Aerospace Instrument-Making Annotation << Back CALCULATION OF PARAMETERS FOR NATURAL SPECTRUM OF THE DISCRETE PROCESS LIMITED IN TIME, CONTAINING WAVES WITH KNOWN AND UNKNOWN FREQUENCIES E.V. Dmitriev It is said about the method of analytical calculation of parameters for natural spectrum of the discrete process limited in time, which contains two groups of sinusoidal waves: unknown frequencies in the first group, and known frequencies in the second. The method is based on presenting the process as a sum of sinusoidal members, using their characteristics and adapting least-squares method to determine unknown parameters. E-mail: kvsj3903@yandex.ru