{"id":199,"date":"2020-04-26T22:53:01","date_gmt":"2020-04-26T22:53:01","guid":{"rendered":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/?p=199"},"modified":"2020-05-05T19:45:27","modified_gmt":"2020-05-05T19:45:27","slug":"shivas-status-update-for-04-26","status":"publish","type":"post","link":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/2020\/04\/26\/shivas-status-update-for-04-26\/","title":{"rendered":"Shiva&#8217;s Status Update for 04\/26"},"content":{"rendered":"<p>This week, I worked on the final presentation and collected more data to help Udit and Rhea refine the multilateration algorithm:<\/p>\n<p><iframe loading=\"lazy\" width=\"525\" height=\"295\" src=\"https:\/\/www.youtube.com\/embed\/8kI62U4vEwc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>At Tamal&#8217;s recommendation, I let the anchors &#8216;warm up&#8217; by running them continuously for at least 30 minutes prior to testing. This contributed to a significant reduction in timestamp reception variance in real-world testing, sampled below:<\/p>\n<p><em><span style=\"font-weight: 400\">Test 10 &#8212; Stats of Direct Difference in Synchronized Reception Timestamps between Anchors that are equidistant from Tag, in Nanoseconds:<\/span><\/em><\/p>\n<p><em><span style=\"font-size: 1rem\">Mean = -0.11842105263157894, <\/span><\/em><\/p>\n<p><em><span style=\"font-size: 1rem\">Median = 0.0<\/span><\/em><\/p>\n<p><em><span style=\"font-size: 1rem\">St. Dev = 0.8105733069084967<\/span><\/em><\/p>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_200\" aria-describedby=\"caption-attachment-200\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-200 size-medium\" src=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-300x164.png\" alt=\"\" width=\"300\" height=\"164\" srcset=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-300x164.png 300w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-768x420.png 768w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-1024x559.png 1024w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers.png 1254w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-200\" class=\"wp-caption-text\">Test 10: Graph of Difference in Pulse Reception Times for Anchors each 100 CM from Tag, After 60 Minutes Warm-Up<\/figcaption><\/figure>\n<p>&#8212;-<\/p>\n<p><em><span style=\"font-weight: 400\">Test 11 &#8211; Stats of Direct Difference in Reception Timestamps between Anchors that are equidistant from Tag, in Nanoseconds: <\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">Mean = 0.3470031545741325, <\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">Median = 0.0, <\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">St. Dev = 1.4427340556024508<\/span><\/em><\/p>\n<figure id=\"attachment_201\" aria-describedby=\"caption-attachment-201\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-201\" src=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-1-300x167.png\" alt=\"\" width=\"300\" height=\"167\" srcset=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-1-300x167.png 300w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-1-768x428.png 768w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-1-1024x570.png 1024w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/direct-diffs-NO_outliers-1.png 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-201\" class=\"wp-caption-text\">Test 11: Anchors 100 CM from Tag, No Obstacles, After 60+ Minutes Warm-Up<\/figcaption><\/figure>\n<p>We are on schedule for our presentation this week and demo + report next week. Next week,\u00a0 I will work on the report and, if needed, scale up the experiment for more anchors.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-202\" src=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/Screen-Shot-2020-04-26-at-6.51.43-PM-300x153.png\" alt=\"\" width=\"300\" height=\"153\" srcset=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/Screen-Shot-2020-04-26-at-6.51.43-PM-300x153.png 300w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/Screen-Shot-2020-04-26-at-6.51.43-PM-768x393.png 768w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/Screen-Shot-2020-04-26-at-6.51.43-PM-1024x524.png 1024w, http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-content\/uploads\/sites\/88\/2020\/04\/Screen-Shot-2020-04-26-at-6.51.43-PM.png 2026w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This week, I worked on the final presentation and collected more data to help Udit and Rhea refine the multilateration algorithm: At Tamal&#8217;s recommendation, I let the anchors &#8216;warm up&#8217; by running them continuously for at least 30 minutes prior to testing. This contributed to a significant reduction in timestamp reception variance in real-world testing, &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/2020\/04\/26\/shivas-status-update-for-04-26\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Shiva&#8217;s Status Update for 04\/26&#8221;<\/span><\/a><\/p>\n","protected":false},"author":269,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/posts\/199"}],"collection":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/users\/269"}],"replies":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/comments?post=199"}],"version-history":[{"count":2,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/posts\/199\/revisions"}],"predecessor-version":[{"id":204,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/posts\/199\/revisions\/204"}],"wp:attachment":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/media?parent=199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/categories?post=199"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s20-teamb6\/wp-json\/wp\/v2\/tags?post=199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}