DEVICE TO DETERMINE DIRECTION AT SIGNAL SOURCE Russian patent published in 2013 - IPC G01S1/08 

FIELD: measurement equipment.

SUBSTANCE: device for determination of a direction to a signal source comprises the first, second and third reject filters and three low pass filters, the first, second and third amplifiers, the first, second and third analogue-to-digital converters (ADC), the first, second and third signal receivers, a personal computer (PC or a microprocessor), and also the first and second calibrators. It additionally comprises a clock oscillator, a delay line, a summator and a frequency synthesiser, the first "AND" circuit and the first register, the second "AND" circuit and the second register, the first mixer and the first narrow-band filter, the second mixer and the second narrow-band filter, the third mixer and the third narrow-band filter, an antenna unit of a single time system ("GPS", "Glonass") and a synchroniser, a unit of communication with subscribers, the third calibrator, and also the third "AND" circuit, the first synchronous detector, the second synchronous detector, a limiter, a detector and a counter, besides, the third amplifier is made with a phase changer.

EFFECT: possibility to select sources of signals by width of a radiated spectrum or to select frequency zones that are free of signals.

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