{"id":132,"date":"2018-09-18T16:20:10","date_gmt":"2018-09-18T16:20:10","guid":{"rendered":"http:\/\/blogs.plymouth.ac.uk\/embedded-systems\/?page_id=132"},"modified":"2018-09-18T16:48:25","modified_gmt":"2018-09-18T16:48:25","slug":"glossary","status":"publish","type":"page","link":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/glossary-2\/glossary\/","title":{"rendered":"Analogue Signals (Glossary Entry)"},"content":{"rendered":"<p>[latexpage]<\/p>\n<p>A signal with a value that can take any value, typically between two limits. We say such values are \u2018continuous\u2019, i.e. there are no intervals or steps. An example is shown below. Here a signal $v_s(t)$\u00a0represents a voltage that is changing with time $t$. The signal can take <b>any<\/b> value such that $V_L \\leq V_s(t) \\leq V_U$, where $V_L$ \u00a0and $V_U$\u00a0are the lower and upper limits.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-148\" src=\"http:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform.png\" alt=\"\" width=\"1410\" height=\"666\" srcset=\"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform.png 1410w, https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform-300x142.png 300w, https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform-768x363.png 768w, https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform-1024x484.png 1024w, https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform-560x265.png 560w, https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform-260x123.png 260w, https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-content\/uploads\/sites\/94\/2018\/09\/AnalogueWaveform-160x76.png 160w\" sizes=\"auto, (max-width: 1410px) 100vw, 1410px\" \/><\/p>\n<p>All electrical systems are ultimately analogue when you look closely enough. I contrast, digital systems employ high-gain amplifiers to switch between two extremes very quickly, giving the impression of working in only two states.<\/p>\n<p><a href=\"http:\/\/blogs.plymouth.ac.uk\/embedded-systems\/mbed-os-2\/courses\/glossary-2\/\">Back to Glossary<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[latexpage] A signal with a value that can take any value, typically between two limits. We say such values are \u2018continuous\u2019, i.e. there are no intervals or steps. An example is shown below. Here a signal $v_s(t)$\u00a0represents a voltage that is changing with time $t$. The signal can take any value such that $V_L \\leq&hellip; <a class=\"more-link\" href=\"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/glossary-2\/glossary\/\">Continue reading <span class=\"screen-reader-text\">Analogue Signals (Glossary Entry)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":153,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-132","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/pages\/132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/comments?post=132"}],"version-history":[{"count":9,"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/pages\/132\/revisions"}],"predecessor-version":[{"id":164,"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/pages\/132\/revisions\/164"}],"up":[{"embeddable":true,"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/pages\/153"}],"wp:attachment":[{"href":"https:\/\/blogs.plymouth.ac.uk\/embedded-systems\/wp-json\/wp\/v2\/media?parent=132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}