{"id":"https://openalex.org/W4407586835","doi":"https://doi.org/10.25686/2306-2819.2021.4.6","title":"\u041c\u0435\u0442\u043e\u0434 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u043c\u043d\u043e\u0433\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u043e\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438\u043e\u043d\u043e\u0441\u0444\u0435\u0440\u043d\u044b\u0445 \u041a\u0412-\u0440\u0430\u0434\u0438\u043e\u043a\u0430\u043d\u0430\u043b\u043e\u0432 \u043f\u0440\u0438 \u0434\u0438\u0441\u0442\u0430\u043d\u0446\u0438\u043e\u043d\u043d\u043e\u043c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u043e\u043c \u0434\u0430\u043d\u043d\u044b\u0445","display_name":"\u041c\u0435\u0442\u043e\u0434 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u043c\u043d\u043e\u0433\u043e\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u043e\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438\u043e\u043d\u043e\u0441\u0444\u0435\u0440\u043d\u044b\u0445 \u041a\u0412-\u0440\u0430\u0434\u0438\u043e\u043a\u0430\u043d\u0430\u043b\u043e\u0432 \u043f\u0440\u0438 \u0434\u0438\u0441\u0442\u0430\u043d\u0446\u0438\u043e\u043d\u043d\u043e\u043c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u043e\u043c \u0434\u0430\u043d\u043d\u044b\u0445","publication_year":2022,"publication_date":"2022-03-25","ids":{"openalex":"https://openalex.org/W4407586835","doi":"https://doi.org/10.25686/2306-2819.2021.4.6"},"language":"ru","primary_location":{"id":"doi:10.25686/2306-2819.2021.4.6","doi":"https://doi.org/10.25686/2306-2819.2021.4.6","is_oa":true,"landing_page_url":"https://doi.org/10.25686/2306-2819.2021.4.6","pdf_url":null,"source":{"id":"https://openalex.org/S4210221414","display_name":"Vestnik of Volga State University of Technology Ser Radio Engineering and Infocommunication Systems","issn_l":"2306-2819","issn":["2306-2819"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["russia-white-list-2"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Vestnik of Volga State University of Technology. Series Radio Engineering and Infocommunication Systems","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://doi.org/10.25686/2306-2819.2021.4.6","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101348861","display_name":"\u0414\u043c\u0438\u0442\u0440\u0438\u0439 \u0412\u043b\u0430\u0434\u0438\u043c\u0438\u0440\u043e\u0432\u0438\u0447 \u0418\u0432\u0430\u043d\u043e\u0432","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I79052877","display_name":"Volga State University of Technology","ror":"https://ror.org/03ys49e51","country_code":"RU","type":"education","lineage":["https://openalex.org/I79052877"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"\u0414.\u0412. \u0418\u0432\u0430\u043d\u043e\u0432","raw_affiliation_strings":["\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442","institution_ids":["https://openalex.org/I79052877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020768130","display_name":"\u0412.\u0410. \u0418\u0432\u0430\u043d\u043e\u0432","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I79052877","display_name":"Volga State University of Technology","ror":"https://ror.org/03ys49e51","country_code":"RU","type":"education","lineage":["https://openalex.org/I79052877"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"\u0412.\u0410. \u0418\u0432\u0430\u043d\u043e\u0432","raw_affiliation_strings":["\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442","institution_ids":["https://openalex.org/I79052877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112263616","display_name":"A. A. Elsukov","orcid":"https://orcid.org/0000-0002-3092-5755","observed_orcids":["https://orcid.org/0000-0002-3092-5755"]},"institutions":[{"id":"https://openalex.org/I79052877","display_name":"Volga State University of Technology","ror":"https://ror.org/03ys49e51","country_code":"RU","type":"education","lineage":["https://openalex.org/I79052877"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"\u0410.