Target Detection Signal Compression With Correlation Recovery
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Solution Overview
Problem
Existing target detection devices suffer from deterioration in performance due to signal loss during compression processing, which affects the accuracy of target detection.
Innovation Solution
A target detection device that includes a signal distribution circuit to divide reception signals, multiple signal compression circuits to compress each signal, and multiple signal recovery circuits to recover delay time and complex amplitude, along with a correlation processing circuit to extract correlated signal components and a target detection circuit to detect targets based on these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If signal compression is performed to reduce processing load, then processing efficiency is improved, but target detection performance deteriorates due to signal loss
Solution Approach 1:
The patent divides the reception signal into multiple signals and distributes them to multiple signal compression circuits. Each compression circuit processes a portion of the signal independently, allowing parallel compression that reduces overall processing load while preserving signal integrity through distributed processing rather than single-point compression loss.
Solution Approach 2:
The patent creates multiple copies of the reception signal by dividing it into multiple signals, then processes each copy through separate compression circuits. This copying approach allows the system to maintain redundancy and recover lost information through correlation processing, preventing the single-point failure effect of traditional compression loss.
2Productivity
If signal compression is performed to reduce processing load, then processing efficiency is improved, but measurement precision deteriorates
Solution Approach 1:
The patent segments the reception signal into multiple independent signal portions that are processed in parallel by multiple compression circuits. This segmentation allows each circuit to work with reduced data volume while the collective output maintains measurement precision through correlation processing that reconstructs accurate target information.
Solution Approach 2:
The patent implements feedback through correlation processing that analyzes the compressed signals to extract accurate target information. The correlation processing circuit receives signals from multiple compression circuits and uses correlation analysis to feedback-correct any losses, ensuring measurement precision is maintained despite compression.
Data Source
AI summary
A target detection device includes: a signal distribution unit to acquire a reception signal indicating a reflected wave of a pulse wave every time the pulse wave is emitted into space and divide acquired reception signals; signal compression units to compress respective reception signals after dividing by the signal distribution unit; and signal recovery units to recover a delay time of a reception signal after compression by any one signal compression unit among the signal compression units and a complex amplitude of the reception signal after compression and output a recovery signal indicating the delay time and the complex amplitude. Further, the target detection device includes a correlation processing unit to extract signal components correlated with each other from recovery signals output from the signal recovery units, and a target detection unit to detect a target on the basis of the signal components extracted by the correlation processing unit.