Abstract
This report discusses the behavior of an LMS adaptive array when receiving a phase modulated interference signal. A mathematical technique is presented for computing the time behavior of the array weights with such interference. This technique is then used to study the behavior of a 2-element array receiving an interference signal with sinusoidal phase modulation. The effects of the interference phase modulation on desired signal modulation, output SINR (signal-to-interference-plus-noise ratio) and desired signal bit error probability are discussed. (Author)