\u0410. \u0415\u043b\u0441\u0443\u043a\u043e\u0432","raw_affiliation_strings":["\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442","institution_ids":["https://openalex.org/I79052877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5038868463","display_name":"N. A. Konkin","orcid":"https://orcid.org/0000-0001-7052-748X","observed_orcids":["https://orcid.org/0000-0001-7052-748X"]},"institutions":[{"id":"https://openalex.org/I79052877","display_name":"Volga State University of Technology","ror":"https://ror.org/03ys49e51","country_code":"RU","type":"education","lineage":["https://openalex.org/I79052877"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"\u041d.\u0410. \u041a\u043e\u043d\u043a\u0438\u043d","raw_affiliation_strings":["\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"\u041f\u043e\u0432\u043e\u043b\u0436\u0441\u043a\u0438\u0439 \u0433\u043e\u0441\u0443\u0434\u0430\u0440\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442","institution_ids":["https://openalex.org/I79052877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I79052877"],"apc_list":null,"apc_paid":null,"fwci":0.0987,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.38877683,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":null,"issue":"4(52)","first_page":"6","last_page":"23"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9390000104904175,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9390000104904175,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.00989999994635582,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10159","display_name":"Ionosphere and magnetosphere dynamics","score":0.005400000140070915,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ionospheric-diagnostics","display_name":"ionospheric diagnostics","score":0.625},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"cognitive radio","score":0.6710000038146973},{"id":"https://openalex.org/keywords/wideband-radio-channel","display_name":"wideband radio channel","score":0.5220000147819519},{"id":"https://openalex.org/keywords/frequency-division-multiplexing","display_name":"frequency division multiplexing","score":0.7319999933242798},{"id":"https://openalex.org/keywords/client-server-architecture","display_name":"client-server architecture","score":0.42899999022483826},{"id":"https://openalex.org/keywords/mobile-application","display_name":"mobile application","score":0.5379999876022339},{"id":"https://openalex.org/keywords/spectral-spreading","display_name":"spectrum spreading","score":0.4699999988079071}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.3166595697402954}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.25686/2306-2819.2021.4.6","doi":"https://doi.org/10.25686/2306-2819.2021.4.6","is_oa":true,"landing_page_url":"https://doi.org/10.25686/2306-2819.2021.4.6","pdf_url":null,"source":{"id":"https://openalex.org/S4210221414","display_name":"Vestnik of Volga State University of Technology Ser Radio Engineering and Infocommunication Systems","issn_l":"2306-2819","issn":["2306-2819"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["russia-white-list-2"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Vestnik of Volga State University of Technology. Series Radio Engineering and Infocommunication Systems","raw_type":"journal-article"},{"id":"doi:10.25686/2306-2819.2021.4.6","doi":"https://doi.org/10.25686/2306-2819.2021.4.6","is_oa":true,"landing_page_url":"https://doi.org/10.25686/2306-2819.2021.4.6","pdf_url":null,"source":{"id":"https://openalex.org/S7407052515","display_name":"Russian Agency for Digital Standardization","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"doi:10.25686/2306-2819.2021.4.6","doi":"https://doi.org/10.25686/2306-2819.2021.4.6","is_oa":true,"landing_page_url":"https://doi.org/10.25686/2306-2819.2021.4.6","pdf_url":null,"source":{"id":"https://openalex.org/S4210221414","display_name":"Vestnik of Volga State University of Technology Ser Radio Engineering and Infocommunication Systems","issn_l":"2306-2819","issn":["2306-2819"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["russia-white-list-2"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Vestnik of Volga State University of Technology. Series Radio Engineering and Infocommunication