{"id":78835,"date":"2026-09-24T22:45:45","date_gmt":"2026-09-24T22:45:45","guid":{"rendered":"http:\/\/bangla.sitestree.com\/?p=78835"},"modified":"2026-09-24T22:45:45","modified_gmt":"2026-09-24T22:45:45","slug":"data-and-signals-a-simple-way-to-understand-how-communication-works","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=78835","title":{"rendered":"Data and Signals: A Simple Way to Understand How Communication Works"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Most digital communication can be understood with one simple idea:<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Data and Signals: A Simple Way to Understand How Communication Works<\/h5>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Data is the information represented in a form that a system can use. A signal is the physical way that data is carried from one place to another.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">This distinction sounds technical at first, but it becomes much easier when connected to everyday examples such as phone calls, Wi-Fi, music streaming, text messages, and fibre-optic Internet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Information, Data, Signal, and Medium<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">These four ideas are related, but they are not the same.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Information<\/strong> is the meaning that someone wants to communicate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cThe meeting starts at 9:00.\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">That sentence has meaning. That meaning is the information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Data<\/strong> is the representation of that information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A computer may represent text using numbers, and ultimately using bits such as:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>01001000 01100101 01101100 01101100 01101111<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">These bits are data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, written <code>0<\/code>s and <code>1<\/code>s do not physically travel through a cable or through the air. Something physical must represent them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is where the <strong>signal<\/strong> comes in.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A signal is a physical quantity that changes in a controlled way so that it can represent data. Depending on the communication system, the signal may involve:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>electrical changes in copper,<\/li>\n\n\n\n<li>light in optical fibre,<\/li>\n\n\n\n<li>radio waves through the air.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>medium<\/strong> is the path through which that signal travels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the overall idea is:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Information \u2192 Data \u2192 Signal \u2192 Medium \u2192 Signal \u2192 Data \u2192 Information<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">A Simple Phone Example<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Imagine saying:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cHello.\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">The meaning of \u201cHello\u201d is the information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A modern phone converts the sound of the voice into digital data. That data is then represented by signals and transmitted through the communication network.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The path might look conceptually like this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Voice\n  \u2193\nDigital data\n  \u2193\nSignal\n  \u2193\nCommunication network\n  \u2193\nSignal\n  \u2193\nDigital data\n  \u2193\nSound<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The receiver does not receive the original sound travelling all the way from one mouth to another. The communication system converts, represents, transmits, reconstructs, and plays the information.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does a Sound Wave Represent?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sound is a useful example because it shows the difference between information and a physical signal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A sound wave in air is created by <strong>variations in air pressure<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As sound travels, regions of higher and lower pressure move through the air.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These are commonly described as:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Compression<\/strong> \u2014 a region of relatively higher air pressure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rarefaction<\/strong> \u2014 a region of relatively lower air pressure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A graph of a sound wave may look like this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Pressure \/ amplitude\n        \u2191\n        |      \/\u203e\\      \/\u203e\\\n        |     \/   \\    \/   \\\n--------|----\/-----\\--\/-----\\----\u2192 Time\n        |   \/       \\\/       \\\n        |<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The wavy line does not mean that air molecules literally fly through the air in a curved path like that.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The graph simply shows <strong>how pressure changes over time<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The air molecules mainly vibrate back and forth around their normal positions while the pressure disturbance travels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does a Signal Graph Mean?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A signal graph can be understood as a picture of:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>How some physical quantity changes over time.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">The horizontal direction normally represents <strong>time<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The vertical direction represents some measurable property, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>voltage,<\/li>\n\n\n\n<li>signal strength,<\/li>\n\n\n\n<li>air pressure,<\/li>\n\n\n\n<li>light intensity.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Signal strength\n      \u2191\n      |       \/\\        \/\\\n      |      \/  \\      \/  \\\n      |_____\/    \\____\/    \\_____ \u2192 Time<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This picture simply says that the signal becomes stronger and weaker as time passes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once that basic idea is clear, several common terms become easier to understand.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Amplitude<\/strong> describes how large or strong the signal variation is.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Frequency<\/strong> describes how often the pattern repeats.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Period<\/strong> describes how long one complete repetition takes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Wavelength<\/strong> describes the physical distance covered by one complete repeating cycle of a wave.