Radar Target Tracking via Signal Strength Filtering
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Solution Overview
Problem
Current radar systems face interference and false target detection issues due to the increasing number of vehicles equipped with radar devices, leading to unreliable target tracking in environments with multiple radar sources operating in proximity.
Innovation Solution
A method that measures the received signal strength of radar images and compares it to a filtered signal strength threshold, allowing for accurate tracking of radar bins and reducing false target detection by excluding bins with signal strengths significantly different from the filtered signal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If radar systems operate in environments with multiple radar sources, then the coverage and detection capability increase, but interference and false target detection issues arise
Solution Approach 1:
The patent segments the radar signal processing into distinct components: receiving multiple radar signals, generating separate radar images from each signal, and processing each image independently. This segmentation allows the system to handle multiple radar sources while maintaining reliable target tracking by comparing results across different signal segments
Solution Approach 2:
The patent implements feedback mechanisms where the system continuously monitors signal strength variations and adjusts target tracking decisions based on filtered signal strength comparisons. The feedback loop compares current signal strength against filtered values to dynamically determine whether to track or exclude bins, improving reliability in multi-radar environments
2Measurement precision
If radar systems track all detected bins, then target detection coverage increases, but false target detection errors increase
Solution Approach 1:
The patent applies preliminary filtering actions by comparing signal strength against filtered signal strength values before making target tracking decisions. This preliminary action excludes bins with signal strength variations exceeding a threshold, preventing false targets from being tracked in the first place
Solution Approach 2:
The patent introduces an intermediary filtering mechanism that acts as a mediator between raw radar signal detection and final target tracking. The filtered signal strength comparison serves as an intermediary step that validates detections before they are committed to tracking, reducing false target detection errors
Data Source
AI summary
This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for radar target tracking based on return signal strength. A wireless device, such as a radar device, may measure a received signal strength of a detected signal. The received signal strength may be associated with at least one bin of a radar image. The wireless device may compare the received signal strength to a filtered signal strength. The filtered signal strength may be associated with a threshold difference in signal strength from the filtered signal strength. The wireless device may track the at least one bin of the radar image in response to the received signal strength being less than or equal to the threshold difference in signal strength from the filtered signal strength.