Adaptive spectrum controlled waveforms for cognitive radar

This paper presents and evaluates, by simulation, the feasibility of a new type of spectrum controlled waveforms for use in a cognitive radar operating in a spectrally dense environment. The addressed scenario is constituted of a wideband radar with cognitive functionalities and a number of narrow band communication services working in frequency hopping mode. The paper proposes the use of a special type of waveform, namely Adaptive Spectrum Controlled Waveform (ASCW), which can carry out the cognitive functionalities of the wideband radar, by using the frequency nulling technique to minimize the effect of the interference of the coexisting communication services.