Introduction - If you have any usage issues, please Google them yourself
Digital signal processing (DSP) algorithms exhibit an increasing need for the
e#cient implementation of complex arithmetic operations. The computation of
trigonometric functions, coordinate transformations or rotations of complex valued
phasors is almost naturally involved with modern DSP algorithms. Popular application
examples are algorithms used in digital communication technology and in
adaptive signal processing. While in digital communications, the straightforward
evaluation of the cited functions is important, numerous matrix based adaptive
signal processing algorithms require the solution of systems of linear equations, QR
factorization or the computation of eigenvalues, eigenvectors or singular values. All
these tasks can be e#ciently implemented using processing elements performing vector
rotations. The COordinate Rotation DIgital Computer algorithm (CORDIC)
offersthe opportunity to calculate all the desired functions in a rather simple and
elegant way.