HDL Implementation of Sine-Cosine Function Using CORDIC Algorithm in 32-Bit Floating Point Format
作者： Solomon Raju Kota , Ashutosh Gupta , Ashutosh Gupta , Manoj Duhan
DOI:
关键词: Mixed radix 、 Sine 、 CORDIC 、 Trigonometric functions 、 Binary number 、 Single-precision floating-point format 、 Mathematics 、 Rotation (mathematics) 、 Floating point 、 Arithmetic
摘要: This paper proposes a novel way to implement sine and cosine function in Coordinate Rotation Digital Computer (CORDIC) algorithm with efficient architectures. It is class of shift-add algorithms for rotating vectors plane, which usually used the calculation trigonometric functions, multiplication, division conversion between binary mixed radix number systems DSP applications, such as Fourier transform. The Jack E Volder’s CORDIC derived from general equations vector rotation. values functions are calculated IEEE-754-1985 standardized single precision floating point format achieving better precision, accuracy portability result. A normalization scheme reduces error requires no extra hardware. has been implemented FPGA using VHDL.
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