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Parameter Extraction Circuit and Parameter Extraction Method of Broadcasting Wave Monitoring Receiver

A parameter extraction and receiver technology, applied in the field of communication, can solve the problems of monitoring and monitoring data that cannot be recorded in real time and monitoring accuracy is not high, and achieve the effects of automatic gain control, convenient installation and debugging, and reduced complexity

Active Publication Date: 2020-07-31
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The monitoring accuracy is not high, and the monitoring data cannot be recorded in real time

Method used

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  • Parameter Extraction Circuit and Parameter Extraction Method of Broadcasting Wave Monitoring Receiver
  • Parameter Extraction Circuit and Parameter Extraction Method of Broadcasting Wave Monitoring Receiver
  • Parameter Extraction Circuit and Parameter Extraction Method of Broadcasting Wave Monitoring Receiver

Examples

Experimental program
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Embodiment 1

[0029] Embodiment 1: as Figure 1-7 As shown, a parameter extraction circuit of a radio monitoring receiver includes a power supply circuit 1, a detection circuit 2, a low-frequency amplification circuit 3, and a signal output circuit 4,

[0030]The power supply circuit 1 is connected to the corresponding power supply terminals of the detection circuit 2, the low frequency amplifier circuit 3, and the signal output circuit 4, the output terminal of the detection circuit 2 is connected to the input terminal of the low frequency amplifier circuit 3, and the output terminal of the low frequency amplifier circuit 3 is connected to the signal output The input terminal of the circuit 4, the power circuit 1 includes a DC voltage source U1, the DC voltage source U1 can output DC voltages of +12V and -12V, and the detection circuit 2 is used to rectify the received target intermediate frequency signal that needs to extract parameters , signal amplification and filtering, the low-freque...

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PUM

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Abstract

The invention provides a parameter extraction circuit for a broadcast supervision receiver and a parameter extraction method thereof, which belong to the field of communication and circuits. The parameter extraction circuit mainly comprises a power circuit, a detection circuit, a low-frequency amplifier circuit and a signal output circuit, wherein the power circuit provides power for the detection circuit, an operational amplifier circuit and the signal output circuit; the detection circuit receives target intermediate-frequency signals in need of parameter extraction and sequentially carries out rectification, signal amplification and filtering; signals after detection are inputted to the low-frequency amplifier circuit for low-frequency amplification; signals after low-frequency amplification are inputted to the signal output circuit; the signal output circuit processes the received signals and outputs audio signals, and the peak voltage, the valley voltage, and the mean voltage of detection signals after low-frequency amplification are outputted at the same time. The broadcast supervision receiver parameter extraction method comprises steps of signal input, rectification, signal amplification, filtering, low-frequency amplification, signal voltage extraction and audio output.

Description

technical field [0001] The invention relates to a parameter extraction circuit of a broadcast wave monitoring receiver and a parameter extraction method thereof, belonging to the communication field. Background technique [0002] With the increase of broadcasting programs and the rapid development of broadcasting technology, people have higher and higher requirements for the content of broadcasting programs, and the coverage of broadcasting stations is also increasing. There have been many major incidents of misbroadcasting and malicious propaganda of reactionary speeches in China. In addition, due to the lack of effective supervision methods for program content and sources, there are countless incidents of illegal advertisement insertion in remote areas. Surveillance has always been an issue that our country attaches great importance to. [0003] At present, there are more than 2,000 broadcasting organizations in China. In response to the management of so many broadcastin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/29H04B1/16
CPCH04B1/16H04B17/29
Inventor 邵玉斌胡耀文廖密樊详强
Owner KUNMING UNIV OF SCI & TECH
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