Method for Evaluating Radar Systems

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This patent describes a method and system for evaluating radar systems, particularly those using MIMO (Multiple Input Multiple Output) techniques or sparse (under-sampled) antenna arrays. Instead of using all available radar antennas (the total radar array), the invention selectively utilizes only a portion of them (a partial radar array) for signal processing and target imaging. This approach applies sophisticated beamforming and signal optimization methods tailored to the properties of the partial array, which can lead to simpler and more efficient radar evaluation in scenarios where traditional full-array methods are impractical or computationally heavy.

Use CasesContent extracted from patent full text and abstract with AI.

• Automotive radar systems for advanced driver assistance and autonomous vehicles.
• Imaging radar in aviation, such as for obstacle detection or terrain mapping.
• Security and surveillance systems that use distributed radar arrays.
• Industrial radar-based measurement and monitoring systems.
• Mobile platforms, including ships and aircraft, requiring compact but precise radar imaging or target detection.
• Robotics navigation and collision avoidance using radar imaging.

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces computational complexity compared to full-array radar evaluation methods, making real-time processing more feasible.
• Improves signal quality in sparse or under-sampled radar arrays by reducing unwanted side lobes and diffraction patterns.
• Enables the use of large-aperture or distributed radar arrays without the need for complex calibration or compensation for inter-antenna distances.
• Supports efficient radar imaging and target localization even when targets are in the near field of the overall array.
• Allows design flexibility for compact radar arrays in vehicles, robotics, or other mobile platforms, improving integration and performance.
• Optimized beamforming and weighting techniques further enhance imaging accuracy and robustness to environmental variations.

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Patent Abstract

The invention relates to a method for evaluating, in particular for imaging and/or for a MIMO method, a radar system comprising at least one first radar unit for emitting and receiving signals and at least one second radar unit for emitting and receiving signals, which form a total radar array, wherein only a partial radar array of the total radar array is used in the evaluation.