{"id":1907,"date":"2025-01-27T01:01:00","date_gmt":"2025-01-26T16:01:00","guid":{"rendered":"http:\/\/chino.local\/?post_type=project&#038;p=1907"},"modified":"2025-01-27T12:33:07","modified_gmt":"2025-01-27T03:33:07","slug":"indoor-positioning-using-mirror-image-speakers","status":"publish","type":"project","link":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/en\/project\/indoor-positioning-using-mirror-image-speakers","title":{"rendered":"Indoor Positioning using Mirror-image Speakers"},"content":{"rendered":"\n<div class=\"is-layout-flex wp-container-3 wp-block-columns\">\n<div class=\"is-layout-flow wp-block-column\" style=\"flex-basis:66.66%\">\n<p>Serious problems for deploying indoor positioning systems are related to issues including laborious and monetary costs. To solve the problems, we introduce the concept called &#8220;mirror-image speaker&#8221;. We assume that acoustic signals reflected by walls or floors are emitted from virtual speakers of their real speaker at its mirror-image positions. By conducting multi-lateration using direct and reflected signals, it is possible to accurately and precisely find a position of a target (e.g. smartphone). The proposed method will be implemented in a navigation system to be deployed at corridors in an office building where the number of available speakers is small and multiple reflective signals are receivable.<\/p>\n<\/div>\n\n\n\n<div class=\"is-layout-flow wp-block-column\" style=\"flex-basis:33.33%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/wp-content\/uploads\/2024\/12\/ranging-mirror-speaker.jpg\" alt=\"\" class=\"wp-image-4946\" width=\"247\" height=\"208\"\/><\/figure><\/div><\/div>\n<\/div>\n","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_locale":"en_US","_original_post":"http:\/\/chino.local\/?post_type=project&#038;p=338","vkexunit_cta_each_option":""},"project_category":[32],"acf":[],"_links":{"self":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/wp-json\/wp\/v2\/project\/1907"}],"collection":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/wp-json\/wp\/v2\/types\/project"}],"wp:attachment":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/wp-json\/wp\/v2\/media?parent=1907"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/wp-json\/wp\/v2\/project_category?post=1907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}