The widespread use of multi-channel systems and signal processing methods is the
development trend of modern radio engineering information systems. The case examples are
multi-channel filtering and spectral analysis devices, which are discussed in detail in this
monograph. Exceptional opportunities for improving methods and devices for information
processing emerge from the use of information and, in particular, structural redundancy that
appears as a result of the multi-channel processing of radio signals with a high-frequency
resolution. This has resulted prominently in recent years. Solving the problems of study, design,
and implementation of spectral analysis tools on acoustic waves are the most important tasks
of applying the latest achievements in the development of technologies, methods, algorithms,
structures, and devices for radio signals spectral processing in modern multifunctional multichannel radio information systems.
Keywords: Acoustic-optical spectrum analyzer, Bragg cell resolution, Fourier processors, Multi-channel filtering, Radio frequency signals, Radiation spectrum, Surface and bulk acoustic waves, Spectral analysis.
