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| {"documenter":{"julia_version":"1.6.7","generation_timestamp":"2023-12-31T11:57:14","documenter_version":"1.2.1"}} |
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| <!DOCTYPE html> | ||
| <html lang="en"><head><meta charset="UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><title>Atmostpheric Attenuation · RadioPropagation.jl</title><meta name="title" content="Atmostpheric Attenuation · RadioPropagation.jl"/><meta property="og:title" content="Atmostpheric Attenuation · RadioPropagation.jl"/><meta property="twitter:title" content="Atmostpheric Attenuation · RadioPropagation.jl"/><meta name="description" content="Documentation for RadioPropagation.jl."/><meta property="og:description" content="Documentation for RadioPropagation.jl."/><meta property="twitter:description" content="Documentation for RadioPropagation.jl."/><script data-outdated-warner src="../../assets/warner.js"></script><link href="https://cdnjs.cloudflare.com/ajax/libs/lato-font/3.0.0/css/lato-font.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/juliamono/0.050/juliamono.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/fontawesome.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/solid.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/brands.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.8/katex.min.css" rel="stylesheet" type="text/css"/><script>documenterBaseURL="../.."</script><script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.min.js" data-main="../../assets/documenter.js"></script><script src="../../search_index.js"></script><script src="../../siteinfo.js"></script><script src="../../../versions.js"></script><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/documenter-dark.css" data-theme-name="documenter-dark" data-theme-primary-dark/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/documenter-light.css" data-theme-name="documenter-light" data-theme-primary/><script src="../../assets/themeswap.js"></script></head><body><div id="documenter"><nav class="docs-sidebar"><div class="docs-package-name"><span class="docs-autofit"><a href="../../">RadioPropagation.jl</a></span></div><button class="docs-search-query input is-rounded is-small is-clickable my-2 mx-auto py-1 px-2" id="documenter-search-query">Search docs (Ctrl + /)</button><ul class="docs-menu"><li><a class="tocitem" href="../../">RadioPropagation.jl Documentation</a></li><li><span class="tocitem">Examples</span><ul><li class="is-active"><a class="tocitem" href>Atmostpheric Attenuation</a><ul class="internal"><li><a class="tocitem" href="#References"><span>References</span></a></li></ul></li><li><a class="tocitem" href="../two-ray_propagation/">Two-Ray Propagation</a></li></ul></li></ul><div class="docs-version-selector field has-addons"><div class="control"><span class="docs-label button is-static is-size-7">Version</span></div><div class="docs-selector control is-expanded"><div class="select is-fullwidth is-size-7"><select id="documenter-version-selector"></select></div></div></div></nav><div class="docs-main"><header class="docs-navbar"><a class="docs-sidebar-button docs-navbar-link fa-solid fa-bars is-hidden-desktop" id="documenter-sidebar-button" href="#"></a><nav class="breadcrumb"><ul class="is-hidden-mobile"><li><a class="is-disabled">Examples</a></li><li class="is-active"><a href>Atmostpheric Attenuation</a></li></ul><ul class="is-hidden-tablet"><li class="is-active"><a href>Atmostpheric Attenuation</a></li></ul></nav><div class="docs-right"><a class="docs-navbar-link" href="https://github.com/ErikBuer/RadioPropagation.jl" title="View the repository on GitHub"><span class="docs-icon fa-brands"></span><span class="docs-label is-hidden-touch">GitHub</span></a><a class="docs-navbar-link" href="https://github.com/ErikBuer/RadioPropagation.jl/blob/main/docs/src/Examples/atmospheric_attenuation.md" title="Edit source on GitHub"><span class="docs-icon fa-solid"></span></a><a class="docs-settings-button docs-navbar-link fa-solid fa-gear" id="documenter-settings-button" href="#" title="Settings"></a><a class="docs-article-toggle-button fa-solid fa-chevron-up" id="documenter-article-toggle-button" href="javascript:;" title="Collapse all docstrings"></a></div></header><article class="content" id="documenter-page"><h1 id="Atmostpheric-Attenuation"><a class="docs-heading-anchor" href="#Atmostpheric-Attenuation">Atmostpheric Attenuation</a><a id="Atmostpheric-Attenuation-1"></a><a class="docs-heading-anchor-permalink" href="#Atmostpheric-Attenuation" title="Permalink"></a></h1><p>Lets recreate the classic atmospheric attenuation figure from [1].</p><pre><code class="language-julia hljs">using ..RadioPropagation | ||
| using Plots | ||
|
|
||
| frequency_ghz = collect(1:600); | ||
|
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||
|
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| attenuation_db_km = RadioPropagation.atmospheric_attenuation_db_per_km.( frequency_ghz ); | ||
|
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| plot( | ||
| frequency_ghz, attenuation_db_km, | ||
| xlabel = "Frequency [GHz]", | ||
| ylabel = "One-way loss [dB/km]", | ||
| title = "Atmospheric Attenuation.", | ||
| label = "Standard", | ||
| yaxis=:log, | ||
| dpi=300 | ||
| ) | ||
|
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||
|
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| attenuation_db_km = RadioPropagation.atmospheric_attenuation_db_per_km.( frequency_ghz, 288.15, 0 ); | ||
|
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| plot!( frequency_ghz, attenuation_db_km, | ||
| label = "Dry air", | ||
| yaxis=:log, | ||
