{"id":77322,"date":"2023-04-03T09:22:00","date_gmt":"2023-04-03T14:22:00","guid":{"rendered":"https:\/\/gisgeography.com\/?p=77322"},"modified":"2023-11-18T11:20:48","modified_gmt":"2023-11-18T17:20:48","slug":"differential-gps","status":"publish","type":"post","link":"https:\/\/gisgeography.com\/differential-gps\/","title":{"rendered":"Differential GPS: What It Is and How to Use It"},"content":{"rendered":"<style>.kb-image77322_dffdcb-8b .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image77322_dffdcb-8b size-medium_large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"432\" src=\"https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-768x432.jpg\" alt=\"Differential GPS\" class=\"kb-img wp-image-77323\" srcset=\"https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-768x432.jpg 768w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-300x169.jpg 300w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-678x381.jpg 678w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-200x113.jpg 200w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-425x239.jpg 425w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-550x309.jpg 550w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-115x65.jpg 115w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-1000x563.jpg 1000w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS-360x203.jpg 360w, https:\/\/gisgeography.com\/wp-content\/uploads\/2023\/01\/Differential-GPS.jpg 1200w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><style>.wp-block-kadence-advancedheading.kt-adv-heading77322_92ce51-0b, .wp-block-kadence-advancedheading.kt-adv-heading77322_92ce51-0b[data-kb-block=\"kb-adv-heading77322_92ce51-0b\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading77322_92ce51-0b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading77322_92ce51-0b[data-kb-block=\"kb-adv-heading77322_92ce51-0b\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading77322_92ce51-0b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading77322_92ce51-0b[data-kb-block=\"kb-adv-heading77322_92ce51-0b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading77322_92ce51-0b wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading77322_92ce51-0b\">What Is Differential GPS?<\/h2>\n\n\n\n<p>Differential GPS (DGPS) is an important tool in modern navigation. This system uses satellites and <strong>reference stations<\/strong> to make GPS receivers more accurate.<\/p>\n\n\n\n<p>This technology helps military personnel and professional surveyors navigate accurately and reliably.<\/p>\n\n\n\n<p>This article will give an overview of DGPS, explaining what it is and how to use it effectively. We will cover the basics, its components, and what it can do for you.<\/p>\n\n\n\n<p>With this information, you will be able to make the most of your DGPS and get the <strong>most accurate positioning<\/strong> possible.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><style>.wp-block-kadence-advancedheading.kt-adv-heading77322_b21664-2c, .wp-block-kadence-advancedheading.kt-adv-heading77322_b21664-2c[data-kb-block=\"kb-adv-heading77322_b21664-2c\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading77322_b21664-2c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading77322_b21664-2c[data-kb-block=\"kb-adv-heading77322_b21664-2c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading77322_b21664-2c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading77322_b21664-2c[data-kb-block=\"kb-adv-heading77322_b21664-2c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading77322_b21664-2c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading77322_b21664-2c\">How Does DGPS Work?<\/h2>\n\n\n\n<p>Before going into the details of how DGPS works, it\u2019s important to understand how GPS works. GPS is a satellite-based navigation system that has been around since the 1980s. In North America, the <a href=\"https:\/\/www.gps.gov\/\" target=\"_blank\" rel=\"noreferrer noopener\">US government owns and operates the GPS network<\/a>, which provides free, accurate data to anyone with a GPS receiver.<\/p>\n\n\n<style>.kb-image77322_1dc781-21.kb-image-is-ratio-size, .kb-image77322_1dc781-21 .kb-image-is-ratio-size{max-width:500px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image77322_1dc781-21.