• Extensively used in image processing ,RF demodulation and spectrum analysis equipment
• Conversion of signals in time domain to frequency domain
• Obtain the spectral analysis of periodic signals.
• Image Compression in jpeg format

       Course - A1or A1.1: Introduction to VHDL / Verilog


CONTENTS

Designing FFT & IFFT using following techniques:-

• Radix-2.
• Radix-4.
• Split-radix.

The designing of FFT includes following steps: -

1. Designing the butterfly component for complex i/p.
   
2. Designing parallel FFT matrix, for complex i/p, with Butterfly component.
   
3. Deriving the complex Twiddle factors.
   
4. Conversions of twiddle factors to integer.    
5. Scale factor for the integer twiddle factors and scaling the multiplication o/p.
   
6. Power calculation and scaling.
   
7. Students will be introduced to FFT theory and then using ready made PWM and RF modulator/demodulator library modules, will be taught the FFT design.
   
8. Students will incorporate the design into a readymade BPSK RF demodulator and download the design onto a VLSI kit to observe the output.
   Note-The deserialisation of i/p data serialization of o/p data and its associated control logic is too complex for the scope of this course and will be taken from my library.