Environment electromagnetic radiation monitoring system

Abstract

The invention discloses an environment electromagnetic radiation monitoring system. The system comprises a local oscillator module, a signal receiving module, a down-conversion mixer, a first low-pass filter, a medium frequency signal detection module and a control module, wherein the local oscillator module is used for generating a local oscillator frequency sweeping signal; the signal receiving module is used for receiving a radio frequency signal of electromagnetic radiation in a monitored environment; the down-conversion mixer is used for mixing the local oscillator frequency sweeping signal generated by the local oscillator module and the radio frequency signal received by the signal receiving module to realize down conversion and then output a medium frequency signal; the first low-pass filter is used for filtering the medium frequency signal output by the down-conversion mixer; the medium frequency signal detection module is used for receiving the filtered medium frequency signal and converting the power of the medium frequency signal into an analog level value; the control module is used for acquiring the analog level value and converting the analog level value into a digital signal level value. The monitoring system has the characteristics of programmability, multi-functionality, easiness in operation and the like, a space environment radio frequency radiation signal can be effectively measured, signal power can be effectively and quantitatively analyzed, and the system can be applied to environment electromagnetic radiation measurement and monitoring.

Description

technical field [0001] The invention relates to the field of environmental monitoring, in particular to an environmental electromagnetic radiation monitoring system. Background technique [0002] At present, the instruments that better realize environmental electromagnetic monitoring are mainly produced by companies such as R&S, Tektronix, Anritsu, and Agilent. These environmental electromagnetic monitoring instruments are mainly aimed at professional users and high-end customers. Huge, it is difficult to popularize and apply in the family environment electromagnetic monitoring. [0003] Specifically, the application of these environmental electromagnetic monitoring instruments in household environmental electromagnetic monitoring has the following disadvantages: [0004] 1. Its radio frequency performance is often higher than the electromagnetic monitoring requirements of the home environment, so its cost is high, and its processor often has high performance, resulting in ...

AI Technical Summary

Problems solved by technology

[0004] 1. Its radio frequency performance is often higher than the electromagnetic monitoring requirements of the home environment, so its cost is high, and its processor often has high performance, resulting in unnecessary waste;

[0005] 2. The signal processing process is complex, including a large number of AD sampling and digital signal processing processes, which need to consume a lot of resources to complete the work;

[0006] 3. It is bulky and not suitable for family popularization;

[0007] 4. The price is expensive, usually ranging from tens of thousands to hundreds of thousands of equipment;

[0008] 5. High power consumption, in order to achieve its radio frequency performance and digital signal processing performance, the process needs to consume a lot of power

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