Radar Signal Assistant for Clutter-Aware Object Detection
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Solution Overview
Problem
Radar sensors in autonomous vehicles have lower resolution and difficulty in data collection due to clutter, making it challenging to increase detection accuracy and interpret radar information effectively.
Innovation Solution
An assistant apparatus that includes a radar signal receiver, analyzer, and producer to adjust, filter, and transform radar signals, enhancing detection performance by generating assistant apparatus production signals that can be recognized by radar devices, and is integrated with portable devices like smartphones or smartwatches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radar sensor is used for autonomous vehicle sensing, then stable operation in rainy or snowy weather is achieved, but lower resolution and difficulty in interpreting radar information occurs
Solution Approach 1:
The patent introduces an assistant apparatus that acts as an intermediary between the radar sensor and the processing system. This apparatus includes a radar signal receiver, analyzer, and producer that work together to process raw radar signals, extract meaningful information, and generate enhanced output signals that improve both resolution and interpretability while maintaining the radar's reliable operation in adverse weather conditions
2Measurement precision
If deep learning technology is used to increase detection accuracy, then accuracy improvement is achieved, but large amount of data collection is required which is difficult due to clutter
Solution Approach 1:
The assistant apparatus performs preliminary signal processing and analysis before data is fed into deep learning algorithms. By pre-processing radar signals to extract relevant features and remove clutter, the system reduces the amount of raw data that needs to be collected and processed, while still achieving high detection accuracy through the combination of preliminary processing and subsequent deep learning analysis
3Device complexity
If conventional radar detection algorithm is used, then low complexity is achieved, but detection accuracy cannot be increased due to large amount of clutter
Solution Approach 1:
The patent segments the radar detection process into distinct functional modules: signal reception, signal analysis, and signal production. Each module handles specific aspects of signal processing, allowing the system to manage clutter effectively through specialized processing in each segment while maintaining overall algorithmic simplicity and low computational complexity
Data Source
AI summary
Disclosed is a radar detection assistant apparatus for increasing detection accuracy when detecting an object using a radar detection device. The radar detection assistant apparatus includes a radar signal receiver for adjusting a radar candidate signal received through a reception antenna to a predetermined magnitude and filtering out a signal other than the radar candidate signal, a radar signal analyzer for receiving the radar candidate signal from the radar signal receiver and determining whether or not the radar candidate signal is a preset radar signal, a radar signal production controller for generating a control signal for an assistant apparatus production signal or an assistant apparatus reproduction signal on the basis of at least one of pieces of information on a type, a bandwidth, and a period of the radar candidate signal received from the radar signal analyzer, and a radar signal producer.