with good results. Orthogonal signals There are a variety of orthogonal signal sets used in the field of MIMO radar. One of the proposed signal sets is the spectrally interleaved multi-carrier signal, which is a modified version of orthogonal frequency-division multiplexing signal. In this approach, the total amount of available subcarriers is distributed among different transmit antennas in an interleaved way. Another proposed signal set is orthogonal chirp signal, which can be expressed as: By choosing different initial frequencies , these chirp waveforms can be made orthogonal. Notes Bistatic and multistatic radars