Pulse Signal Overlap Detection Using Duty-Adjusted Intermediary
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for detecting the overlap of pulse signals in distance estimation technologies face challenges in accurately identifying overlaps, especially when the overlap occurs in a very small portion, leading to inaccuracies in distance calculation between wireless communication devices.
Innovation Solution
A device and method that generate a new pulse signal with increased duty, identical to one of the pulse signals, and multiply it with the original pulse signals to detect overlaps, determining the middle of the pulse with the greatest width as the point of overlap, thereby enhancing detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the conventional method of multiplying two pulse signals directly is used to detect overlap, then the detection process is simple, but the overlap detection accuracy deteriorates when the overlap occurs in a very small portion
Solution Approach 1:
The patent introduces a third pulse signal as an intermediary element to facilitate the detection of overlap between the first and second pulse signals. This third pulse signal, generated by increasing the duty of one of the original pulse signals, serves as a mediator that when multiplied with both original signals and added together, produces an output signal where the overlap point becomes clearly identifiable as the middle of the pulse with greatest width, thereby solving the accuracy problem without excessive complexity
Solution Approach 2:
The patent changes the duty parameter of the pulse signals to create the third pulse signal. By increasing the duty of one of the original pulse signals, the system transforms the pulse characteristics to enable more accurate overlap detection. This parameter change allows the overlap point to be identified as the middle of the pulse with greatest width in the output signal, resolving the contradiction between detection accuracy and process simplicity
2Reliability
If the pulse signals are multiplied and only high value overlaps are detected, then the detection method is straightforward, but the reliability deteriorates for small portion overlaps
Solution Approach 1:
The third pulse signal acts as a reliable intermediary that ensures consistent detection of overlap points regardless of the overlap size. By multiplying both original pulse signals with this intermediary and adding the results, the system reliably identifies the overlap point as the middle of the pulse with greatest width, making the detection method reliable even for small portion overlaps while maintaining reasonable complexity
Solution Approach 2:
The system performs preliminary action by generating the third pulse signal with increased duty before the actual overlap detection process. This preparatory step ensures that when the multiplication and addition operations are performed, the overlap point is already positioned to be clearly identifiable as the middle of the pulse with greatest width, thereby improving reliability without adding significant complexity to the overall method
Data Source
AI summary
There is provided a device and method for detecting an overlap of pulse signals, capable of easily detecting a point where reference and delayed pulse signals overlap each other, and an apparatus for estimating a distance using the same. The device for detecting an overlap of pulse signals, the device detecting a point where first and second pulse signals having different frequencies begin to overlap each other, the device including: a duty adjustor generating a third pulse signal by increasing a duty of the second pulse signal; a pulse signal calculator multiplying the first and second pulse signals by the third pulse signal, respectively and adding respective results together to output a signal; and an overlap determiner determining a middle of a pulse with a greatest width in the signal outputted from the pulse signal calculator as a point where the first and second pulse signals overlap each other.