The elaboration measurement accuracy problems of the frequency characteristics of the sources of high stability oscillations in the millimeter and submillimeter range and of the means of their traceability

The intensive mastering of submillimetric range stimulates the development both measurement equipment of this range and metrological assurance equipment for high-precision measurements of frequencies and frequency characteristics. The method of direct multiplication of frequency from standard sources has a number of essential limitations which makes impossible its use for standard frequencies transfer into submillimetric range and higher as when multiplication ratios are 10⁴ the phase noise increases intolerably. The complicated problem of high-stable generators development for realization of such sources in the metrological systems take a particular place in the problems of submillimetric range systems realization. The creation of sources for metrological systems and also for the united time, frequency and length standard is realized by the use of various-type generators which are stabilized by means of phase lock. We suggested the method of phase lock multiringed optimal systems computation, which permits to maximize the stabilized generator output signal S/N ratio