Minimum-span constant modulus array for a smart antenna testbed

The realisation of an efficient algorithm for a real-time smart antenna testbed based on DECT technology is considered. The testbed is based on a multistage constant modulus array, a blind adaptive beamformer and an adaptive signal canceller that removes the captured signal from the input signals. Based on the Wiener model of convergence, a reduced form of the CM array has been developed that takes advantage of the reduced rank of the input correlation matrix for additional stages. Computer simulations confirm the functionality of this algorithm, and convergence and sensitivity to fading are also discussed.