ANLOS-R: Acoustic Non-Line-of-Sight with Reflection

Within the scope of this study, a new dataset called ANLOS-R was created. The dataset is based on a multi-channel acoustic setup with 8 speakers and 8 microphones placed perpendicular to the ground on the same line. All speakers and microphones were positioned facing the wall, while the target objects were placed in the same room but with the direct line of sight blocked by the wall. Measurements were performed at three different positions: reference (0 cm), system shifted +5 cm to the right, and system shifted \u22125 cm to the left. This allows the system to provide multi-view data, offering both parallax effects and scene diversity. This configuration enables the analysis of different reflection angles, enhancing the model's position-independent generalization ability. Each measurement session begins with a single speaker\u2013microphone pair, followed by scanning all combinations in sequence, and finally switching to MIMO mode. All experiments were conducted in triplicate to cover WN, LB and non-living being (NLB) scenarios. Ambient temperature was recorded during the measurement period. ANLOS-R provides a multi-channel, multi-location, and multi-scenario acoustic dataset that can be used for both echo-based positioning and imaging in NLOS conditions and for material\/object classification.