NULL RADIOMETER Russian patent published in 2004 - IPC

FIELD: passive radiolocation technologies.

SUBSTANCE: device has antenna, first and second coordinated loads, first and second band-pass filters, first and second modulators, receiver, upper frequencies filter, synchronous filter, comparator, controlling block, first, second and third outputs of which are connected to control inputs if first, second modulators and synchronous filter, respectively, while input of control block is connected to comparator output, second input of which is connected to common bus of radiometer, first coordinated load through first band-pass filter is connected to first input of first modulator, output of which is connected to first input of second modulator, while radiometer output is fourth output of control block, while first and second coordinated loads, first and second modulator are mounted on thermostatic plate, while into it third band-pass filter, prior amplifier of low frequency are inserted, output of second modulator is connected through connected in series receiver, prior low frequency amplifier, synchronous filter, low frequency amplifier, high frequency filter is connected to first input of comparator, second coordinated load is connected through second band-pass filter to second input of first modulator, and antenna is connected to second input of second modulator through third band-pass filter.

EFFECT: broader functional capabilities of radiometer for selecting measurements range.

5 dwg