GEAR DETERMINING RANGE TO RADIATION SOURCE Russian patent published in 1999 - IPC

FIELD: radio engineering. SUBSTANCE: gear can be used to determine range to source with constant power or with power changing by harmonic law if initial phase of radiation is unknown. Gear incorporates receiver, squarer, storage, difference unit, multiplier, divider, another storage, device computing range, synchronization unit, speed transducer. Synchronization unit is manufactured in the form of timer linked with feedforward and feedback to integrator. Operation of gear under control of timer starts with emergence of signal across input of receiver. Controlling signals for receiver are formed by storages and for difference unit, multiplier, divider, speed transducer are formed depending on required precision of measurement of range by signal from output of integrator coupled to speed transducer. Range is computed by signals proportional to density of radiation power across output of squarer converted by difference unit, multiplier and divider as well as by data coming from integrator, speed transducer and from conversion of harmonic power change with unknown radiation phase on basis of solving of system of nonlinear equations of second order. EFFECT: increased precision and expanded employment capabilities if sources with harmonic change of power with known initial radiation phase are used. 2 dwg