Design of Cascaded-Integrator-Comb Filter for PSK Modem

National Conference on Recent Advances in Electronics & Communication Engineering (RACE-05), Bhimavaram, India, 2005

9 Pages Posted: 7 Nov 2011

See all articles by Manoj Kumar Shukla

Manoj Kumar Shukla

Harcourt Butler Technical University

Ela Chandel

affiliation not provided to SSRN

Parul Goel

affiliation not provided to SSRN

Date Written: June 24, 2005

Abstract

This paper discusses the implementation of 'Cascaded-Integrator-Comb filter' (CIC) which is a higher order decimation filter for the pulse-shaping of the digital data for PSK modem. They have found a particular niche in digital transmitters and receivers.

The narrow-band extraction from wide band sources requires two basic signal processing procedures: decimation and interpolation. Large rate changes require fast multipliers and very long filters.

This paper presents a Hogenauer devised flexible, multiplier-free Cascaded-Integrator-Comb filter suitable for hardware implementation that can also handle arbitrary and large rate changes. The architecture introduced here includes carry-save implementation of recursive integrator stages, comb stages and a programmable counter for the programmable decimator (21 to 26) which produces selectable power of two output clocks. Carry-save implementation of recursive integrator stages reduces critical path to two full-adder delays between registers. This produces high speed operation, reduces the required chip area, decreases the critical path and reduces the power dissipation.

The project also includes implementation of CIC filter using Verilog and simulation using Maxplus, Xilinx Model and MATLAB. The CIC filter is designed and tested meeting the desired performance goals.

Suggested Citation

Shukla, Manoj Kumar and Chandel, Ela and Goel, Parul, Design of Cascaded-Integrator-Comb Filter for PSK Modem (June 24, 2005). National Conference on Recent Advances in Electronics & Communication Engineering (RACE-05), Bhimavaram, India, 2005. Available at SSRN: https://ssrn.com/abstract=1955820 or http://dx.doi.org/10.2139/ssrn.1955820

Manoj Kumar Shukla (Contact Author)

Harcourt Butler Technical University ( email )

Nawabganj
Kanpur, Uttar Pradesh 208002
India

HOME PAGE: http://www.manojkrshukla.weebly.com

Ela Chandel

affiliation not provided to SSRN

No Address Available

Parul Goel

affiliation not provided to SSRN

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