Pulsed Signal Power Detection via Segmented Window Accumulation
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Solution Overview
Problem
Existing signal analyzers lack the capability to accurately and efficiently detect power in pulsed signals, which is crucial for setting up measurement applications, as they fail to separate on-power from off-power effectively and require exhaustive offline analysis for trigger level setup.
Innovation Solution
A receiver with a power detecting function for pulsed signals, comprising an accumulator with a window based on pulse length, a maximum detector, and a minimum power detector, along with a pre-processor, which accumulates and processes signal power samples to determine maximum and minimum power levels, allowing for real-time detection of average power within a time window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional power detection methods are used for pulsed signals, then the setup process is simplified, but the power detection accuracy is poor because they cannot separate on-power from off-power effectively
Solution Approach 1:
The detection process is segmented into distinct on-state and off-state measurements using separate detection intervals. The method divides the pulse signal analysis into two phases: detecting power during the on-state (when the signal is active) and during the off-state (when the signal is inactive), allowing accurate separation and measurement of power levels in each state independently
Solution Approach 2:
The method performs preliminary detection of trigger levels and pulse characteristics before conducting the actual power measurement. By first identifying the on-state and off-state intervals through trigger level detection and analyzing pulse train characteristics, the system prepares the detection framework in advance, ensuring accurate power separation without requiring complex real-time processing
2Measurement precision
If exhaustive offline analysis is performed for trigger level setup, then trigger level accuracy is improved, but the setup efficiency is reduced
Solution Approach 1:
The detection system performs self-calibration by automatically determining trigger levels from the pulse train signal itself. The method uses the signal's own characteristics (pulse width, repetition rate, and power levels) to establish the trigger levels needed for accurate on-state and off-state detection, eliminating the need for external calibration equipment or exhaustive offline analysis while maintaining high accuracy
Solution Approach 2:
The system uses feedback from the detected pulse characteristics to adjust and optimize the trigger level settings. By continuously monitoring the pulse train and using the detected on-state and off-state power levels to refine trigger level selection, the method achieves accurate setup rapidly without requiring time-consuming offline analysis
Data Source
AI summary
A receiver with a power detecting function for a pulsed signal is provided. Said receiver comprises an accumulator for accumulating samples of the respective power of the corresponding signal over time. In this context, the respective accumulation length is a window being based on the pulse length of the corresponding signal. Furthermore, the receiver may additionally comprise an output for outputting several windows and a maximum detector. In this context, the maximum detector is configured to determine a maximum power value of the several windows.