{"id":1225,"date":"2020-10-13T16:13:00","date_gmt":"2020-10-13T16:13:00","guid":{"rendered":"https:\/\/oxts.com\/?p=1225"},"modified":"2025-04-29T10:48:44","modified_gmt":"2025-04-29T10:48:44","slug":"the-gps-signal","status":"publish","type":"post","link":"https:\/\/www.oxts.com\/zh\/the-gps-signal\/","title":{"rendered":"GPS \u4fe1\u53f7"},"content":{"rendered":"\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n\n            \n\n\n    \n\n    <h5 class=\"h5 mb-6\">The hardest part of understanding GPS is the signal itself.<\/h5>\n\n\n        <div class=\"wysiwyg p\">\n            <p>Calculating distance based on time is quite straight forward, and even trilateration (which we\u2019ll look at shortly), isn\u2019t as tricky as it sounds when you add a few diagrams. But the GPS signal and how it works is pretty involved.<\/p>\n<p>So what information is sent down to us? The unique signal transmitted from each satellite contains two codes and a message:<\/p>\n<ul>\n<li>C\/A code (coarse\/acquisition code)<\/li>\n<li>P code (precision code) [called Y code in its encrypted form]<\/li>\n<li>Navigation message<\/li>\n<\/ul>\n<p>The P code is encrypted for military use, and so can be ignored. It\u2019s encrypted to stop spoofing and to control who has access to the system. Incidentally, once the P code has been encrypted, it\u2019s referred to as Y code.<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>\n\n\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n\n            \n\n\n    \n\n    <h5 class=\"h5 mb-6\">Carrier wave<\/h5>\n\n\n        <div class=\"wysiwyg p\">\n            <p>Two carrier waves are used:<br \/>\nLl = 1575.42 MHz<br \/>\nL2 = 1227.60 MHz<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>\n\n\n            \n<div class=\"contimage mwb-block py-8 lg:py-16\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-8 col-start-5\">\n        \n                \n\n           \n\n\n    <picture class=\"block w-full\">\n        <source\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-1200x0-c-default.webp 2x,\n                                https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-600x0-c-default.webp\"\n                                type=\"image\/webp\"\n                class=\"w-full object-center object-cover\"\n                media=\"(max-width:767px)\"\n        \/>\n                    <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-1600x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-800x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n                    media=\"(max-width:1023px)\"\n            \/>\n                            <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-2400x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-1200x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n            \/>\n                <img decoding=\"async\"\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-1200x0-c-default.png 2x\"\n                src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-carrier-wave-600x0-c-default.png\"\n                                title=\"GPS-carrier-wave\"\n                alt=\"\"\n                class=\"w-full object-center object-cover\"\n                height=\"760\"\n                width=\"1867\"\n                loading=\"lazy\"\n        \/>\n    <\/picture>\n\n\n    \n            <\/div>\n    <\/div>\n    <\/div>\n\n\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n\n            \n\n\n    \n\n    <h5 class=\"h5 mb-6\">C\/A code<\/h5>\n\n\n        <div class=\"wysiwyg p\">\n            <p>Each satellite modulates its own unique codes onto the carrier waves. The C\/A code that civilians can access is sent on Ll. It is made up of 1 ,023 bits.<\/p>\n<p>The entire code takes one millisecond to transmit and repeats endlessly.<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>\n\n\n            \n<div class=\"contimage mwb-block py-8 lg:py-16\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-8 col-start-5\">\n        \n                \n\n           \n\n\n    <picture class=\"block w-full\">\n        <source\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-1200x0-c-default.webp 2x,\n                                https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-600x0-c-default.webp\"\n                                type=\"image\/webp\"\n                class=\"w-full object-center object-cover\"\n                media=\"(max-width:767px)\"\n        \/>\n                    <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-1600x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-800x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n                    media=\"(max-width:1023px)\"\n            \/>\n                            <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-2400x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-1200x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n            \/>\n                <img decoding=\"async\"\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-1200x0-c-default.png 2x\"\n                src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-CA-code-600x0-c-default.png\"\n                                title=\"GPS-CA-code\"\n                alt=\"\"\n                class=\"w-full object-center object-cover\"\n                height=\"627\"\n                width=\"1879\"\n                loading=\"lazy\"\n        \/>\n    <\/picture>\n\n\n    \n            <\/div>\n    <\/div>\n    <\/div>\n\n\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n\n            \n\n\n    \n\n    <h5 class=\"h5 mb-6\">Navigation message<\/h5>\n\n\n        <div class=\"wysiwyg p\">\n            <p>As well as the C\/A code, a navigation message is also modulated onto the Ll carrier. This message contains lots of vital information and is quite long. However, because of the relatively slow rate that it is sent, it takes 12.5 minutes to send one complete message.