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image77322_1dc781-21 .kb-image-is-ratio-size{align-self:unset;}.kb-image77322_1dc781-21 figure{max-width:500px;}.kb-image77322_1dc781-21 .image-is-svg, .kb-image77322_1dc781-21 .image-is-svg img{width:100%;}.kb-image77322_1dc781-21 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image77322_1dc781-21\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"678\" height=\"415\" src=\"https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-678x415.png\" alt=\"\" class=\"kb-img wp-image-13658\" srcset=\"https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-678x415.png 678w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-300x184.png 300w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-768x470.png 768w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-50x31.png 50w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-200x123.png 200w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-425x260.png 425w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-550x337.png 550w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-115x70.png 115w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction-253x155.png 253w, https:\/\/gisgeography.com\/wp-content\/uploads\/2017\/01\/GPS-differential-correction.png 800w\" sizes=\"auto, (max-width: 678px) 100vw, 678px\" \/><\/figure><\/div>\n\n\n\n<p>GPS works by receiving information from a network of satellites that are in medium Earth orbit (MEO). These satellites <strong>send out radio signals<\/strong> that users can detect with GPS receivers. Then, this information helps calculate a user\u2019s position. From here, <a href=\"https:\/\/gisgeography.com\/trilateration-triangulation-gps\/\">GPS receivers use triangulation<\/a> to pinpoint anyone&#8217;s location.<\/p>\n\n\n\n<p>DGPS takes information from the GPS satellites. Then, it adds extra accuracy from <strong>ground-based reference stations<\/strong>. So instead of your typical 5-10 meters accuracy, you can get 1-3 meters accuracy with DGPS.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><style>.wp-block-kadence-advancedheading.kt-adv-heading77322_3ed325-aa, .wp-block-kadence-advancedheading.kt-adv-heading77322_3ed325-aa[data-kb-block=\"kb-adv-heading77322_3ed325-aa\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading77322_3ed325-aa mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading77322_3ed325-aa[data-kb-block=\"kb-adv-heading77322_3ed325-aa\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading77322_3ed325-aa img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading77322_3ed325-aa[data-kb-block=\"kb-adv-heading77322_3ed325-aa\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading77322_3ed325-aa wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading77322_3ed325-aa\">Benefits of Using DGPS<\/h2>\n\n\n\n<p>As you\u2019ve already learned, a DGPS is an improved version of the basic GPS. It uses additional reference stations to <strong>provide more accurate and reliable positioning data<\/strong>.<\/p>\n\n\n\n<p>The biggest benefit of DGPS is how surveyors can achieve improved accuracy and reliability. In general, a DGPS can <strong>achieve accuracies of 1-3 meters<\/strong>, depending on a variety of factors.<\/p>\n\n\n\n<p>This means that survey measurements can be conducted with greater precision and reliability. DGPS is perfect for surveying, construction, navigation, mapping, and engineering purposes.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Components of a DGPS System<\/h2>\n\n\n\n<p>Here are some of the critical components of a DGPS system:<\/p>\n\n\n\n<p>1. <strong>REFERENCE STATIONS<\/strong>: A network of ground-based reference stations is installed throughout the area. The DGPS system leverages this network of stations. These reference stations contain very accurate clocks. They receive signals from the satellites and compare them to their known position. Any discrepancies found are then sent out as corrections to users of the system. Reference stations are also known as fixed receivers or known points.<\/p>\n\n\n\n<p>2. <strong>GPS RECEIVERS<\/strong>: A mobile GPS receiver is the primary component of the DGPS system. First, it receives GPS signals from satellites and decodes them. Next, the receiver calculates the user\u2019s position. This is based on the information received from the satellites, which includes those from the reference station. This is how it obtained an increased accuracy.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Differential GPS is a type of navigation system that can provide more accurate data to GPS receivers. The positioning system uses GPS satellites and ground-based reference stations for accuracy.<\/p>\n\n\n\n<p>DGPS helps users <a href=\"https:\/\/gisgeography.com\/gps-accuracy-hdop-pdop-gdop-multipath\/\">improve GPS accuracy<\/a> by providing more precise data through differential correction. If you work in surveying, engineering, or maritime applications, a DGPS can provide the accuracy you need for success.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This article will give an overview of differential GPS (DGPS) including the basics, its components, and what it can do for you. <\/p>\n","protected":false},"author":2,"featured_media":77323,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[92],"tags":[218],"class_list":["post-77322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-remote-sensing","tag-gps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Differential GPS: What It Is and How to Use It - GIS Geography<\/title>\n<meta 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