REALIZATION OF TRIGONOMETRIC FUNCTIONS WITH HIGH-SPEED USING CORDIC ALGORITHM
International Research Journal of Modernization in Engineering Technology and Science · 2024
In this work, the Coordinate Rotation Digital Computer (CORDIC) technique is effectively used to build exponential and converse exponential functions.In many different applications, including signal processing, image processing, and video processing, the exponential function is important.This paper tackles the issues of area and delay optimization that arise while implementing exponential functions.To improve the accuracy of the results, the input range is expanded from -7 to -7 and a scaling factor of 65536 is used.The original floatingpoint output values go through a similar scaling procedure to represent actual values.The implementation of the exponential function makes use of the CORDIC algorithm and performs addition, subtraction, and shift operations, all of which improve efficiency.Pipelining further increases the throughput of the model.Using the algorithm is instantiated VHDL in the Stratix II FPGA, and synthesis is performed with Quartus-II 9.1 SP2 software, demonstrating the usefulness and effectiveness of the suggested method.