Radar Signal Processing Device for In-Band Interference Prediction
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Solution Overview
Problem
Current radar technologies face challenges in effectively predicting and avoiding in-band interference signals, leading to reduced performance and unnecessary resource usage due to random avoidance methods with low success rates.
Innovation Solution
A radar signal processing device and method that divides transmission signals into blocks, configures interference reference flags, detects impulsive noise, and predicts in-band interference using in-band flags, allowing for proactive avoidance through frequency or time hopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If random avoidance method is used for in-band interference signals, then the radar device can operate without additional hardware, but the probability of successfully avoiding interference is low
Solution Approach 1:
The patent applies preliminary action by dividing the transmission signal into multiple blocks and configuring interference reference flags in advance for specific blocks. The system predicts in-band interference occurrence before it affects the entire signal, allowing proactive avoidance measures to be taken for only the affected blocks rather than the entire transmission sequence.
Solution Approach 2:
The patent segments the transmission signal into multiple time-based blocks and applies interference reference flags selectively to specific blocks where in-band interference is predicted to occur. This segmentation allows the radar system to avoid interference in affected blocks while maintaining normal operation in unaffected blocks, improving overall interference avoidance effectiveness without requiring complete signal interruption.
2Productivity
If random avoidance method is used, then hardware resources are preserved, but time and resources are wasted due to low avoidance probability
Solution Approach 1:
The patent implements feedback by detecting impulsive noise in received signals and using this information to update interference reference flags for future transmission blocks. The system continuously monitors the environment, learns from detected interference patterns, and adjusts its avoidance strategy accordingly, thereby improving the probability of successful interference avoidance over time.
Solution Approach 2:
By predicting in-band interference occurrence in advance through the interference reference flag mechanism, the system prepares avoidance measures before interference actually occurs. This preliminary action eliminates the need for repeated unsuccessful random avoidance attempts, reducing time loss and improving productivity.
3Reliability
If in-band interference is not detected, then the radar continues operating normally, but performance degrades due to undetected interference
Solution Approach 1:
The patent uses an intermediary approach by introducing interference reference flags as a mediator between the transmitted signal and the received signal analysis. These flags mark specific blocks where in-band interference is expected, enabling the system to focus its detection efforts on predetermined critical regions rather than analyzing the entire signal, thus making interference detection more manageable and effective.
Solution Approach 2:
The system performs preliminary action by pre-configuring interference reference flags that indicate where in-band interference is likely to occur. This preparation enables the radar to actively search for and detect interference in specific predetermined blocks, significantly improving target detection accuracy in the presence of in-band interference compared to passive operation without detection capabilities.
Data Source
AI summary
The present invention relates to a device that processes a radar signal, and a method therefor. More particularly, the present invention relates to a device and a method for reducing an interference signal by predicting occurrence of an in-band interference signal. Particularly, the present invention provides a radar signal processing device and method, the radar signal processing device comprising: an interference reference flag configuration unit that divides a transmission signal into a plurality of blocks in preconfigured time units on a time axis, and configures an interference reference flag for one or more specific blocks selected among the plurality of blocks; an impulsive noise detection unit that detects whether an impulsive noise occurs in each of the plurality of blocks, by using a reception signal; an in-band flag configuration unit that configures an in-band flag by using the interference reference flag and a block in which the impulsive noise is detected; and an interference signal prediction unit that predicts introduction of an in-band interference signal according to whether an in-band flag exists.