Hardware Implementation of Stockwell Transform and Smoothed Pseudo Wigner Ville Distribution Transform on FPGA using CORDIC Algorithm
B Murali Krishna1, B.T. Krishna2, K Babulu3
1B Murali Krishna*, Assistant Professor, Department of ECE, Sri Vasavi Engineering College, Green Pedatadepalli, Tadepalligudem (A.P), India.
2B.T. Krishna, Professor, Department of ECE, University College of Engineering Kakinada, Jawaharlal Nehru Technological University, Vizianagaram, (A.P), India.
3K Babulu, Professor, Department of ECE, University College of Engineering Vizianagaram, Jawaharlal Nehru Technological University, Vizianagaram, (A.P), India.
Manuscript received on December 18, 2021. | Revised Manuscript received on December 23, 2021. | Manuscript published on January 30, 2022. | PP: 57-60 | Volume-10 Issue-5, January 2022. | Retrieval Number: 100.1/ijrte.E67050110522 | DOI: 10.35940/ijrte.E6705.0110522
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: A comparison of linear and quadratic transform implementation on field programmable gate array (FPGA) is presented. Popular linear transform namely Stockwell Transform and Smoothed Pseudo Wigner Ville Distribution (SPWVD) transform from Quadratic transforms is considered for the implementation on FPGA. Both the transforms are coded in Verilog hardware description language (Verilog HDL). Complex calculations of transformation are performed by using CORDIC algorithm. From FPGA family, Spartan-6 is chosen as hardware device to implement. Synthetic chirp signal is taken as input to test the both designed transforms. Summary of hardware resource utilization on Spartan-6 for both the transforms is presented. Finally, it is observed that both the transforms S-Transform and SPWVD are computed with low elapsed time with respect to MATLAB simulation.
Keywords: Transforms, Chirp signal, FPGA and CORDIC.
Scope of the Article: Electronics and Telecommunication.