Systems","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.4943999946117401,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4407559566","https://openalex.org/W4415267467","https://openalex.org/W7110030926","https://openalex.org/W4407587021","https://openalex.org/W4407588137","https://openalex.org/W4407588317","https://openalex.org/W4415343146","https://openalex.org/W4408533958","https://openalex.org/W2548735814","https://openalex.org/W1860555202"],"abstract_inverted_index":{"\u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d":[0],"\u043f\u043e\u0434\u0445\u043e\u0434":[1],"\u043a":[2],"\u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044e":[3],"\u0438\u043d\u0442\u0435\u043b\u043b\u0435\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439":[4],"\u0441\u0438\u0441\u0442\u0435\u043c\u044b":[5,12,19],"\u0434\u0438\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0438":[6,43],"\u0438\u043e\u043d\u043e\u0441\u0444\u0435\u0440\u044b,":[7],"\u041a\u0412-\u0440\u0430\u0434\u0438\u043e\u043a\u0430\u043d\u0430\u043b\u0430":[8],"\u0438":[9,16,24,36,72],"\u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e":[10],"\u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f":[11],"\u041a\u0412-\u0441\u0432\u044f\u0437\u0438.":[13],"\u0420\u0430\u0437\u0432\u0438\u0442\u044b":[14],"\u043c\u0435\u0442\u043e\u0434\u0438\u043a\u0438":[15],"\u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u044b":[17],"\u0440\u0430\u0431\u043e\u0442\u044b":[18],"\u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e":[20,40],"\u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f":[21,41],"\u0437\u043e\u043d\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c":[22],"\u0438\u043e\u043d\u043e\u0441\u0444\u0435\u0440\u044b":[23],"\u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u043c":[25],"\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c":[26],"\u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430":[27],"\u0447\u0430\u0441\u0442\u043e\u0442\u043d\u044b\u0445":[28],"\u0448\u0438\u0440\u043e\u043a\u043e\u043f\u043e\u043b\u043e\u0441\u043d\u044b\u0445":[29],"\u041a\u0412-\u0440\u0430\u0434\u0438\u043e\u043a\u0430\u043d\u0430\u043b\u043e\u0432.":[30],"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d":[31],"\u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0439":[32],"\u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b":[33],"\u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e":[34],"\u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f":[35],"\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0430":[37],"\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445":[38],"\u0441\u0440\u0435\u0434\u0441\u0442\u0432":[39],"\u0441\u0438\u0441\u0442\u0435\u043c\u043e\u0439":[42],"\u043f\u0440\u0438":[44],"\u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0438":[45],"\u043e\u0431\u043b\u0430\u0441\u0442\u0438":[46],"\u0440\u0435\u0448\u0430\u0435\u043c\u044b\u0445":[47],"\u0437\u0430\u0434\u0430\u0447.":[48],"\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439":[49],"\u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e":[50],"\u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f":[51],"\u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432":[52],"\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f":[53],"\u043a\u043e\u0433\u043d\u0438\u0442\u0438\u0432\u043d\u0430\u044f":[54],"\u041a\u0412-\u0441\u0432\u044f\u0437\u044c,":[55],"\u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443":[56],"\u043e\u043d\u0430":[57],"\u0441\u043f\u043e\u0441\u043e\u0431\u0441\u0442\u0432\u0443\u0435\u0442":[58],"\u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044e":[59],"\u0431\u043e\u043b\u0435\u0435":[60],"\u0440\u0430\u0432\u043d\u043e\u043c\u0435\u0440\u043d\u043e\u0433\u043e":[61],"\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f":[62],"\u043f\u0430\u0440\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445":[63],"\u043a\u0430\u043d\u0430\u043b\u043e\u0432":[64],"\u0441\u0432\u044f\u0437\u0438,":[65],"\u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044e":[66],"\u0435\u0451":[67],"\u043f\u043e\u043c\u0435\u0445\u043e\u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u0438,":[68],"\u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044e":[69],"\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438":[70],"\u043c\u043e\u0434\u0435\u043c\u043e\u0432":[71],"\