Analogue self-interference cancellation of co-frequency co-time unidirectional transponders for low earth orbit satellite systems

Analogue self-interference cancellation of co-frequency co-time unidirectional transponders for low earth orbit satellite systems | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Analogue self-interference cancellation of co-frequency co-time unidirectional transponders for low earth orbit satellite systems ShuoShuo Guo, Gang Ou, Xiaoyou Yu, Honglei Lin, Long Huang, Pengpeng Li This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4327104/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In the era of beyond 5G and 6G, the application of low earth orbit (LEO) satellites and space Internet techniques has become a hot topic of current research. The future trend in this domain is to integrate the communication, navigation, and remote sensing functions to build a satellite–ground integration network. One of the advantages is that it will greatly benefit from making up for the shortage of traditional terrestrial cellular network coverage and the precision, convergence time, and signal strength that users receive from high-orbit navigation satellites. However, developing such a versatile, sophisticated, and intelligent platform is still challenging. The main issue arises when the low earth orbit satellites, work as transponders and communicate with high orbit navigation satellites and terminal receivers on the ground in a co-frequency co-time unidirectional transponder (CCUT) leading to severe self-interference. what’s worse, the power augmentation signal sent to the GNSS receiver is far stronger than the navigation augmentation signal received from a high-orbit satellite, which leads to receiver saturation. In this paper, a self-interference cancellation algorithm has been realized on an embedded platform. Experimental results show that the cancellation depth at the navigation frequency band with 10.23MHz bandwidth was 30dB. Physical sciences/Engineering/Electrical and electronic engineering Physical sciences/Mathematics and computing/Information technology Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4327104","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":297369379,"identity":"f1d938c3-9193-4e9c-a9ce-584b6c471a6b","order_by":0,"name":"ShuoShuo Guo","email":"","orcid":"","institution":"Hunan University","correspondingAuthor":false,"prefix":"","firstName":"ShuoShuo","middleName":"","lastName":"Guo","suffix":""},{"id":297369388,"identity":"1af6fd5f-311c-4da9-825d-3862f18823f2","order_by":1,"name":"Gang Ou","email":"","orcid":"","institution":"National University of Defense Technology","correspondingAuthor":false,"prefix":"","firstName":"Gang","middleName":"","lastName":"Ou","suffix":""},{"id":297369391,"identity":"2694c64e-6fe6-4809-b3f0-c4cd3fe2ad52","order_by":2,"name":"Xiaoyou Yu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA2ElEQVRIiWNgGAWjYJCCA2CSvQdMMTYQr4XnDAlaIEAih0gtBjdyDA/8qDgsZ3Dz7bHHPAw2shsOMD97gF9LWsLBnjOHjQ1u56Ub8zCkGW84wGZugF9L8oEDvG2HEzfczjGT5mEAMg7wsEng15LYcPAvSMvNMyAt/4nRknzgMNiWGzwgLQcIa5E88yzhsMyZdGPJMzlmknMMko1nHmYzw6uF73iO8cc3FdZyfMfPmEm8qbCT7Tve/AyvFoUDYKoZ5k4gZsanHgjkG8BUHQFlo2AUjIJRMKIBAAj9TtWvuTAmAAAAAElFTkSuQmCC","orcid":"","institution":"Hunan University","correspondingAuthor":true,"prefix":"","firstName":"Xiaoyou","middleName":"","lastName":"Yu","suffix":""},{"id":297369392,"identity":"e5633bc8-4550-4e79-aeb9-4bd9c558e585","order_by":3,"name":"Honglei Lin","email":"","orcid":"","institution":"National University of Defense Technology","correspondingAuthor":false,"prefix":"","firstName":"Honglei","middleName":"","lastName":"Lin","suffix":""},{"id":297369393,"identity":"d8f253cf-8705-48ed-9059-7baf83356246","order_by":4,"name":"Long Huang","email":"","orcid":"","institution":"National University of Defense Technology","correspondingAuthor":false,"prefix":"","firstName":"Long","middleName":"","lastName":"Huang","suffix":""},{"id":297369394,"identity":"95852b5f-570e-47ea-a442-11f9461d04ca","order_by":5,"name":"Pengpeng Li","email":"","orcid":"","institution":"National University of Defense Technology","correspondingAuthor":false,"prefix":"","firstName":"Pengpeng","middleName":"","lastName":"Li","suffix":""}],"badges":[],"createdAt":"2024-04-26 04:14:25","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4327104/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4327104/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":67755179,"identity":"72302086-5bdb-4cc5-8537-0d793234cfea","added_by":"auto","created_at":"2024-10-29 11:09:12","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":859359,"visible":true,"origin":"","legend":"","description":"","filename":"aSIC202404301400EN.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4327104/v1_covered_a6847c63-87f7-448f-bdce-94bc3bb4f100.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Analogue self-interference cancellation of co-frequency co-time unidirectional transponders for low earth orbit satellite systems","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-4327104/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4327104/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn the era of beyond 5G and 6G, the application of low earth orbit (LEO) satellites and space Internet techniques has become a hot topic of current research. The future trend in this domain is to integrate the communication, navigation, and remote sensing functions to build a satellite\u0026ndash;ground integration network. One of the advantages is that it will greatly benefit from making up for the shortage of traditional terrestrial cellular network coverage and the precision, convergence time, and signal strength that users receive from high-orbit navigation satellites. However, developing such a versatile, sophisticated, and intelligent platform is still challenging. The main issue arises when the low earth orbit satellites, work as transponders and communicate with high orbit navigation satellites and terminal receivers on the ground in a co-frequency co-time unidirectional transponder (CCUT) leading to severe self-interference. what\u0026rsquo;s worse, the power augmentation signal sent to the GNSS receiver is far stronger than the navigation augmentation signal received from a high-orbit satellite, which leads to receiver saturation. In this paper, a self-interference cancellation algorithm has been realized on an embedded platform. Experimental results show that the cancellation depth at the navigation frequency band with 10.23MHz bandwidth was 30dB.\u003c/p\u003e","manuscriptTitle":"Analogue self-interference cancellation of co-frequency co-time unidirectional transponders for low earth orbit satellite systems","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-05-02 05:56:30","doi":"10.21203/rs.3.rs-4327104/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"4a2f096c-6a7a-4515-afec-e2938433f32b","owner":[],"postedDate":"May 2nd, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":31372418,"name":"Physical sciences/Engineering/Electrical and electronic engineering"},{"id":31372419,"name":"Physical sciences/Mathematics and computing/Information technology"}],"tags":[],"updatedAt":"2024-10-29T11:08:52+00:00","versionOfRecord":[],"versionCreatedAt":"2024-05-02 05:56:30","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4327104","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4327104","identity":"rs-4327104","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}