, T. Pitchaiah, P V Sridevi. 2018. “Design and FPGA Implementation of Variable FIR Filters Using the Spectral Parameter Approximation and Time-Domain Approach”. International Journal on Future Revolution in Computer Science &Amp; Communication Engineering 4 (3):338-42. http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1317.