( Find mean of the random signal X.That inEx-7 ) Find the ACF of the random signal Xo). That is. R..)-7 random signal Xo) WSS or not? Why?
An analog signal is given as below x(t) = 10sin 4rtt The signal is sampled by two different frequencies f, = 1Hz, f, = 10Hz respectively, and the output are yı, Yz. (i) Sketch signal x(t) in the time domain. (3 marks) (ii) Sketch frequency spectrum of x(t). (3 marks) (iii) After sampling, the continuous signal is converted to a discrete signal. Draw the two discrete signals Yı, Y2: (4 marks) (iv) Discuss whether f1, f, can successfully sample the...
4. (25 pt) Given a signal, g(t) 10eStu(t) (a) Find the Fourier transform of the signal, G(). (b) What is the Energy Spectral Density (ESD) of the signal, e().Plot the variation of ESD with frequency using the frequency range of [-3,3]. (c) Determine the signal energy Eg of the signal using Parseval's Theorem.
Given a signal g(t) = 20 cos(140πt): a. Calculate the signal bandwidth. b. Can the Signal be recovered if sampled at a rate (fs) of 200 samples per second? Justify your answer mathematically. c. With fs = 200 samples per sec and quantization levels (L) = 8, calculate the first 3 samples, first 3 quantized samples, and the binary codes of the first 3 samples. Assume sampling starts at t=0 and natural binary code is used.
Given a signal to a radio receiver consists of 200uV of signal power and 2 uW of noise power. If the receiver contributes an additional 160 W of noise, NR, and has a power gain of 20 dB. ) Calculate the input SNR, (ii) the output SNR and (iii) the receiver's NE
Consider the following Amplitude Modulation (AM) signal given by Xc(t)=Ac[1 + μx(t)]cos(wct) where x(t) is the message signal, and μ the modulation index. Also consider the following message signal x(t) for parts (a) and (b)' shown in Fig 1. a) Provide a sketch of the AM signal when the modulation index μ < 1. b) Provide a sketch of the AM signal when the modulation index μ = 1. c) Provide a sketch of the AM signal when the modulation index μ > 1. d) If the bandwidth...
14. Given a sinusoidal modulating signal with frequencies f," 10 kHz and a carrier signal of 100 MHz, determine the bandwidth of FM for the three cases (amplitudes: 1. 10, 100, 1000) when the maximum frequency deviation is 50 kHz and k,-2? × 100 rad/sec/volt.