| 摘要 |
A portable electronic navigational aid (104) e.g. for the blind (102), comprising a radio frequency, preferably millimeter wave, radar (218) with at least one transmitting (TX) channel and a plurality of receiving (RX) channels,at least one orientation sensor (220) con- figured to obtain data indicative of the orientation of the radar, and a processing element (210) configured to adaptively control (500, 602) thebeamforming of the radar based on the data provided by the ori- entation sensor. A corresponding method is presented. An accessory, such as a replaceable cover, containing a radio frequency radar for attaching to an electronic host device is presented. |
