FIELD: engineering of equipment for protecting various objects from unsanctioned access by unauthorized persons, in particular, engineering of electronic locks.
SUBSTANCE: electronic lock contains enabling elements, made, for example, in form of mechanical lock with electric contact, executing block, radio transmitter, radio receiver, encoding means, oscillation contours, frequency transformation means, generator of modulating code, phase manipulator, multipliers, narrowband filter, low frequencies filter, memory block, correlator, threshold block, phase shifter for +30°, phase shifter for -30°, subtraction blocks and phase shifter for +90°.
EFFECT: increased resistance of electronic lock to interference due to suppression of narrowband interference.
2 dwg
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