<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>\n\n\n            \n<div class=\"contimage mwb-block py-8 lg:py-16\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-8 col-start-5\">\n        \n                \n\n           \n\n\n    <picture class=\"block w-full\">\n        <source\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-1200x0-c-default.webp 2x,\n                                https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-600x0-c-default.webp\"\n                                type=\"image\/webp\"\n                class=\"w-full object-center object-cover\"\n                media=\"(max-width:767px)\"\n        \/>\n                    <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-1600x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-800x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n                    media=\"(max-width:1023px)\"\n            \/>\n                            <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-2400x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-1200x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n            \/>\n                <img decoding=\"async\"\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-1200x0-c-default.png 2x\"\n                src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-navigation-message-600x0-c-default.png\"\n                                title=\"GPS-navigation-message\"\n                alt=\"\"\n                class=\"w-full object-center object-cover\"\n                height=\"801\"\n                width=\"1804\"\n                loading=\"lazy\"\n        \/>\n    <\/picture>\n\n\n    \n            <\/div>\n    <\/div>\n    <\/div>\n\n\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n\n            \n\n\n    \n\n    <h5 class=\"h5 mb-6\">P code<\/h5>\n\n\n        <div class=\"wysiwyg p\">\n            <p>A second unique code is modulated onto both the Ll and L2 carriers. This code is encrypted for military use and cannot be used by civilians. It contains many more bits and is sent at a higher speed, which allows authorised users to calculate position accuracy with much greater accuracy.<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>\n\n\n            \n<div class=\"contimage mwb-block py-8 lg:py-16\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-8 col-start-5\">\n        \n                \n\n           \n\n\n    <picture class=\"block w-full\">\n        <source\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-1200x0-c-default.webp 2x,\n                                https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-600x0-c-default.webp\"\n                                type=\"image\/webp\"\n                class=\"w-full object-center object-cover\"\n                media=\"(max-width:767px)\"\n        \/>\n                    <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-1600x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-800x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n                    media=\"(max-width:1023px)\"\n            \/>\n                            <source\n                    srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-2400x0-c-default.webp 2x,\n                                    https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-1200x0-c-default.webp\"\n                                        type=\"image\/webp\"\n                    class=\"w-full object-center object-cover\"\n            \/>\n                <img decoding=\"async\"\n                srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-1200x0-c-default.webp 2x\"\n                src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-P-code-600x0-c-default.webp\"\n                                title=\"GPS-P-code\"\n                alt=\"\"\n                class=\"w-full object-center object-cover\"\n                height=\"732\"\n                width=\"1781\"\n                loading=\"lazy\"\n        \/>\n    <\/picture>\n\n\n    \n            <\/div>\n    <\/div>\n    <\/div>\n\n\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n\n            \n\n\n    \n\n\n\n        <div class=\"wysiwyg p\">\n            <p>As civilians, we\u2019re only interested in the C\/A code and navigation message. The C\/A code is actually a binary string made up of 1,023 bits. At first glance the sequence appears to be completely random\u2014but it isn\u2019t. The sequence has been carefully composed so that if you wrote the sequence out on two pieces of tracing paper and overlaid them, there is only one position where they will match (as shown here).<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"802\" height=\"556\" src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code1-Binary-string.png\" alt=\"\" class=\"wp-image-1250\" srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code1-Binary-string.png 802w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code1-Binary-string-300x208.png 300w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code1-Binary-string-768x532.png 768w\" sizes=\"(max-width: 802px) 100vw, 802px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Binary string<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Example binary string written on paper.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Check for match<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Two copies are written on tracing paper and examined for a match.