SCANNING RADIOMETER Russian patent published in 2013 - IPC G01R29/08 

FIELD: instrument making.

SUBSTANCE: radiometer comprises a movable antenna, a reference signal generator, a mixer, a heterodyne, a low-frequency amplifier with direct and inverse outputs, N synchronous detectors and a quadratic detector, the input of which is connected to the output of the mixer with an intermediate frequency amplifier connected by one input to the output of the heterodyne, two sources of reference voltage, a subtractor, a controlled divider, N integrators, N-1 summators and N-1 multipliers, synchronous detectors. At the same time the output of the quadratic detector is connected with the input of the low-frequency amplifier, N-1 multipliers are connected by some inputs via appropriate integrators to outputs of appropriate synchronous detectors, by other inputs - to the output of the controlled divider, and by outputs - to some inputs of appropriate summators, the controlled divider is connected by a control input to an output of the N synchronous detector via the N integrator and an information input to the output of the subtractor. Besides, additionally there is a sensor of carrier speed, a sensor of carrier height, the second controlled divider, an amplifier, the input of which is connected with the output of the second controlled divider, and the output with the control input of integrators, N-1 analogue keys, outputs of which are connected with outputs of N-1 summators, and control inputs are connected to outputs of a decoder, an analogue to digital converter, a secondary processing unit, the input of which is connected to the output of the analogue to digital converter, an interruption input of which is connected with an output of a driving oscillator, and its output is the output of the device.

EFFECT: improved detail of view and higher accuracy of measurement of radio brightness temperature measurement.

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