Receiving Signal Phase Detection Using Consecutive Differential Values
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Solution Overview
Problem
Existing phase detection methods face challenges in accurately determining the phase of a receiving signal at the outlet of a transferring medium due to factors like sampling accuracy, frequency set accuracy, signal coupling, and interference, which affect the precision of material characterization and medical diagnostics.
Innovation Solution
A phase detection method and processor that utilize a linear relation between phase real and imaginary parts and differential values of the receiving signal, solved using a two-dimensional linear system of equations weighted by Fourier Coefficients based on known transmitting and sampling frequencies, allowing for precise phase determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional phase detection methods are used, then the phase can be determined, but the measurement precision is affected by sampling accuracy, frequency set accuracy, signal coupling, and interference
Solution Approach 1:
The patent applies feedback by using the determined phase information to adjust and optimize the detection process. The phase detector continuously monitors the receiving signal and uses the phase information to compensate for variations in system parameters, thereby improving measurement precision and reducing the impact of interference and harmful factors.
Solution Approach 2:
The patent changes the parameter representation by determining both the phase and bias of the receiving signal simultaneously through a two-dimensional linear system. This parameter transformation allows for more accurate phase determination by considering additional signal characteristics, thereby improving measurement precision while mitigating the effects of interference and system variations.
2Measurement precision
If conventional phase detection methods are used, then the phase can be determined, but the device complexity increases due to multiple system parameters requiring precise control
Solution Approach 1:
The patent extracts the essential phase and bias information from the receiving signal by using a two-dimensional linear system that focuses only on the necessary signal characteristics. This extraction approach simplifies the detection process by eliminating the need for precise control of multiple system parameters, thereby reducing device complexity while maintaining measurement precision.
Solution Approach 2:
The patent implements self-service by designing a phase detector that automatically determines both phase and bias simultaneously without requiring external calibration or adjustment of multiple system parameters. The system uses the receiving signal itself to provide the necessary information, reducing the complexity of device control while maintaining accurate phase determination.
3Measurement precision
If conventional phase detection methods are used, then the phase can be determined, but the ease of operation is reduced due to requirements for precise sampling and frequency setting
Solution Approach 1:
The patent implements self-service by creating a phase detector that automatically determines both phase and bias from the receiving signal without requiring manual adjustment of sampling accuracy or frequency settings. The system uses the signal itself to provide calibration information, making the device easier to operate while maintaining measurement precision.
Solution Approach 2:
The patent applies universality by designing a phase detector that simultaneously performs multiple functions: determining phase, determining bias, and compensating for system variations all in one operation. This multi-functionality simplifies the ease of operation by eliminating the need for separate calibration and measurement steps, while maintaining accurate phase determination.
Data Source
AI summary
The invention relates to a phase detection method. A plurality of consecutive values of a receiving signal with a known sampling frequency fs are received as a reaction to a transmitting signal having a known transmitting frequency fw. Two differential values are determined, each coming from two consecutive values out of three consecutive values of the receiving signal. A phase real part and a phase imaginary part of the receiving signal are determined based on a linear relation between the phase real part, the phase imaginary part and the two differential values.