Patent RU-2558654-C1 (RU)
Title: Device determining direction and distance to signal source
Inventor: BARYSHNIKOV ANATOLIJ KONSTANTINOVICH
IPC: G01V1/16
Filed: 2014-05-08
Granted: 2015-08-10
Abstract: FIELD: instrumentation. 
     SUBSTANCE: invention relates to instrumentation, in particular, to direction finders. Technical result is ensured in that device determining direction and distance to the signal source, containing first antenna and small-pressure barometer, as well as first, second, third and forth analogue-to-digital converters (ADC) connected to the personal computer (PC or microprocessor), additionally contains block of universal time system (GPS or GLONASS) and block of communication with abonents connected to PC, connected in series first amplifier, first filter, second amplifier, first threshold block and OR circuit, connected in series second antenna, third amplifier, second filter, forth amplifier and second threshold block, connected in series third antenna, fifth amplifier, third filer, sixth amplifier and third threshold block, connected in series seventh amplifier, forth filter, eighth amplifier, fifth filter, forth threshold block and first AND circuit, connected in series first digital-to-analogue converter (DAC) and first calibrator, connected in series second DAC and second calibrator, connected in series third DAC and third calibrator, connected in series forth DAC and forth calibrator, connected in series fifth DAC and first generator, connected in series sixth DAC and second generator, connected in series first timer, second AND circuit and counter, as well as clock generator connected to the second input of the second AND circuit, and second timer connected by output to second input of first AND circuit; at that first and third antennas are made magnetic, and are located mutually perpendicular; the first, second, third and forth threshold blocks are made with threshold control; first, second, third, forth and fifth filters are made with pass-band control; first, second, third, forth, fifth, sixth, seventh and eighth amplifiers re made with phase and sensitivity control; timer is made with control of output signal duration, first AND circuit is connected by third input with the first timer, and by output is connected to input of the counter stop, OR circuit is connected by the second and third inputs, respectively, to the second and third threshold blocks, and by the output is connected to the first timer; first antenna is connected to the first amplifier, the small-pressure barometer is connected by output to the seventh amplifier, and by input is acoustically connected with the forth calibrator, the first generator is connected to the control inputs of the first, second, third filters, the second generator is connected to the control inputs of the forth and fifth filters, inputs of first, second, third, forth ADCs are connected, respectively, to first, second, third, forth filters; output of first, second, third calibrators are connected, respectively, to first, second, third antennas, and input of first, second, third, forth, fifth, sixth DACs, control inputs of first, second, third, forth, fifth, sixth, seventh and eighth amplifiers, control inputs of first, second, third and forth threshold blocks, counter output, control input and output of the first timer, as well as control input and output of the second timer are connected to PC. 
     EFFECT: increased interference resistance of the device, and possibility to use the device at single position monitoring station or on vehicle. 
     1 dwg