Water Vapor Observation Using Interference-Excluded Frequencies
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Solution Overview
Problem
Existing water vapor observation methods using radio waves face challenges in accurately measuring water vapor due to low signal intensity and interference, making it difficult to determine the amount of water vapor accurately.
Innovation Solution
A water vapor observation device comprising an antenna, RF amplifier, and a frequency selecting unit that identifies and excludes accuracy-degraded frequencies, allowing for the calculation of a water vapor index using the spectral intensities of selected observation frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If radio waves generated from water vapor are used for observation, then the observation method is simple, but the signal intensity is low and measurement accuracy deteriorates
Solution Approach 1:
The patent segments the frequency spectrum into multiple discrete frequency points for observation. By selecting specific frequency points (e.g., 22.235 GHz, 22.245 GHz, 22.255 GHz) within the water vapor absorption band, the system divides the continuous spectrum into measurable segments, enabling accurate water vapor observation while maintaining system simplicity
Solution Approach 2:
The patent changes the observation parameter from single-frequency to multi-frequency measurement. By observing spectral intensities at multiple frequency points and calculating the difference between them, the system enhances measurement accuracy while keeping the observation method relatively simple
2Adaptability or versatility
If all received frequencies are used for calculation, then the observation coverage is complete, but interference frequencies degrade the accuracy
Solution Approach 1:
The patent extracts and excludes interference frequencies from the calculation process. By identifying frequencies with abnormal spectral intensity differences that do not correspond to water vapor absorption characteristics, the system removes these interfering frequencies from the water vapor index calculation, thereby maintaining accuracy while preserving comprehensive observation coverage
Solution Approach 2:
The patent implements a feedback mechanism where the system continuously monitors spectral intensity differences across frequency points and dynamically identifies interference frequencies. This feedback loop enables the system to adaptively exclude degraded frequencies from calculations, maintaining both comprehensive coverage and high accuracy
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
The device accurately observes the amount of water vapor by detecting and excluding interference, enabling precise calculation of the water vapor index.
Implementation Method 1
The antenna receives radio waves radiated from an atmosphere including water vapor
Implementation Method 2
The RF amplifier amplifies the received radio waves and generates an observation signal
Data Source
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AI summary
This water vapor observation device (10) comprises an antenna (40), an RF amplifier (30), a frequency setting unit (21), and a water vapor index calculation unit (22). The antenna (40) receives radio waves radiated from an atmosphere including water vapor. The RF amplifier (30) amplifies the received radio waves and generates an observation signal. The frequency setting unit (21) uses the observation signal to set a plurality of observation frequencies excluding an accuracy degradation frequency. The water vapor index calculation unit (22) calculates a water vapor index using the spectral intensity of the plurality of observation frequencies. This configuration makes it possible to accurately observe a water vapor amount.