Peak Power Detection Using Sliding Window and Preliminary Action
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Solution Overview
Problem
Current methods for determining peak power in signal processing are inefficient, requiring multiple comparisons that hinder real-time detection of peak-to-average power ratio due to low detection efficiency.
Innovation Solution
A method and apparatus that compare sampling power at a current sampling time with an estimated peak power, using delayed sampling power and attenuation coefficients to determine actual peak power, allowing for real-time detection with reduced comparisons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple comparison calculations are performed to determine peak power with high accuracy, then measurement precision is improved, but productivity deteriorates due to lower detection efficiency
Solution Approach 1:
The patent applies preliminary action by pre-establishing a sliding window structure and pre-calculating power values within the window. The method pre-defines the comparison range and prepares the computational framework in advance, so that when peak power detection is needed, the system only needs to perform comparisons within the pre-established window rather than analyzing the entire signal from scratch. This preliminary preparation significantly reduces the computational burden while maintaining detection accuracy.
Solution Approach 2:
The patent segments the signal analysis into a sliding window structure, dividing the continuous signal into discrete segments of fixed length. Within each window, power values are calculated and compared separately. This segmentation transforms the problem from analyzing the entire signal at once to analyzing manageable segments, reducing the number of comparisons needed while maintaining peak detection accuracy through the sliding window mechanism that ensures overlapping segments capture all potential peaks.
2Measurement precision
If multiple comparison calculations are performed for each sampling to ensure accurate peak power determination, then measurement precision is improved, but loss of time increases due to reduced real-time detection capability
Solution Approach 1:
The sliding window structure performs preliminary action by pre-establishing the analysis framework and pre-calculating power values within the window before peak detection is actually needed. This preparation work is done continuously in the background, so when a peak detection query occurs, the system already has pre-computed values ready for immediate comparison, eliminating time-consuming calculations at the moment of detection.
Solution Approach 2:
The patent implements dynamics through the sliding window mechanism that continuously moves through the signal. The window adapts its position dynamically, always maintaining the optimal comparison range. This dynamic approach allows the system to respond to changing signal conditions in real-time while maintaining consistent detection performance, as the window automatically adjusts to capture relevant signal segments without requiring recalibration or reconfiguration.
Data Source
AI summary
The invention relates to the field of signal processing, and particularly to method and apparatus for determining a peak power, a peak-to-average power ratio. The method for determining the peak power comprises: obtaining a sampling power at a current sampling time; comparing the sampling power at the current sampling time with an estimated peak power at the current sampling time; and when the sampling power at the current sampling time is greater than the estimated peak power at the current sampling time, determining the sampling power at the current sampling time as an actual peak power at the current sampling time. With the present invention, detection efficiency of the peak power is improved, and the peak power can be determined in real time at each sampling time.


