{"title":"每小时散射信号中位数与简单折射参数的相关性","authors":"A. Dennis","doi":"10.6028/JRES.066D.032","DOIUrl":null,"url":null,"abstract":"Measured signals on two t ropospheri c scatter links have bee n analyzed in t he liO\"ht of radio refractivity profiles prepared from radiosonde data. On the shorter link (San DiegoSanta Ana, 85 miles) t he basic transmission loss was found to be approximately a li nea r fun ct ion of f1N, t he change in radio refractivity from the gro und to a height of 1 ki lometer. On the longer (Cape CanaveralNew Providence I sla nd , Baha mas, 300 miles) t he relationship between transmission loss a nd f1N was nonlinear , and better results were obtained by averaging the refractivity gradi ent over 5,000 fee t . Correlation coefficients on t he San DiegoSanta Ana link range from 0.39 in August to 0.84 in February. On the Cape CanaveralN ew Providence link the co rrelation factor is 0.92. The results show the feasibility of forecasting signal-to-noise ratios on over-water t ropospheri c scatter co mmunications syst ems on a daily or hourly basis.","PeriodicalId":398550,"journal":{"name":"Journal of Research of the National Bureau of Standards, Section D: Radio Propagation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1962-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Correlation between hourly median scattered signals and simple refractivity parameters\",\"authors\":\"A. Dennis\",\"doi\":\"10.6028/JRES.066D.032\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Measured signals on two t ropospheri c scatter links have bee n analyzed in t he liO\\\"ht of radio refractivity profiles prepared from radiosonde data. On the shorter link (San DiegoSanta Ana, 85 miles) t he basic transmission loss was found to be approximately a li nea r fun ct ion of f1N, t he change in radio refractivity from the gro und to a height of 1 ki lometer. On the longer (Cape CanaveralNew Providence I sla nd , Baha mas, 300 miles) t he relationship between transmission loss a nd f1N was nonlinear , and better results were obtained by averaging the refractivity gradi ent over 5,000 fee t . Correlation coefficients on t he San DiegoSanta Ana link range from 0.39 in August to 0.84 in February. On the Cape CanaveralN ew Providence link the co rrelation factor is 0.92. The results show the feasibility of forecasting signal-to-noise ratios on over-water t ropospheri c scatter co mmunications syst ems on a daily or hourly basis.\",\"PeriodicalId\":398550,\"journal\":{\"name\":\"Journal of Research of the National Bureau of Standards, Section D: Radio Propagation\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1962-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Research of the National Bureau of Standards, Section D: Radio Propagation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.6028/JRES.066D.032\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Research of the National Bureau of Standards, Section D: Radio Propagation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.6028/JRES.066D.032","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Correlation between hourly median scattered signals and simple refractivity parameters
Measured signals on two t ropospheri c scatter links have bee n analyzed in t he liO"ht of radio refractivity profiles prepared from radiosonde data. On the shorter link (San DiegoSanta Ana, 85 miles) t he basic transmission loss was found to be approximately a li nea r fun ct ion of f1N, t he change in radio refractivity from the gro und to a height of 1 ki lometer. On the longer (Cape CanaveralNew Providence I sla nd , Baha mas, 300 miles) t he relationship between transmission loss a nd f1N was nonlinear , and better results were obtained by averaging the refractivity gradi ent over 5,000 fee t . Correlation coefficients on t he San DiegoSanta Ana link range from 0.39 in August to 0.84 in February. On the Cape CanaveralN ew Providence link the co rrelation factor is 0.92. The results show the feasibility of forecasting signal-to-noise ratios on over-water t ropospheri c scatter co mmunications syst ems on a daily or hourly basis.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
