## Chapter: DT Fourier series (DTFS)

**( Note: A Chapter with low Weightage)**

#### Topics to be prepared

#### I want to Just Pass:

#### I want to get good Marks: (As above and plus)

- Definition and properties of DTFS.
- Finding DTFS coefficients
- Representation of Periodic Sequences by DTFS
- Magnitude & Phase Spectrum

#### I want to Score Maximum: (As above and plus)

## Chapter: Discrete Fourier Transforms (DFT)

**( Note: A very easy and high scoring chapter. A must for all students who want to pass DSPP)**

**Topics to be prepared**

#### I want to Just Pass:

- Definition and Properties of DFT.
- Problems based on
- Computation of DFT and IDFT
- Circular Convolution using DFT / IDFT
- Evaluating DFT using Properties of DFT
- Relation between Z-transform, DTFS & DTFT

#### I want to get good Marks: (As above and plus)

#### I want to Score Maximum: (As above and plus)

## Chapter: Fast Fourier Transforms (FFT)

**(**__Note__: High scoring chapter. A must for all students who want to pass DSPP)

__Note__: High scoring chapter. A must for all students who want to pass DSPP)

#### Topics to be prepared

#### I want to Just Pass:

- Radix-2 Decimation In Time (DIT) & Decimation In Frequency (DIF) FFT for N = 4, 6, 8 with Flow Graph (or Butterfly diagram).
- Inverse FFT
- Problems based on
- Computation of DFT and IDFT by FFT
- Circular Convolution using DFT/ IDFT by FFT
- Comparing Computational Complexity between DFT and FFT

#### I want to get good Marks: (As above and plus)

- Twiddle Factor and its Properties
- DIT-FFT and DIF-FFT algorithms and derivation for N = 4, 8

#### I want to Score Maximum: (As above and plus)

- Composite FFT algorithms and derivation for N = 6 (3 ´ 2 or 2 ´ 3) for both DIF & DIT.
- Composite FFT algorithms and derivation for N = 9 (3 ´ 3)

## Chapter: IIR Digital Filters

**( Note: A Major Chapter with high Weightage)**

**Topics to be prepared**

#### I want to Just Pass:

- Mapping of S-plane to Z-plane
- Impulse Invariance Method and Aliasing
- Bilinear Transformation (BLT) Method and Frequency Warping and Pre-Warping.
- Analog and Digital Frequency Transformations
- Analog filter approximations: Butterworth Filters
- Design of IIR digital filters from Analog filters – Order of Filter, Cut-off Frequency, Un-normalized and Normalized Transfer Function

#### I want to get good Marks: (As above and plus)

- Analog filter approximations: Chebyshev Filters

#### I want to Score Maximum: (As above and plus)

## Chapter: FIR Digital Filters

**( Note: A Major Chapter with high Weightage)**

#### Topics to be prepared

#### I want to Just Pass:

- Linear Phase Filters – Phase and Group Delay.
- location of the zeros of linear phase FIR filters.
- Characteristics of FIR digital filters.
- Frequency Response.
- Design of FIR digital filters using window techniques (Rectangular and Hamming), Frequency Sampling Technique.
- Gibbs phenomenon.
- Comparison of IIR and FIR filters

#### I want to get good Marks: (As above and plus)

- Design of FIR digital filters using window techniques (Triangular, Hanning and Blackman)

#### I want to Score Maximum: (As above and plus)

- Design of FIR digital filters using window techniques (Kaiser Window)

## Chapter: Finite Word Length Effects in Digital Filters

**(Note: A chapter from which mostly theory questions are asked)**

**Topics to be prepared**

#### I want to Just Pass:

- Number representation: Fixed Point, Sign-Magnitude, One’s Complement, Two’s Complement, Floating Point Numbers.
- Quantization by truncation / rounding.
- Effects due to truncation and rounding.
- Input Quantization Error.
- Product Quantization Error.
- Co-efficient Quantization Error.
- Limit Cycle Oscillations – Zero Input, Overflow Limit Cycle, Scaling, Dead Band.

#### I want to get good Marks: (As above and plus)

- Quantization Effects in the computation of the DFT.
- Problems based on
- Quantization Error
- Limit Cycle Oscillations

#### I want to Score Maximum: (As above and plus)

- Quantization in Floating Point realization IIR digital filters.
- Finite Word Length Effects in FIR digital filters.
- Quantization Errors in FFT Algorithms.

## Chapter: Introduction to DSP Processors

**(**__Note__: Only Theory is asked from this chapter)

__Note__: Only Theory is asked from this chapter)

**Topics to be prepared**

#### I want to Just Pass:

- Difference between DSP Processor & Microprocessor.
- Need for DSP Processor.
- Von-Neumann Architecture, Harvard Architecture and modified Harvard architecture.
- VLIW architecture and Pipelining.
- Special Addressing Modes

#### I want to get good Marks: (As above and plus)

- Fixed Point and Floating-Point DSP processor.
- Multiple Access Memory.
- Multiport Memory.
- On-Chip Peripherals.
- Multiplier and Multiplier Accumulator (MAC)

#### I want to Score Maximum: (As above and plus)

- Modified Bus Structures and Memory Access Schemes in DSPs

## Chapter: Features of TMS 320c67xx DSP processor

**( Note: Only Theory is asked from this chapter)**

**Topics to be prepared**

#### I want to Just Pass:

- Architecture of TMS 320c67xx DSP processor.
- Computational Units.
- Data Addressing Modes.
- Salient Features of TMS 320c67xx DSP processor

#### I want to get good Marks: (As above and plus)

- Bus Architecture Memory
- Address Generation Unit
- Program Sequencer
- Features of External Interfacing
- On-Chip Peripherals

#### I want to Score Maximum: (As above and plus)

- Interrupts
- Hardware Timers
- Host Interface Port
- Clock Generators
- Program Control

## Chapter: Applications of DSP Processors

#### (__Note__: Only Theory is asked from this chapter)

**Topics to be prepared**

#### I want to Just Pass:

- Speech Processing: Speech Analysis and Speech Coding, Speech recognition
- Sub Band Coding
- Digital Processing of Audio Signals.
- Radar Signal Processing: Signal Design

#### I want to get good Marks: (As above and plus)

- Radar Principles
- Radar System and Parameter Considerations
- Channel Vocoder
- Homomorphic Vocoder