Automatic Measurement Gate Placement for Adaptive Power Analysis
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Solution Overview
Problem
Existing power meter systems require manual setting of time gate positions, which are fixed and do not adapt to changing signals, making it difficult to accurately measure peak power in signals with varying pulse widths.
Innovation Solution
A method for automatically setting time gate positions based on signal transition data, using a processor to calculate gate positions relative to signal transitions, allowing for dynamic adjustment with each capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual setting of gate positions is used, then user control is maintained, but measurement accuracy deteriorates when signal characteristics change
Solution Approach 1:
The system automatically detects signal transitions and calculates optimal gate positions without user intervention. The processor identifies rising/falling edges and computes gate start/end times based on these detected transitions, enabling the system to self-adjust to changing signal characteristics while maintaining measurement accuracy
Solution Approach 2:
The system uses detected signal transition data as feedback to dynamically adjust gate positions. By continuously monitoring signal transitions and recalculating gate positions based on this feedback, the system adapts to varying pulse widths and signal characteristics across different captures
2Reliability
If fixed gate positions are used, then device complexity is reduced, but measurement reliability deteriorates for varying pulse widths
Solution Approach 1:
The system performs preliminary detection of signal transitions before setting gate positions. By first identifying the rising and falling edges of pulses and calculating the time domain of interest based on these transitions, the system prepares the optimal gate positions in advance for each capture, ensuring reliable measurements for varying pulse widths
Solution Approach 2:
The system transitions from static fixed gate positions to dynamic automatically calculated positions. The gate start and end times are dynamically adjusted for each capture based on detected signal transitions, allowing the system to adapt to varying pulse widths and maintain measurement reliability
3Adaptability or versatility
If automatic gate placement is implemented, then adaptability to changing signals is improved, but ease of operation deteriorates due to automated processing
Solution Approach 1:
The system performs automatic signal transition detection and gate position calculation without requiring user knowledge of signal characteristics. The processor independently identifies transitions, calculates the time domain of interest, and sets optimal gate positions, making the system self-sufficient and easy to operate despite the complexity of the underlying processing
Data Source
AI summary
A method and apparatus is provided for setting time positions of measurement gates on a signal under test. Signal transition data is calculated by a processor for multiple signal transitions. Measurement gate start and end positions are set relative to the multiple signal transitions based on the received signal transition data.