Radar Phase Jump Correction via Linear Functional Relationship
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Solution Overview
Problem
Radar measuring devices experience phase jumps due to systematic errors and dispersive effects, leading to inaccurate distance measurements, especially in surge pipes with varying diameters, which conventional methods struggle to address effectively without extensive calibration and memory requirements.
Innovation Solution
A method that determines the first and second phase differences between target and actual phase positions, establishing a linear functional relationship to correct for phase jumps by approximating the phase difference progression, allowing for precise measurement value determination even with systematic errors, using electronics within the measuring device to adapt and correct for phase discrepancies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If phase information is used to increase measurement precision, then measurement precision is improved, but phase jumps occur causing errors in the evaluation of the measurement signal
Solution Approach 1:
The patent implements feedback by continuously monitoring phase differences between successive measurement values and comparing them against threshold criteria. When phase jumps are detected through this feedback mechanism, the system automatically initiates correction procedures, ensuring reliable measurement evaluation while maintaining high precision through phase information utilization.
Solution Approach 2:
The patent applies preliminary action by establishing target phase progressions and correction criteria before measurement errors occur. By pre-defining acceptable phase difference ranges and correction procedures, the system is prepared to detect and correct phase jumps immediately when they occur, preventing measurement errors rather than reacting to them after the fact.
2Reliability
If conventional methods are used to address phase jumps, then phase jump correction is attempted, but extensive calibration and memory requirements increase device complexity
Solution Approach 1:
The patent implements self-service by enabling the measuring device to automatically detect, evaluate, and correct phase jumps using its own measurement data and pre-stored correction criteria. The system performs self-diagnosis through phase difference analysis and self-correction by selecting appropriate target phase progressions, eliminating the need for external calibration equipment or complex additional hardware components.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the target phase progression parameters based on detected phase jumps. When a phase jump is identified, the system changes the target phase progression parameters to match the new phase conditions, allowing continuous accurate measurement without requiring physical recalibration or complex reconfiguration of the device.
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 stable and precise measured values by accurately identifying phase differences and correcting for phase jumps, enhancing measurement precision and reliability in industrial applications, such as fill-level measurement in containers, by using a linear functional relationship to adapt to changing conditions.
Implementation Method 1
receives as a reception signal the echo waves that are reflected from the surface
Implementation Method 2
the measuring precision can be increased by taking into account an actual phase position at the echo peak of a useful echo function
Data Source
AI summary
A method for processing a measurement signal that is captured by a measuring device, wherein, in order to capture the measurement signal, the measuring device emits a transmission signal and receives a component of the transmission signal that is reflected by an object as a reception signal, wherein a first phase difference between a first target phase position and a first actual phase position contained in the measurement signal is determined, and wherein a second phase difference between a second target phase position and a second actual phase position contained in the measurement signal is determined, and a phase difference progression in the form of an, in particular, linear, functional relationship is determined on the basis of the first and the second phase differences, and a measured value is determined by means of the functional relationship.