Real-Time Prototype Pulse Generation for Low Amplitude Signal Detection
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Solution Overview
Problem
Receiver systems face challenges in detecting and processing low amplitude signals due to noise interference, which is exacerbated by the variability of repetitive pulse signals arriving at different times, making it difficult to establish an accurate prototype pulse signal for improving signal-to-noise ratios.
Innovation Solution
A method that involves detecting repetitive pulse signals, estimating time intervals based on arrival times, extracting pulse signal segments, aligning them by calculating time delays, and averaging to create a prototype pulse signal, which can then be used to enhance signal processing and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If matched filters are used to maximize signal-to-noise ratio, then low amplitude signal detection is improved, but noise interference still significantly impacts detection capability
Solution Approach 1:
The patent segments repetitive pulse signals into multiple individual pulse segments, processes each segment separately through alignment and time delay calculation, then combines them through averaging. This segmentation approach allows the system to extract useful signal characteristics from each segment while reducing the impact of random noise through the averaging process.
Solution Approach 2:
The patent merges multiple extracted pulse signal segments by aligning them in time and averaging their values. This combining process consolidates the signal energy from multiple repetitions while the averaging operation reduces random noise, thereby improving the overall signal-to-noise ratio beyond what a single matched filter could achieve.
2Ease of operation
If predetermined prototype pulses are stored on receiver systems, then signal processing is simplified, but adaptability to varying pulse signals is reduced
Solution Approach 1:
The patent performs preliminary actions by detecting repetitive pulse signals, estimating time intervals, and extracting pulse segments in advance. This preliminary processing creates a real-time prototype pulse that adapts to the actual received signals while maintaining the computational efficiency needed for practical implementation.
Solution Approach 2:
The patent implements a dynamic approach by continuously detecting repetitive pulse signals and updating the prototype pulse in real-time based on the received signals. This allows the system to adapt to varying pulse characteristics while maintaining simplified processing through the structured algorithm of extraction, alignment, and averaging.
3Measurement precision
If pulse signal segments are extracted and aligned in real-time, then prototype pulse accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent changes key parameters including time delays and alignment offsets for each pulse segment. By systematically adjusting these temporal parameters to align pulses from different time intervals, the system achieves accurate prototype pulse construction while managing complexity through parameter-based control rather than complex structural design.
Data Source
AI summary
Methods and systems for developing a prototype pulse in real-time. A method includes detecting, by a signal processor, a plurality of repetitive pulse signals carried in energy waves received at an antenna. The method further includes estimating time intervals corresponding to occurrences of the plurality of repetitive pulse signals and extracting a plurality of pulse signal segments detected by the signal processor during each of the time intervals over a time period. The signal processor selects a first pulse signal segment received during one of the time intervals and calculates respective time delays relative to the first pulse signal segment for each remaining pulse signal segment of the plurality of pulse signal segments. The signal processor then time-aligns the extracted pulse signal segments with the first pulse signal segment and averages the pulse signal segments to establish a prototype pulse signal.