Adjustable Microwave Link Rain Attenuation Experiment
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Solution Overview
Problem
Current methods for studying microwave rain attenuation are limited by long duration, high costs, and inability to simulate actual communication link lengths, leading to inaccurate representation of real rain attenuation laws due to fixed experimental conditions and lack of data under varying meteorological conditions.
Innovation Solution
An adjustable link length artificial rainfall experimental method using a rotatable corner reflector and self-recording rain gauge to simulate rainfall intensities and dynamically adjust microwave link lengths, allowing for precise measurement and analysis of microwave rain attenuation across different frequencies and rainfall conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natural rainfall experiments are conducted using existing radio base stations, then actual measured data of microwave rain attenuation can be obtained, but the experiments require long time, large investment and are limited by natural precipitation conditions
Solution Approach 1:
The patent applies preliminary action by pre-generating rainfall through an artificial rainfall device before conducting microwave attenuation measurements. This allows the experiment to control and induce rainfall conditions rather than waiting for natural rainfall, significantly reducing experiment duration while maintaining data authenticity through controlled simulation of real rainfall scenarios
Solution Approach 2:
The patent implements dynamics by making the microwave link length adjustable during experiments. The microwave link length can be dynamically changed to match different actual communication scenarios, allowing the same experimental setup to study various link lengths and improve the applicability of obtained attenuation parameters across different communication conditions
2Productivity
If artificial rainfall device is used with fixed short link length, then different rainfall intensities can be designed and time and cost are saved, but the experimental link length differs significantly from actual communication link length, leading to unobvious microwave attenuation
Solution Approach 1:
The patent resolves this contradiction by introducing an adjustable microwave link length mechanism. The link length can be dynamically extended or reduced to match actual communication scenarios, ensuring that microwave attenuation measurements are both observable (solving the unobvious attenuation problem) and efficient (maintaining the advantages of controlled artificial rainfall experiments)
Solution Approach 2:
The patent applies parameter changes by allowing the microwave link length to be varied as an experimental parameter. This enables the experiment to optimize the link length parameter to achieve sufficient attenuation for accurate measurement while maintaining the efficiency benefits of controlled artificial rainfall conditions
3Device complexity
If fixed link length is used in artificial rainfall experiments, then experimental setup is simple, but the results cannot reflect real rain attenuation law under actual microwave link conditions
Solution Approach 1:
The patent implements dynamics by transforming the fixed link length into an adjustable parameter. This allows the experimental setup to adapt to different actual communication link lengths, significantly improving the versatility and applicability of the experimental results while maintaining reasonable setup complexity through a modular adjustable design
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method provides accurate and reliable experimental data for understanding real microwave rain attenuation laws, enabling more effective precipitation monitoring and inversion parameters for communication links.
Implementation Method 1
simulating artificial rainfall by using an artificial rainfall hall
Implementation Method 2
building a corner reflector and adjusting an arrangement point and an emission angle of the corner reflector to dynamically adjust the microwave link length
Implementation Method 3
selecting a microwave link with a specific microwave frequency band as an experimental link
Data Source
AI summary
The invention discloses a microwave rain attenuation law based artificial rainfall experimental method with an adjustable link length, including the following steps of: 1) designing and calculating rainfall intensities in different return periods to form an experimental rainfall process, and simulating artificial rainfall by using an artificial rainfall hall; 2) building a corner reflector to dynamically adjust the microwave link length; 3) installing an experimental microwave device, and selecting a microwave link with a specific microwave frequency band as an experimental link; 4) using a self-recording rain gauge to obtain measured data on the experimental link under different rainfall intensities; and 5) according to the measured data, obtaining a whole process of the experimental rainfall intensity change, and analyzing and calculating the microwave rain attenuation law.