标题： 使用32x64超声波换能器-麦克风阵列的高密度MIMO定位技术及实时数据流 显示英文标题

标题： High-Density MIMO Localization Using a 32x64 Ultrasonic Transducer-Microphone Array with Real-Time Data Streaming

摘要： 在本工作中，我们提出了一种新颖的超声阵列系统，该系统采用大规模MIMO（多输入多输出）架构，用于高精度定位。该系统结合了32个发射器和62个麦克风，创建了一个扩展的虚拟孔径，提高了信道可分离性和空间分辨率。每个发射器在超声频段内由随机相位多正弦激励，这降低了信道间相关性，并增强了对抗多路径的鲁棒性。通过反射体成像的仿真和在实际换能器带宽约束下的信道分离分析，验证了该方法的可行性。结果表明，与单发射器配置相比，MIMO处理能够实现更好的反射体分离，尽管实际限制如换能器带宽会降低可实现的信道隔离度。 显示英文摘要

摘要： In this work, we present a novel ultrasonic array system designed for high-precision localization using a large-scale MIMO (Multiple-Input Multiple-Output) architecture. The system combines 32 transmitters with 62 microphones, creating an extended virtual aperture that improves channel separability and spatial resolution. Each transmitter is excited by a random-phase multisine within the ultrasonic band, which reduces inter-channel correlation and increases robustness against multipath. The feasibility of the approach is demonstrated through simulations of reflector imaging and analysis of channel separation under realistic transducer bandwidth constraints. Results show that MIMO processing enables improved separation of reflectors compared to single-emitter configurations, although practical limitations such as transducer bandwidth reduce the achievable channel isolation.