In this Signals & Systems Lab the student will learn

1. Program to generate the discrete sequences

(i) unit step

(ii) unit impulse

(iii) ramp

(iv) periodic sinusoidal sequences. Plot all the sequences.

2. Find the Fourier transform of a square pulse .Plot its amplitude and phase spectrum.

3. Write a program to convolve two discrete time sequences. Plot all the sequences. Verify the result by analytical calculation.

4. Write a program to find the trigonometric Fourier series coefficients of a rectangular periodic signal. Reconstruct the signal by combining the Fourier series coefficients with appropriate weightings.

5. Write a program to find the trigonometric and exponential Fourier series coefficients of a periodic rectangular signal. Plot the discrete spectrum of the signal.

6. Generate a discrete time sequence by sampling a continuous time signal. Show that with sampling rates less than Nyquist rate, aliasing occurs while reconstructing the signal.

1. Program to generate the discrete sequences

(i) unit step

(ii) unit impulse

(iii) ramp

(iv) periodic sinusoidal sequences. Plot all the sequences.

2. Find the Fourier transform of a square pulse .Plot its amplitude and phase spectrum.

3. Write a program to convolve two discrete time sequences. Plot all the sequences. Verify the result by analytical calculation.

4. Write a program to find the trigonometric Fourier series coefficients of a rectangular periodic signal. Reconstruct the signal by combining the Fourier series coefficients with appropriate weightings.

5. Write a program to find the trigonometric and exponential Fourier series coefficients of a periodic rectangular signal. Plot the discrete spectrum of the signal.

6. Generate a discrete time sequence by sampling a continuous time signal. Show that with sampling rates less than Nyquist rate, aliasing occurs while reconstructing the signal.

- Familiarization with electronic components (Active & Passive) &electronic equipments (Multi-meters, CROs and functiongenerators)
- Study of the V-I characteristics of P-N junction diode & Calculate DC & AC resistance.
- Construction of half-wave rectifier and full wave rectifier circuits (with &without Filter) & study of their output waveforms by CRO and calculation of efficiency and ripple factor
- a) Construction of positive, negative and biased clipper circuits & study of their output waveforms by CRO.

b) Construction of positive and negative clamper circuits & study of their output waveforms by CRO

1. BJT Bias circuit –Design, construction & test

2. JEET Bias circuits – Design, construction and test.

3. Design, Build and test of BJT common-emitter circuit –D.C and A.C performance, A.C voltage gain, input impedance and output impedance with bypassed and unbypassed emitter resistor.

4. Design, Build and test of BJT emitter-follower-D.C and A.C performance voltage gain, input impedance and output impadance investigated.

5. Design, Build and Test of JFET common- source and common-drain amplifiers : D.C and A.C performance, Voltage gain, input impedance and output unpedance investigated.

6. Frequency response of a common –emitter amplifier: low frequency, high frequency and mid frequency response.

7. feed back amplifiers : series and shunt feedback types- input and output impedance and A.C gain with and without feedback.

8. Differential amplifiers circuits: D.C bias and A.C operation without and with current source.

9. OP- Amp Schmitt Trigger Circuits.

2. JEET Bias circuits – Design, construction and test.

3. Design, Build and test of BJT common-emitter circuit –D.C and A.C performance, A.C voltage gain, input impedance and output impedance with bypassed and unbypassed emitter resistor.

4. Design, Build and test of BJT emitter-follower-D.C and A.C performance voltage gain, input impedance and output impadance investigated.

5. Design, Build and Test of JFET common- source and common-drain amplifiers : D.C and A.C performance, Voltage gain, input impedance and output unpedance investigated.

6. Frequency response of a common –emitter amplifier: low frequency, high frequency and mid frequency response.

7. feed back amplifiers : series and shunt feedback types- input and output impedance and A.C gain with and without feedback.

8. Differential amplifiers circuits: D.C bias and A.C operation without and with current source.

9. OP- Amp Schmitt Trigger Circuits.