Radar Antenna Cluster Selection for Faster Signal Processing
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Solution Overview
Problem
Radar devices with multiple antennas face increased processing time for reception signals due to the number of antennas, which can exceed inspection cycle times, necessitating a solution to reduce processing time and power consumption.
Innovation Solution
A radar device with clusters of transmission and reception modules, where only selected clusters near the transmitting cluster receive and output signals, reducing unnecessary data processing and power consumption by excluding clusters that do not significantly contribute to the sensing result.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of antennas is increased to improve inspection accuracy, then measurement precision is improved, but processing time increases
Solution Approach 1:
The radar device segments the antenna array into multiple clusters, where each cluster contains a group of antennas. This segmentation allows the system to process reception signals from different clusters independently and in parallel, reducing the overall processing time while maintaining the total number of antennas for high inspection accuracy.
Solution Approach 2:
The system performs partial action by selectively processing reception signals only from clusters that are spatially close to the transmitting cluster. Clusters that are far away are excluded from processing, which reduces the processing load and time while still capturing the majority of relevant reflection signals for accurate inspection.
2Measurement precision
If the number of antennas is increased to improve inspection accuracy, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The antenna array is divided into multiple clusters that can be independently controlled. This segmentation enables the system to activate only the necessary clusters for each transmission event, reducing overall power consumption while maintaining the capability for high-accuracy inspection when needed.
Solution Approach 2:
The system performs partial action by activating and processing signals only from clusters that are spatially close to the transmitting cluster. This selective operation reduces the number of active components at any given time, thereby reducing power consumption while still achieving accurate inspection results.
3Measurement precision
If all clusters output reception signals to maintain inspection accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The radar device segments the antenna array into multiple clusters with distinct functional roles. Transmission clusters send electromagnetic waves, while reception clusters receive and output signals. This segmentation simplifies the data processing architecture by organizing antennas into manageable groups with specific functions, reducing overall system complexity.
Solution Approach 2:
The system performs partial action by having only specific clusters (those close to the transmitting cluster) output reception signals. This selective signal output reduces the volume of data that needs to be processed and transmitted, thereby reducing device complexity while maintaining sufficient inspection accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for faster signal processing and reduced power consumption by selectively activating only relevant clusters, maintaining inspection accuracy while meeting cycle time requirements.
Implementation Method 1
cause a first cluster of the clusters to transmit an electromagnetic wave to a target, cause the first cluster and at least one second cluster adjacent to the first cluster to receive a reflected wave from the target
Data Source
AI summary
According to one embodiment, a radar device comprises a panel including clusters and a controller. The controller is configured to cause a first cluster of the clusters to transmit an electromagnetic wave to a target, cause the first cluster and at least one second cluster adjacent to the first cluster to receive a reflected wave from the target, and cause the first cluster and the at least one second cluster to output a reception signal. At least one cluster other than the first cluster and other than the at least one second cluster does not output the reception signal.