APPARATUS AND METHOD FOR COMPLEX NUMBER COMPUTATION USING SIMD ARCHITECTURE

摘要

PURPOSE: An apparatus and a method for complex number computation using a SIMD(Single Instruction Multiple Data) structure are provided to implement serial or parallel computation of real number and imaginary number parts of complex numbers. CONSTITUTION: Complex number computation units(120,150,180) implements first to third computation of first to fourth complex numbers. The first computation includes first to fourth parallel multiplication that multiplies every two of eight numbers, where the eight numbers are the rear number and imaginary number parts of the first to fourth complex numbers. The second computation calculates a first sum of the first and third multiplication and a second sum of the second and fourth multiplication. The third computation subtracts the second sum from the first sum or adds the second sum to the first sum.