Yu.G. Bulychev - Dr. Sc. (Eng.), Professor, Head of Department, OJC «VNII «Gradient» (Rostov-on-Don). E-mail: ProfBulychev@yandex.ru S.S. Ivakina - Part-programming engineer, OJC «VNII «Gradient» (Rostov-on-Don) I.G. Nasenkov - Deputy General Director, OJC «Concern Radio-Electronic Technologies». E-mail: nasenkov@retechn.ru

It is known that traditional passive location and navigation methods are popular and are used in various civil and military fields. Interest to passive systems, based on these methods, is caused by attainable self-sufficiency, low energy consumption and comparatively rea-sonable price. However field experience of such systems shows that possibilities of mentioned methods turn out to be clearly insufficient for qualitative ranging problem solution in certain measurement conditions (for example, under the conditions of applied system structure «degradation»). It is necessary to develop other alternative passive location and navigation methods based on new physics fundamentals and approaches. Methods, focused on joint use of angular and energy measurements as applied to single-position and multi-position sys-tems, can be assigned to their number. New passive-energy method of ranging, that is applicable to any passive systems of location and navigation of target with partly known motion parameters, is developed in paper. Method contains stationary and non-stationary cases depending on proportionality constant μ behavior in passive location equation P=μR−2. Except of method analytical relation conclusion for both cases, it-s operation zone is formed, accountability of measurement redundancy in range computation (as applied to stationary case) is shown, finding process of proportionality constant μ is proposed for non-stationary case in the paper. Method effectiveness is supported by numerical experiment, wherein range is measured under condition of μ non-stationarity. Passive-energy method under development can be used by itself as well as in combination with known passive location and navigation methods. First case can be actual when energy channel is the only source of reliable information in measurement system or when single-position energy variant of ranger construction (or when structure «degradation» of two-position or multi-position measurement system). Second case allows to consider passive-energy method as alternative when complex operation algorithm construction of smart mea-surement system that is capable to function securely in just various and even adverse conditions.

 

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