Grouped Peak Cancellation Pulse for Low-Distortion Input Signals
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Solution Overview
Problem
Existing peak cancellation methods in signal processing are inefficient when multiple peaks occur within a short time, as they require multiple configurations to process each peak individually, leading to excessive modification of the input signal.
Innovation Solution
A method and apparatus that form a peak group of multiple peaks exceeding a preset threshold, generate a single cancellation pulse for the group, and subtract it from the input signal to effectively reduce peaks without excessive noise generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple peak configurations are used to process each peak individually, then each peak can be canceled accurately, but the device complexity increases and processing efficiency decreases
Solution Approach 1:
The patent merges multiple peak processing operations into a single unified process. The noise filter is configured once to handle a group of peaks simultaneously, rather than requiring separate configurations for each peak. This combining approach reduces device complexity while maintaining effective peak cancellation across multiple peaks occurring within a short time period.
2Measurement precision
If multiple peak configurations are used to process each peak individually, then each peak can be canceled accurately, but the processing time increases
Solution Approach 1:
The patent implements preliminary action by configuring the noise filter in advance to handle multiple peaks within a group. Instead of sequentially processing each peak as it occurs, the system pre-configures the filter parameters to address a group of peaks simultaneously, significantly reducing the processing time required while maintaining cancellation accuracy.
3Productivity
If a single cancellation pulse is generated for multiple peaks, then processing efficiency improves, but the precision of individual peak cancellation may decrease
Solution Approach 1:
The patent employs parameter changes by dynamically adjusting the noise filter parameters based on the characteristics of the peak group. The system modifies filter parameters such as bandwidth, center frequency, and attenuation levels to optimize cancellation effectiveness for multiple peaks occurring together, thereby maintaining precision while achieving high processing efficiency through unified pulse generation.
Data Source
AI summary
A method for removing a peak of an input signal includes forming a peak group including multiple peaks having an amplitude greater than a preset signal threshold value in the input signal, generating a cancellation pulse corresponding to the peak group, and generating a output signal by subtracting the cancellation pulse from the input signal.