Wireless microwave dew intensity monitoring method based on wet antenna cause discrimination

Abstract

The invention discloses a wireless microwave dew intensity monitoring method based on wet antenna cause discrimination. The method comprises the following steps: monitoring wireless microwave signal attenuation intensity; deducing dry period and wet period by using a Markov transformation model; using a generalized likelihood ratio test method to detect whether there is a wet antenna phenomenon caused by dew in the dry period; if the wet antenna phenomenon is detected, applying a trained ICA algorithm to separate out attenuation signals caused by a wet antenna from microwave signal attenuationintensity data received by the wireless microwave receiver; and establishing a model relationship between the attenuation value caused by the wet antenna and the dew intensity by using a Fresnel reflection formula to realize monitoring of the dew intensity. According to the method, a direct monitoring method and an indirect model method are combined, high-resolution monitoring of the dew intensity is achieved, a traditional dew monitoring method is innovated, meanwhile, an existing high-temporal-spatial-resolution microwave communication network is effectively utilized, manpower and materialresources are saved, and the monitoring precision of the dew intensity is improved.

Description

technical field [0001] The invention relates to the application field of a new generation of communication technology, in particular to a method for wireless microwave monitoring of dew intensity based on the identification of the cause of wet antennas. Background technique [0002] Dew is an important environmental factor in urban ecosystems. It has many ecological effects such as providing condensation water source and humidity source for plant growth regulation, improving soil moisture balance, and reducing environmental pollution. Therefore, accurate monitoring and measurement of dew condensation is of great significance to people's production and life. [0003] Conventional dew monitoring methods mainly include: collector monitoring method (direct) and model calculation method (indirect). The collector monitoring method usually uses various dew gauges and leaf sensors, which is easy to operate, but requires a high frequency of collector collection, which consumes manpo...

AI Technical Summary

Problems solved by technology

The collector monitoring method usually uses a variety of dew meters and leaf sensors, which is easy to operate, but requires a high frequency of collector collection, which consumes manpower and material resources; and once the surface of the device receiving moisture changes slightly, it will cause large errors

The model calculation method saves manpower, but it needs to introduce meteorological elements to establish a model relationship between dew amount and meteorological factors, and the effect is usually not satisfactory

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