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044e":[73],"\u0438\u0437\u043b\u0443\u0447\u0430\u0435\u043c\u043e\u0439":[74],"\u043c\u043e\u0449\u043d\u043e\u0441\u0442\u0438.":[75],"Introduction.":[76],"Currently,":[77],"the":[78,85,95,110,146,150,162,165,177,186,189,196,230,246,279,288,295,302,323,345,376,393,408,412,420,431,434,444],"focus":[79],"has":[80],"significantly":[81],"moved":[82],"in":[83,139,161,226,235,301,407,436],"spreading":[84,143],"scope":[86,432],"of":[87,98,104,112,122,129,149,167,179,185,188,191,195,198,209,220,232,245,257,274,290,297,322,327,347,361,375,382,392,395,411,414,433,448,453],"noise-like":[88],"composite":[89],"wideband":[90],"signals.":[91],"Their":[92],"feature":[93],"is":[94,133,204,229,239,248,342,405,428],"simultaneous":[96,254,319],"formation":[97],"radio":[99,151,159,181,260,298,330,356,399],"pulses":[100],"on":[101,287],"a":[102,127,140,251,354,362],"grid":[103],"subcarriers.":[105],"Such":[106],"signals":[107],"belong":[108],"to":[109,176,249,344],"class":[111],"frequency":[113,163],"division":[114],"multiplexing":[115,173],"(FDM)":[116],"and":[117,144,202,270,277,282,312,325,336,358,370,398,422,461],"use":[118,208,231,413,452],"intra-pulse":[119],"phase":[120],"modulation":[121],"partials":[123,154],"(PSK),":[124],"which":[125,137,238],"carry":[126],"bit":[128],"information.":[130],"The":[131,206,243,304,340,401,425],"data":[132,200,268,334,423],"coded":[134],"by":[135,171,310,430],"chips,":[136],"results":[138,284],"direct":[141],"spectrum":[142],"improves":[145],"noise":[147,457],"resistance":[148],"system.":[152,365],"Since":[153],"with":[155,266,332],"different":[156,380],"carriers":[157],"occupy":[158],"channels":[160,261,331],"domain,":[164],"problem":[166],"their":[168],"close":[169],"spacing":[170],"orthogonal":[172],"also":[174],"applies":[175],"analysis":[178,203,337],"overlapping":[180],"channels.":[182,400],"A":[183,316],"requirement":[184],"application":[187],"technology":[190,418],"client-server":[192,415],"remote":[193,267,333,373,390,416],"control":[194,374,391,417],"system":[197,351,378,394,421],"test":[199],"diagnosis":[201],"topical.":[205],"widespread":[207],"mobile":[210,233],"devices":[211],"opens":[212],"up":[213],"new":[214],"perspectives":[215],"for":[216,253,318,352,372,379,389,403,419,442],"solving":[217,443],"topical":[218,446],"problems":[219,447],"HF":[221,259,329,355,363,439],"communications.":[222],"An":[223],"important":[224],"trend":[225],"this":[227],"process":[228],"applications":[234],"experimental":[236],"research,":[237],"almost":[240],"not":[241],"developed.":[242,339],"aim":[244],"research":[247,281],"develop":[250],"method":[252,317,435],"multi-carrier":[255,320],"testing":[256,326],"ionospheric":[258],"over":[262],"NVIS":[263],"communication":[264,364,440],"links":[265],"processing":[269,335],"analysis.":[271],"Methods.The":[272],"solution":[273],"posed":[275],"tasks":[276],"obtaining":[278],"main":[280,305],"practical":[283,426],"are":[285],"based":[286],"methods":[289,369],"mathematical":[291],"analysis,":[292],"computational":[293],"mathematics,":[294],"theory":[296],"wave":[299],"propagation":[300],"ionosphere.":[303],"theoretical":[306],"outcomes":[307],"were":[308,367],"verified":[309],"numerical":[311],"full-scale":[313],"experiments.":[314],"Findings.":[315],"sounding":[321,377],"ionosphere":[324,397],"multiple":[328],"was":[338],"task":[341],"related":[343],"approach":[346,410],"creating":[348],"an":[349,450],"intelligent":[350],"diagnosing":[353,396],"channel":[357],"machine":[359],"learning":[360],"There":[366],"developed:":[368],"algorithms":[371],"area":[381],"tasks;":[383],"network":[384],"interaction":[385],"protocol,":[386],"software":[387],"architecture":[388],"significance":[402,427],"science":[404],"manifested":[406],"developed":[409],"processing.":[424],"defined":[429],"state-of-the-art":[437],"cognitive":[438],"systems":[441],"currently":[445],"ensuring":[449],"equal":[451],"partial":[454],"channels,":[455],"increasing":[456],"resistance,":[458],"modem":[459],"performance":[460],"reducing":[462],"radiated":[463],"power.":[464]},"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2026-10-13T10:08:12.033832","created_date":"2025-02-15T00:00:00"}
