MIMO Antenna Array Transmission Modes for Precise Obstacle Detection
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Solution Overview
Problem
Existing systems face challenges in efficiently controlling transmissions via antenna arrays in autonomous and robotic devices, particularly in navigating and perceiving the environment using sensor data, especially in dynamic conditions.
Innovation Solution
Implementing a radar system with a MIMO antenna array and a radar processor to control transmissions via multiple modes, utilizing spatial filtering and beamforming techniques to enhance perception and navigation capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a radar system uses a MIMO antenna array with multiple transmission modes to enhance perception and navigation capabilities, then the measurement precision of range, velocity, and angle information is improved, but the device complexity increases
Solution Approach 1:
The patent implements a radar system with a MIMO antenna array that supports multiple transmission modes (first transmission mode with first beamforming weights, second transmission mode with second beamforming weights, and third transmission mode with third beamforming weights) using the same hardware infrastructure. This multi-functionality allows the single radar system to perform various detection tasks with different beamforming configurations, improving measurement precision for range, velocity, and angle while avoiding the need for multiple separate radar systems.
Solution Approach 2:
The patent employs dynamic beamforming weight adjustment to switch between different transmission modes. The radar processor dynamically changes the beamforming weights applied to the MIMO antenna array elements based on the detected object's characteristics and the required measurement precision. This dynamic adaptation allows the system to optimize its performance for different detection scenarios without requiring physical reconfiguration, thereby improving measurement precision while managing device complexity through software-based control.
2Adaptability or versatility
If the radar system implements multiple transmission modes with different beamforming weights to detect objects at different ranges and velocities, then the adaptability of the system is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the radar processor receives object detection information from the antenna array, analyzes the object's characteristics (range, velocity, angular position), and automatically selects the appropriate transmission mode and beamforming weights. The system feeds back the detection results and adjusts the beamforming configuration accordingly, enabling automatic adaptation to different detection scenarios without requiring manual intervention, thus improving adaptability while maintaining ease of operation through automated control.
Solution Approach 2:
The radar system performs self-service by automatically determining the optimal transmission mode and beamforming weights based on the detected object's characteristics. The radar processor autonomously selects between first, second, and third transmission modes depending on the object's range and velocity, eliminating the need for user configuration. This self-service capability enhances adaptability to various detection scenarios while keeping the system easy to operate through autonomous decision-making.
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
Enhances the ability of autonomous vehicles and robots to accurately detect and navigate obstacles by providing precise range, velocity, and angle information, improving safety and operational efficiency.
Implementation Method 1
a radar system with a MIMO antenna array and a radar processor to control transmissions via multiple modes
Implementation Method 2
transmissions via an antenna array according to a plurality of transmission modes
Implementation Method 3
utilizing spatial filtering and beamforming techniques to enhance perception and navigation capabilities
Implementation Method 4
utilizing spatial filtering and beamforming techniques to enhance perception and navigation capabilities
Data Source
AI summary
For example, an apparatus may include a transmission controller configured to generate control signals to control transmissions via an antenna array according to a plurality of transmission modes, the plurality of transmission modes including a single-element transmission mode and a multi-element transmission mode. For example, the single-element transmission mode may include a plurality of single-element transmissions via a plurality of single-element antennas. For example, a single-element antenna may include a single antenna element of the antenna array. For example, the multi-element transmission mode may include a plurality of multi-element transmissions via a plurality of multi-element antennas. For example, a multi-element antenna may include two or more adjacent antenna elements of the antenna array. For example, a multi-element transmission via the multi-element antenna may include a simultaneous transmission via the two or more adjacent antenna elements.