Problem 7.2 Consider the signal x(t) = sinc(6t) sinc(4t). (a) Sketch the spectrum Ŷ (ƒ). (b) Consider the impulse train sampled signal xs(t) = Σ x(nT)&(t - nT) n=-∞ where T = ½. Sketch the spectrum of Ŷs(f). (c) The sampled signal x,(t) is passed through an LPF HLPF(ƒ) = (f) to obtain the signal x,(t). Sketch the spectrum Ŷ, (ƒ) and give an explicit expression for the time domain signal x(t). Is it the same as the original signal x(t) (up to scale)? (d) Repeat (b) and (c) for T = 1 12° (e) What is the maximum value of T for which x(t) = x(t) (up to scale)?

Find the transient current (a general solution) in the RLC-circuit in the figure below for the given data. R = 6 N, L = 0.2 H, C = 0.025 F, E = 190 sin (10t) V R E(t) = E, sinot Write arbitrary constants as C1 and C2. ll

Q4. Consider the circuit shown in Figure P7.30. The time constant associated with Cc2 is a factor of 100 larger than the time constant associated with Cc1. (a) Determine CCi such that the -3 dB frequency associated with this capacitor is 20 Hz. (b) Find Cc2. Vcc=5 V R = 1.2 k2 Rs = 300 2 Ccz R2 = 1.2 k2 RE= 50 2 R= 10 2 Figure P7.30

! Required information x(t) A - The given figure is a graph of one fundamental period of a periodic function x(f). A CTFS harmonic function cx[k] is found based on the representation time being the same as the fundamental period To, where A1 = 5, A2 = -3, and To = 5. Determine the numerical value of cx[0]. The numerical value of cx[O] is

The spectrum associated with Step signal 7 The spectrum associated with an impulse signal 10 Choice aoption The spectrum associated with an exponential signal The spectrum associated with rectangular signal

SOLVE USING MATLAB PLEASE!

Example: If the analog signal to be quantized is a sinusoidal waveform, that is x(t) = Asin(2 x 103nt) and if the bipolar quantizer uses m bits, determine the SNR in term %3D of m bits

Given the continuous-time, continuous-amplitude signal waveform x(1) -3 sample at discrete values of time and plot the discrete-time signal x[n]. Also, extract the even and odd parts of x[n]. Please show the complete and detailed solution. Thank you

Why is there a virtual origin for the impulse voltage wave instead of an actual origin?

A-The analog signal s(t) = 10 cos (20 pit) cos (200 pi*t) is sampled at the rate of 250 samples per seconds. Determine the following: a- The maximum frequency component present in the analog signal. b-Nyquist rate. B- An analog signal having single frequency as 3 kHz is sampled with 5 kHz signal. Describe its frequency spectrum. What will be the output if the sampled signals are passed through a low-pass filter having cutoff frequency at 2.5 kHz? Q2] A-Discrete samples of an analog signal are uniformly quantized to PCM. If the maximum value of the analog sample is to be represented within 0.05% B- Show that the signal-to-quantization noise ratio in an n-bit binary PCM system, accuracy, find the minimum number of binary digits required per sample. where n is the number of bits uniquely assigned to each of the L quantization levels (L = 2n) is 1.76+6n dB with a sinusoidal analog signal input. 15 Q3] A- A delta modulator system is designed to operate at fi ve times the Nyquist rate for an…