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Data Is Abstract; Signals Are Physical<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">One of the most useful ways to remember the distinction is:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Data is abstract. Signals are physical.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>10110010<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">is data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A physical communication system may represent that data using changing voltage levels, light patterns, or radio waves.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A very simplified electrical representation might look like:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Data:     1   0   1   1   0\n\nSignal:  HIGH LOW HIGH HIGH LOW<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Real communication systems can use much more sophisticated encoding, but the basic principle remains the same:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Physical signals represent data.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Text Messages Do Not Literally Fly Through the Air<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Suppose a phone sends:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cHi\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">over Wi-Fi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The letters <code>H<\/code> and <code>i<\/code> do not physically fly through the room.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The phone converts the text into digital data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That digital data is processed by networking hardware and represented in a radio signal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The radio signal travels through the air.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A receiving device detects the radio signal and reconstructs the data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the process is closer to:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\"Hi\"\n \u2193\nDigital representation\n \u2193\nBits\n \u2193\nRadio signal\n \u2193\nAir\n \u2193\nRadio signal received\n \u2193\nBits reconstructed\n \u2193\n\"Hi\"<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This is one of the clearest examples of the difference between <strong>data<\/strong> and <strong>signal<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Happens in Copper, Fibre, and Wireless?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The same data can be carried using very different physical signals.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Communication medium<\/th><th>Typical physical signal<\/th><\/tr><\/thead><tbody><tr><td>Copper cable<\/td><td>Electrical changes<\/td><\/tr><tr><td>Optical fibre<\/td><td>Light<\/td><\/tr><tr><td>Wi-Fi<\/td><td>Radio waves<\/td><\/tr><tr><td>Cellular network<\/td><td>Radio waves<\/td><\/tr><tr><td>Satellite communication<\/td><td>Radio\/microwave signals<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The data may remain logically the same even though the physical way of carrying it changes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, an Internet packet may travel:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Laptop\n  \u2193\nWi-Fi radio\n  \u2193\nAccess point\n  \u2193\nElectrical Ethernet signal\n  \u2193\nRouter\n  \u2193\nOptical fibre signal\n  \u2193\nService-provider network<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The same communication may pass through several different signal types before reaching its destination.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Analog and Digital<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Another common distinction is between <strong>analog<\/strong> and <strong>digital<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An <strong>analog quantity<\/strong> changes continuously.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Natural sound is a good example. Air pressure varies continuously as someone speaks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>digital representation<\/strong> uses discrete values.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Computers commonly represent data using binary values:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>0 and 1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">A microphone and digital audio system may therefore perform a process conceptually like:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Continuous sound\n      \u2193\nMeasurements \/ samples\n      \u2193\nNumbers\n      \u2193\nDigital data<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The reverse happens during playback:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Digital data\n      \u2193\nAudio reconstruction\n      \u2193\nSpeaker movement\n      \u2193\nSound waves<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Digital Data Does Not Mean Square Waves Everywhere<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A common misunderstanding is to imagine that digital communication always means perfect square-shaped electrical pulses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Digital data may be represented by many kinds of physical signals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, radio communication may encode digital information by changing properties such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>amplitude,<\/li>\n\n\n\n<li>frequency,<\/li>\n\n\n\n<li>phase,<\/li>\n\n\n\n<li>combinations of these.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Digital describes the data representation, not necessarily the shape of the physical signal.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">A Music Streaming Example<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Consider listening to music over Wi-Fi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The music is the information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The audio file contains digital data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The networking system processes that data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wi-Fi converts networking data into radio signals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The signal travels through the air.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The receiving device reconstructs the data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The audio system converts the digital audio into electrical signals that drive a speaker.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The speaker produces sound waves.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So one communication chain may look like:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Music\n \u2193\nDigital audio data\n \u2193\nNetwork data\n \u2193\nWi-Fi radio signal\n \u2193\nAir\n \u2193\nWi-Fi receiver\n \u2193\nNetwork data\n \u2193\nDigital audio\n \u2193\nSpeaker\n \u2193\nSound<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This shows that communication frequently involves several kinds of representation and several kinds of signals.