DIGITAL SIGNAL POWER AND INTERFERENCE POWER METER IN RADIO RECEIVER CHANNEL BANDWIDTH IN REAL TIME SCALE

摘要

FIELD: radio engineering, communication.;SUBSTANCE: device contains a series-connected mixer, the signal input of which is the device input, a bandpass filter, an analog-to-digital converter, a signal power meter, the first averager-accumulator, the first memory register and a recording device, the output of which is the device output, as well as a local oscillator, the output of which is connected to the reference input of the mixer directly and the analog-to-digital converter through the frequency divider, a power meter of the additive signal and interference mixture, the input of which is connected with the output of the analog-to-digital converter, a storage register of the averaging factor L, the output of which is connected to the second inputs of the power meter of the additive signal and interference mixture and the signal power meter, a subtraction unit, the second averager-accumulator and the second memory register and an arithmetic-logic unit for defining quotient, the second input of which is connected to the output of the first averager-accumulator, and the output - to the second input of the recording device. A calculator of the noise cluster central point, the output of which is connected to the second input of the arithmetic-logic unit and the third input of the recording device, is introduced. Herewith the output of the additive of the signal and interference mixer through the series-connected subtraction unit, the second averager-accumulator and the second memory register are connected to the input of the center noise cluster point calculator, and the output of the signal power meter - to the second input of the subtraction unit.;EFFECT: decreasing the RMS error of the noise dispersion estimation in the receiving tract in terms of penetrating a part of the signal in the noise dispersion estimation channel while maintaining other characteristics and ease of implementation.;1 dwg