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1859\" height=\"1165\" src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code2-string-on-trace-paperV2.png\" alt=\"\" class=\"wp-image-1252\" srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code2-string-on-trace-paperV2.png 1859w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code2-string-on-trace-paperV2-300x188.png 300w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code2-string-on-trace-paperV2-1024x642.png 1024w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code2-string-on-trace-paperV2-768x481.png 768w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code2-string-on-trace-paperV2-1536x963.png 1536w\" sizes=\"(max-width: 1859px) 100vw, 1859px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1245\" height=\"813\" src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code3-trace-no-match.png\" alt=\"\" class=\"wp-image-1253\" srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code3-trace-no-match.png 1245w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code3-trace-no-match-300x196.png 300w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code3-trace-no-match-1024x669.png 1024w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code3-trace-no-match-768x502.png 768w\" sizes=\"(max-width: 1245px) 100vw, 1245px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">No match<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">We can see there is no match in this position.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Match<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The sequence matches in this position.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1074\" height=\"706\" src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code4-trace-match.png\" alt=\"\" class=\"wp-image-1254\" srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code4-trace-match.png 1074w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code4-trace-match-300x197.png 300w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code4-trace-match-1024x673.png 1024w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code4-trace-match-768x505.png 768w\" sizes=\"(max-width: 1074px) 100vw, 1074px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"909\" height=\"656\" src=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code5-trace-match2.png\" alt=\"\" class=\"wp-image-1255\" srcset=\"https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code5-trace-match2.png 909w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code5-trace-match2-300x217.png 300w, https:\/\/www.oxts.com\/wp-content\/uploads\/2025\/02\/GPS-code5-trace-match2-768x554.png 768w\" sizes=\"(max-width: 909px) 100vw, 909px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">Second match<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">We see the sequence also matches in this position (when one copy of the code is completely over the other).<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"conttitletext mwb-block py-4 lg:py-8\">\n        <div class=\"container md:grid md:grid-cols-12\">\n        <div class=\"col-span-6 col-start-5\">\n    \n           \n    \n            \n\n\n    \n\n    <h3 class=\"h3 mb-6\">C\/A code construction<\/h3>\n\n            \n\n\n    \n\n    <h5 class=\"h5 mb-6\">C\/A code is constructed so that the sequence only matches in one position.<\/h5>\n\n\n        <div class=\"wysiwyg p\">\n            <p>We\u2019ll look at why it\u2019s important the C\/A code only matches in one position later when we look\u00a0at<a href=\"https:\/\/www.oxts.com\/satellite-range\/\" rel=\"noopener\"><strong>\u00a0how distance from the satellite is calculated<\/strong><\/a>. For now, all we need to know is that the C\/A code each satellite transmits is unique to that satellite and that while it appears to be a random string of bits, it is not. The code actually follows a precise deterministic pattern, and so it is often called pseudo-random noise (PRN).<\/p>\n<p>The navigation message is different from C\/A code because it contains data. This includes information about clock corrections, satellite health, ephemeris (precise orbit) data, ionosphere model parameters and almanac (general information about all satellites in the constellation) data. Because of the amount of information contained in the navigation message, and the relatively slow rate that it\u2019s transmitted, it takes 12.5 minutes to send the whole message.<\/p>\n<p>The final part of the GPS signal we need to look at is the carrier itself. As we\u2019ve already said, each satellite transmits two frequencies\u2014L1 at 1575.42 MHz and L2 at 1227.60 MHz. All three elements (the C\/A code, Y code and navigation message) are modulated onto the L1 carrier, while only the Y code is modulated onto the L2 carrier. However, while civilian users can\u2019t demodulate the Y code from the L2 carrier, we can make use of the L2 carrier wave itself, as we explain in\u00a0<strong>\u2018<a href=\"https:\/\/www.oxts.com\/gnss-limitations\/\" rel=\"noopener\">What are differential corrections or DGPS?<\/a>\u2018<\/strong>.<\/p>\n<p>The C\/A code is modulated onto the carrier wave at 1.023 Mb\/s. The Navigation message is modulated onto the carrier at 50 b\/s.<\/p>\n<p>This is one of the articles in our \u2018<a href=\"https:\/\/www.oxts.com\/what-is-gnss\/\" rel=\"noopener\"><strong>What is GNSS?<\/strong><\/a>\u2018 series.<\/p>\n\n        <\/div>\n\n            <\/div>\n    <\/div>\n    \n            \n    <\/div>","protected":false},"excerpt":{"rendered":"<p>Binary string Example binary string written on paper. Check for match Two copies are written on tracing paper and examined for a match. No match We can see there is no match in this position. Match The sequence matches in this position. Second match We see the sequence also matches in this position (when one [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1245,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-articles"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/posts\/1225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/comments?post=1225"}],"version-history":[{"count":3,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/posts\/1225\/revisions"}],"predecessor-version":[{"id":1259,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/posts\/1225\/revisions\/1259"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/media\/1245"}],"wp:attachment":[{"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/media?parent=1225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/categories?post=1225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oxts.com\/zh\/wp-json\/wp\/v2\/tags?post=1225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}