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why This Distinction Matters<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Understanding data and signals makes many networking concepts easier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It helps explain:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>why computers use bits,<\/li>\n\n\n\n<li>why networks need physical media,<\/li>\n\n\n\n<li>why Wi-Fi uses radio,<\/li>\n\n\n\n<li>why fibre uses light,<\/li>\n\n\n\n<li>why copper carries electrical signals,<\/li>\n\n\n\n<li>why the same data can travel through different media,<\/li>\n\n\n\n<li>why signal quality affects communication,<\/li>\n\n\n\n<li>why data can remain unchanged even when the physical transmission technology changes.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">It also helps separate two questions that are often mixed together:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>What information are we sending?<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">and<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>How are we physically carrying it?<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">The first is mainly about information and data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The second is mainly about signals and transmission media.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The Simplest Mental Model<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The entire subject can be summarized with four ideas:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Information is what we mean.<\/strong><br><strong>Data is how we represent it.<\/strong><br><strong>Signal is how we physically carry it.<\/strong><br><strong>Medium is where the signal travels.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Or, in one line:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Information \u2192 Data \u2192 Signal \u2192 Medium \u2192 Signal \u2192 Data \u2192 Information<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">That simple chain explains a surprisingly large part of modern communication\u2014from voice calls and Wi-Fi to fibre optics, mobile networks, satellite systems, and the Internet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>From AI Tools as is.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Most digital communication can be understood with one simple idea: Data and Signals: A Simple Way to Understand How Communication Works Data is the information represented in a form that a system can use. A signal is the physical way that data is carried from one place to another. This distinction sounds technical at first, &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=78835\">Continue reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[265],"tags":[],"class_list":["post-78835","post","type-post","status-publish","format-standard","hentry","category-telecommunications","item-wrap"],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":71266,"url":"http:\/\/bangla.sitestree.com\/?p=71266","url_meta":{"origin":78835,"position":0},"title":"Difference: Auto-Regressive and Auto Correlation.","author":"Sayed","date":"September 27, 2021","format":false,"excerpt":"If you can, answer the question below: Write your answer in the comment box. Difference: Auto-Regressive and Auto Correlation.","rel":"","context":"In &quot;Matrix and Signal Processing&quot;","block_context":{"text":"Matrix and Signal Processing","link":"http:\/\/bangla.sitestree.com\/?cat=1944"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":321,"url":"http:\/\/bangla.sitestree.com\/?p=321","url_meta":{"origin":78835,"position":1},"title":"Word 2010 Essential &#8211; 73. Auto Correct and Auto Formatting","author":"Author-Check- Article-or-Video","date":"April 6, 2013","format":false,"excerpt":"","rel":"","context":"In &quot;Complete Courses&quot;","block_context":{"text":"Complete Courses","link":"http:\/\/bangla.sitestree.com\/?cat=29"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":71272,"url":"http:\/\/bangla.sitestree.com\/?p=71272","url_meta":{"origin":78835,"position":2},"title":"Give some examples of Auto-Regressive Processes?","author":"Sayed","date":"September 27, 2021","format":false,"excerpt":"If you can, answer the question below: Write your answer in the comment box. Give some examples of Auto-Regressive Processes?","rel":"","context":"In &quot;Matrix and Signal Processing&quot;","block_context":{"text":"Matrix and Signal Processing","link":"http:\/\/bangla.sitestree.com\/?cat=1944"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":71270,"url":"http:\/\/bangla.sitestree.com\/?p=71270","url_meta":{"origin":78835,"position":3},"title":"What is the relation between Auto-Regressive Process and Toeplitz systems?","author":"Sayed","date":"September 27, 2021","format":false,"excerpt":"If you can, answer the question below: Write your answer in the comment box. What is the relation between Auto-Regressive Process and Toeplitz systems?","rel":"","context":"In &quot;Matrix and Signal Processing&quot;","block_context":{"text":"Matrix and Signal Processing","link":"http:\/\/bangla.sitestree.com\/?cat=1944"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":71274,"url":"http:\/\/bangla.sitestree.com\/?p=71274","url_meta":{"origin":78835,"position":4},"title":"Can we say that voice and video signals, sinewaves-plus-noise, signals in control systems and signals induced by earthquakes are some examples of Auto-Regressive Processes?","author":"Sayed","date":"September 27, 2021","format":false,"excerpt":"If you can, answer the question below: Write your answer in the comment box. Can we say that voice and video signals, sinewaves-plus-noise, signals in control systems and signals induced by earthquakes are some examples of Auto-Regressive Processes?","rel":"","context":"In &quot;Matrix and Signal Processing&quot;","block_context":{"text":"Matrix and Signal Processing","link":"http:\/\/bangla.sitestree.com\/?cat=1944"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1155,"url":"http:\/\/bangla.sitestree.com\/?p=1155","url_meta":{"origin":78835,"position":5},"title":"Excel 2013 Tips,Tricks and Shortcuts (Bengali) &#8211; 22. Auto fill in Excel (\u098f\u0995\u09cd\u09b8\u09c7\u09b2\u09c7\u09b0 \u09e8\u09e6\u09e7\u09e9 \u099f\u09bf\u09aa\u09b8, \u099f\u09cd\u09b0\u09bf\u0995\u09b8 \u098f\u09ac\u0982 \u09b6\u09b0\u09cd\u099f\u0995\u09be\u099f (\u09ac\u09be\u0982\u09b2\u09be) &#8211; \u09e8\u09e8. \u098f\u0995\u09cd\u09b8\u09c7\u09b2 \u098f \u0985\u099f\u09cb \u09ab\u09bf\u09b2)","author":"Author-Check- Article-or-Video","date":"April 18, 2013","format":false,"excerpt":"","rel":"","context":"In &quot;Complete Courses&quot;","block_context":{"text":"Complete Courses","link":"http:\/\/bangla.sitestree.com\/?cat=29"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=78835"}],"version-history":[{"count":1,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78835\/revisions"}],"predecessor-version":[{"id":78836,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78835\/revisions\/78836"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=78835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=78835"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=78835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}