Device discovery signals on a priori uncertainty of their parameters

摘要

The invention relates to radio engineering and may be used in the development of radiation sources in the range of monitoring systems dekametrovyh waves (HF) in the absence of a priori information about the signals.; Target Utility Model - increased sensitivity of signal detection apparatus, and a significant decrease in the fluctuation of signal levels.; The detection device includes an antenna input, the input apparatus comprising serially connected first wideband filter, the first amplifier of high frequency and the second wideband filter, a detector, first low-pass filter, which is an integrator and a threshold device, wherein the input device input connected to the antenna port, and output - with an input of the detector, first low pass filter input coupled to an output of the detector, and an output - to the input of the threshold device, between the input device and the detector complementary Tel'nykh administered two inverter, four high frequency amplifier, wherein one of them is controlled, two bandpass filter the intermediate frequency, two narrow-band filter, an AGC amplifier, a second low-pass filter and a local oscillator, the first input of the first inverter connected to the output of the input device, the second input - to the output of the fifth managed high frequency amplifier, and the output - to the input of the first intermediate frequency band-pass filter, a high frequency amplifier second input connected to the output f the first- bandpass filter the intermediate frequency, and the output - to the input of the second bandpass filter the intermediate frequency, the first input of the second inverter connected to the output of the second bandpass filter the intermediate frequency, the second input - with the output of the third high frequency amplifier, and the output - to the input of the first narrow-band filter, high frequency input of the third amplifier coupled to the output of the input device, the fourth high-frequency amplifier input coupled to an output of the first notch filter, and an output - to an input of the second kt kopolosnogo filter whose output is connected to the detector input, the input of the amplifier AGC is connected to the output of the first low-frequency amplifier, and the output - to the input of the second filter low frequency and high frequency fifth managed amplifier input coupled to an output of a local oscillator controlled input - with the output of the second low pass filter frequency, and an output - to a second input of the first inverter.