Signal Processing Application

This experiment was performed in groups of four. Our group topic was Comb filter.
Group Members: Natasha Choudhary, Umesh Gawale, Pranav Ghaisas, Tejashree Gore

Problem definition: To implement a comb filter to eliminate noise signal

Individual experiment was to review one IEEE paper and one patent on the above topic.

IEEE paper review:
Published in: International Conference of Microelectronics, Communication
Tittle: Design of cascaded integrator comb filter using single adder and subtractor.
Authors: Gourav Sarkar, Debjyoti Mallik, H.S. Jatana, Department of Space, Mohali, India.
Summary: The paper proposed two architectures of a cascaded integrator comb(CIC) filter, one using tri-state buffers, other with multiplexers. These architectures were shown to occupy lesser areas on chip than compared to the traditional design. This can be used in ASIC designs.

Patent review 
Application no: 09/317,761
Patent no: 6,034,628
Date of Patent: May 24,1999
Inventor: Dieter Daxelmayr , Villach, Austria
Summary: The comb filter model proposed consists of three series connected integrators such that the first and last integrator receive digital data stream at high sampling frequency in order to yeild digital data stream at low sapling frequency. This is also known as a decimation comb filter.

Implementation of above problem definition was done on scilab as a group experiment.

Note:
1. IEEE paper was downloaded from sci-hub.io
2. Patent was downloaded from freepatentsonline.com

https://drive.google.com/open?id=0Byo4VUtNmtKBTGVIMWI0eHlSdk0