ECE 380 Introduction to Communication Systems Homework Assignment 3 Due: No need to submit Problem 1. Consider the periodic signal shown in Figure 1. Figure 1: Signal for Problem 1. a) Find the power spectral density of the signal. b) Find the power and the autocorrelation function of the signal. Draw the autocorrelation function (e.g., …
ECE 380 Introduction to Communication Systems Homework Assignment 5 Due: No need to submit Problem 1. The message signal m(t), whose Fourier transform is shown in Figure 1, is transmitted from Point A to Point B. Figure 1: Frequency spectrum for the message in Problem 2. a) If LSSB AM is employed, what is the …
ECE 380 Introduction to Communication Systems Homework Assignment 4 Due: 16:00pm Tuesday, March. 7, 2023 Problem 1. In conventional AM, the carrier is c(t) = Ac cos(2πfct) and the message signal is m(t) = sinc(t) + sinc2(t). Let the modulation index be ka = 1 and fc ≫ 1. a) Find the frequency-domain representation and …
ECE 380 Introduction to Communication Systems Homework Assignment 8 Due: 16:00pm Tuesday, March. 28, 2023 Problem 1. The value of a message signal varies within [−5, 5]. (a) Design a 5-level uniform quantizer for the message by specifying the quantization regions and quantization levels. (b) The following sequence of message samples is input to the …
ECE 380 Introduction to Communication Systems Homework Assignment 2 Due: 16:00pm Tuesday, Feb. 14, 2023 Problem 1. Given g1 (t) ⇌ G1 (f ), g2 (t) ⇌ G2 (f ), please use the definitions of FT and inverse FT to proof the the following FT properties. a) The differentiation property: d g1(t) ⇌ j2πfG1(f). dt …
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ECE 380 Introduction to Communication Systems Homework Assignment 10 Due: No need to submit Problem 1. In an M-ary ASK digital communication system, the channel has bandwidth 1400 Hz. Select a symbol rate and a signal constellation size to achieve a 9600 bit per second error-free signal transmis- sion. Problem 2. test. (a) Find the …
ECE 380 Introduction to Communication Systems Homework Assignment 7 Due: 14:00pm Tuesday, Mar. 21, 2023 Problem 1. Specify the Nyquist rate and the Nyquist interval for the signal g(t) = sinc2(400t). Problem 2. Consider sampling of the sinusoidal wave g(t) = sin(πt). Determine the Fourier transform of the instantaneous sampled signal for the following sampling …
ECE 380 Introduction to Communication Systems Homework Assignment 6 Due: 16:00pm Tuesday, Match 14, 2021 Problem 1. A baseband signal m(t) is the periodic sawtooth signal shown in Fig. 1, where T0 = 1, A = 1. (a) Sketch the FM wave for this signal m(t) if fc = 4 and kf = 10. (b) …
ECE 380 Introduction to Communication Systems Homework Assignment 1 Due: 16:00pm Tuesday, Feb. 7, 2023 Problem 1. Find the inverse Fourier transforms of G(f ) for the spectra in Figure 1 (a) and (b). Note: G(f) = |G(f)|ej∠G(f). Figure 1: Signals for Problem 1. Problem 2. Find the Fourier transforms of the signals g1(t) and …
comp2620 logic puzzle Faulty Circuit Faulty Circuit Logician Series This problem illustrates the possibility of using logic as a tool for diagnosis. The solver has to deduce from the specification given together with some test data which component or components in a boolean circuit may be incorrect. Of course, the assumption that the number of …