A system may include emitters configured to emit radiation at a first wavelength of electromagnetic (EM) radiation and a second wavelength of EM radiation towards a biological tissue, and receivers configured to receive responses to the first and second wavelengths of EM radiation after the wavelengths of EM radiation interact with the biological tissue. The system may also include a signal mixer unit configured to perform operations that include replicate and mix first signals representative of the responses to the first wavelength of EM radiation received by the receivers and second signals representative of the responses to the second wavelength of EM radiation received by the receivers to generate a set of spectro-spatial responses, replicate and mix the spectro-spatial responses to generate markers, and replicate and mix the markers and user-selected markers to output a sequence associated with characterization of the biological tissue.
