FIELD: measuring equipment.
SUBSTANCE: device consists of two ADCs operating at Fs1 and Fs2 respectively, which inputs are connected together, and a decision device. Also, the device comprises first digital filters of higher (DFHF) and lower frequencies (DFLF) operating at Fs1, second DFHF and DFLF operating at clock frequency Fs2, four devices for calculating a module, four accumulating adders on N terms, four dividers by N, two dividers, wherein outputs of first ADC are connected to inputs of first DFLF and DFHF, outputs of second ADC are connected to inputs of second DFLF and DFHF, outputs of first DFHF and DFLF are connected to inputs of first and second devices of module calculation respectively, outputs of second DFHF and DFLF are connected to inputs of third and fourth modules of module calculation respectively, outputs of first, second, third, fourth module calculation devices are connected to inputs of first, second, third, fourth accumulator adders, respectively, outputs of the first, second, third, fourth accumulation adders are connected to inputs of the first, second, third, fourth divider by N, outputs of the first and second dividers by N are connected to inputs of the first divider, outputs of the second and third dividers by N are connected to inputs of the second divider, outputs of the first and second dividers are connected to inputs of the decision device.
EFFECT: invention can be used to measure frequency of continuous radio signals in a wide frequency range.
1 cl, 2 dwg
