Multi-Radar Target Alignment for Stable Moving-Target Communication
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Solution Overview
Problem
Conventional microwave communication fails to meet high-bandwidth requirements, and space optics communication, while offering high bandwidth, faces challenges in quickly aligning with moving targets due to low precision in alignment technologies such as satellite, mobile base station, and Bluetooth positioning.
Innovation Solution
A detection and communication system utilizing multiple radars (N radars) that separately search for and align with a target, with a control apparatus coordinating their efforts to improve alignment precision and communication stability, including overlapping electromagnetic wave coverage and feedback mechanisms to enhance target detection and tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional positioning technologies (satellite, mobile base station, Bluetooth) are used for target alignment, then the alignment process can be completed, but the alignment precision is low
Solution Approach 1:
The system divides the alignment and communication function into two independent modules: a second radar dedicated to tracking and pointing (alignment) and a first radar dedicated to communication. This segmentation allows each radar to optimize for its specific function, with the second radar achieving high-precision alignment and the first radar ensuring stable communication, thereby resolving the contradiction between alignment precision and communication stability.
2Reliability
If ATP (acquisition, tracking, and pointing) method is used for space optics communication, then communication link can be established, but it takes long time especially when target moves
Solution Approach 1:
The second radar performs preliminary tracking and pointing actions continuously before communication is needed. By maintaining pre-alignment readiness and continuously monitoring target position, the system eliminates the time-consuming ATP sequence that would otherwise be required when the target moves, thus reducing alignment time while ensuring communication reliability.
Solution Approach 2:
The second radar continuously tracks and points at the target rather than performing intermittent alignment checks. This continuous useful action ensures that alignment is maintained at all times, allowing immediate communication establishment even when the target moves, thereby eliminating delays while maintaining communication link reliability.
3Device complexity
If single radar is used for both communication and alignment, then device complexity is reduced, but alignment precision and communication stability cannot be simultaneously optimized
Solution Approach 1:
The system segments the radar functions into two specialized radars: a second radar optimized for tracking and pointing with high angular resolution for precise alignment, and a first radar optimized for communication with appropriate transmit power and beam characteristics. This functional segmentation achieves high alignment precision and communication stability simultaneously, while the segmentation itself is the primary source of increased device complexity.
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 system enables rapid target alignment and stable communication by reducing search time and improving alignment precision, ensuring reliable communication even with moving targets.
Implementation Method 1
N radars, where N is an integer greater than 1, are separately configured to search for a target and separately align with the target
Implementation Method 2
coverage regions of electromagnetic waves transmitted by the N radars overlap
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e
AI summary
A detection and communication system, a control apparatus, and a detection system are disclosed, and may be applied to fields such as augmented reality AR, virtual reality VR, or vehicle-road synergy. The detection and communication system includes: N radars, configured to: separately search for a target, and separately align with the target, where N is an integer greater than 1, K radars that are in the N radars and that align with the target are configured to communicate with the target, N-K radars other than the K radars are configured to track and point the target, and K is a positive integer less than N. The N radars separately align with the target, to help improve precision of alignment between the radar and the target. In addition, some of the N radars may communicate with the target. When more than one radar communicates with the target, this helps improve stability and reliability of communication between the radar and the target.