A new method for the design of multi-sine excitations for the assessment of non-linear devices

This paper presents a novel way of generating multi-sine signals for the representation of modern communication signals. The multi-sine signals are in very good agreement with the original signals with regards to their statistical characteristic (CCDF) and spectrum and have shown to accurately predict the ACPR response for non-linear systems. Investigations of the novel approach on IS-95 and WCDMA signals have shown that it could be used to simulate different types of communication signals. The presented approach is based on spot correlation to compute the difference between the target communication signal and multi-sine signals. Consequently, this new approach determines the phases and amplitudes of the original communication signal and further optimises the initial values according to statistical properties of the target signal.