What are the major classifications of the signal? Define discrete time signals and classify them. Define continuous time signals and classify them. Define continuous time unit step and unit impulse. Define unit ramp signal.

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What are the major classifications of the signal? Define discrete time signals and classify them. Define continuous time signals and classify them. Define continuous time unit step and unit impulse. Define unit ramp signal. Define periodic signal and non-periodic signal. Define even and odd signal? Define Energy and power signal. Define unit pulse function. Define continuous time complex exponential signal. What is continuous time real exponential signal.

What is continuous time growing exponential signal? State the BIBO criterion for stability. Write down the exponential form of the Fourier series representation of a Periodic signal?

Write down the trigonometric form of the fourier series representation of a periodic signal? Write short notes on dirichlets conditions for fourier series. State Time Shifting property in relation to fourier series. PART — B 1. Determine whether the following systems are static or Dynamic, Linear or Nonlinear,Shift variant or Invarient, Causal or Non-causal, Stable or unstable.

Explain about the properties of continuous time fourier series. Find the fourier coefficients of the given signal. Find the exponential series of the following signal. Find which of the following signal are energy or power signals.

Explain the properties of Discrete time fourier serier 8 9. Find the cosine fourier series of an half wave rectified sine function. Explain the classification of signals with examples. Define continuous time system. Define Fourier transform pair. Write short notes on dirichlets conditions for fourier transform. Explain how aperiodic signals can be represented by fourier transform. State convolution property in relation to fourier transform.

What is the use of Laplace transform? What are the types of laplace transform? Define Bilateral and unilateral laplace transform.

Define inverse laplace transform. State the linearity property for laplace transform. State the time shifting property for laplace transform. Region of convergence of the laplace transform. What is pole zero plot. State initial value theorem and final value theorem for laplace transform. State Convolution property. Define a causal system. What is meant by linear system? Define time invariant system. Define stable system? Define memory and memoryless system. Define invertible system.

What is superposition property? Determine the inverse laplace of the following functions. Explain about the classifications of continuous time system.

A system is described by the differential equation. Explain the properties of laplace transform 8 7. The input and output of a causal LTI system are related by the differential equation.

Consider a causal LTI system with frequency response. Why CT signals are represented by samples. What is meant by sampling.

State Sampling theorem. What is meant by aliasing. What are the effects aliasing. How the aliasing process is eliminated. Define Nyquist rate. Define sampling of band pass signals. Define Z transform.

What are the two types of Z transform? Define unilateral Z transform. What is region of Convergence. What are the Properties of ROC. What is the time shifting property of Z transform.

What is the differentiation property in Z domain. State convolution property of Z transform. State the methods to find inverse Z transform. State multiplication property in relation to Z transform. What is the relationship between Z transform and fourier transform. What is meant by step response of the DT system. State and prove the sampling theorem. Also explain how reconstruction of original signal is done from sampled signal 16 2.

Explain the properties of z-transform 8 5. Give the relationship between z-transform and fourier transform. Define Transfer function of the DT system. Define impulse response of a DT system. State the significance of difference equations. Write the differece equation for Discrete time system. Define frequency response of the DT system.

What is the condition for stable system. What are the blocks used for block diagram representation. State the significance of block diagram representation. What are the properties of convolution? State theCommutative properties of convolution? State the Associative properties of convolution State Distributive properties of convolution Define causal system. What is the condition for causality if H z is given. What is the condition for stability if H z is given. How the discrete time system is represented.

Give the properties of convolution 6 2. Find the impulse response and step response. Find the output y n of a linear time invariant discrete time system specified by the equation. Find the frequency response of the following causal system. Give the summary of elementary blocks used to represent discrete 4 time systems.

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