| )</code></pre><pre class="documenter-example-output"><code class="nohighlight hljs ansi">qt.qpa.xcb: could not connect to display | ||
| qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin. | ||
| qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. | ||
| This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. | ||
|
|
||
| Available platform plugins are: vkkhrdisplay, linuxfb, offscreen, vnc, xcb, minimal, minimalegl, eglfs. | ||
|
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||
| Aborted (core dumped) | ||
| connect: Connection refused | ||
| GKS: can't connect to GKS socket application | ||
|
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||
| GKS: Open failed in routine OPEN_WS | ||
| GKS: GKS not in proper state. GKS must be either in the state WSOP or WSAC in routine ACTIVATE_WS</code></pre><p><img src="../attenuation_example.svg" alt="Atmostpheric attenuation image"/></p><h2 id="References"><a class="docs-heading-anchor" href="#References">References</a><a id="References-1"></a><a class="docs-heading-anchor-permalink" href="#References" title="Permalink"></a></h2><p>[1] Rec. ITU-R P.676-12, Attenuation by atmospheric gases and related effects, ITU-R 2020.</p></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../../">« RadioPropagation.jl Documentation</a><a class="docs-footer-nextpage" href="../two-ray_propagation/">Two-Ray Propagation »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option><option value="auto">Automatic (OS)</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 1.2.1 on <span class="colophon-date" title="Sunday 31 December 2023 11:57">Sunday 31 December 2023</span>. Using Julia version 1.6.7.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html> |
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| <html lang="en"><head><meta charset="UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><title>Two-Ray Propagation · RadioPropagation.jl</title><meta name="title" content="Two-Ray Propagation · RadioPropagation.jl"/><meta property="og:title" content="Two-Ray Propagation · RadioPropagation.jl"/><meta property="twitter:title" content="Two-Ray Propagation · RadioPropagation.jl"/><meta name="description" content="Documentation for RadioPropagation.jl."/><meta property="og:description" content="Documentation for RadioPropagation.jl."/><meta property="twitter:description" content="Documentation for RadioPropagation.jl."/><script data-outdated-warner src="../../assets/warner.js"></script><link href="https://cdnjs.cloudflare.com/ajax/libs/lato-font/3.0.0/css/lato-font.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/juliamono/0.050/juliamono.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/fontawesome.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/solid.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/brands.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.8/katex.min.css" rel="stylesheet" type="text/css"/><script>documenterBaseURL="../.."</script><script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.min.js" data-main="../../assets/documenter.js"></script><script src="../../search_index.js"></script><script src="../../siteinfo.js"></script><script src="../../../versions.js"></script><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/documenter-dark.css" data-theme-name="documenter-dark" data-theme-primary-dark/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/documenter-light.css" data-theme-name="documenter-light" data-theme-primary/><script src="../../assets/themeswap.js"></script></head><body><div id="documenter"><nav class="docs-sidebar"><div class="docs-package-name"><span class="docs-autofit"><a href="../../">RadioPropagation.jl</a></span></div><button class="docs-search-query input is-rounded is-small is-clickable my-2 mx-auto py-1 px-2" id="documenter-search-query">Search docs (Ctrl + /)</button><ul class="docs-menu"><li><a class="tocitem" href="../../">RadioPropagation.jl Documentation</a></li><li><span class="tocitem">Examples</span><ul><li><a class="tocitem" href="../atmospheric_attenuation/">Atmostpheric Attenuation</a></li><li class="is-active"><a class="tocitem" href>Two-Ray Propagation</a></li></ul></li></ul><div class="docs-version-selector field has-addons"><div class="control"><span class="docs-label button is-static is-size-7">Version</span></div><div class="docs-selector control is-expanded"><div class="select is-fullwidth is-size-7"><select id="documenter-version-selector"></select></div></div></div></nav><div class="docs-main"><header class="docs-navbar"><a class="docs-sidebar-button docs-navbar-link fa-solid fa-bars is-hidden-desktop" id="documenter-sidebar-button" href="#"></a><nav class="breadcrumb"><ul class="is-hidden-mobile"><li><a class="is-disabled">Examples</a></li><li class="is-active"><a href>Two-Ray Propagation</a></li></ul><ul class="is-hidden-tablet"><li class="is-active"><a href>Two-Ray Propagation</a></li></ul></nav><div class="docs-right"><a class="docs-navbar-link" href="https://github.com/ErikBuer/RadioPropagation.jl" title="View the repository on GitHub"><span class="docs-icon fa-brands"></span><span class="docs-label is-hidden-touch">GitHub</span></a><a class="docs-navbar-link" href="https://github.com/ErikBuer/RadioPropagation.jl/blob/main/docs/src/Examples/two-ray_propagation.md" title="Edit source on GitHub"><span class="docs-icon fa-solid"></span></a><a class="docs-settings-button docs-navbar-link fa-solid fa-gear" id="documenter-settings-button" href="#" title="Settings"></a><a class="docs-article-toggle-button fa-solid fa-chevron-up" id="documenter-article-toggle-button" href="javascript:;" title="Collapse all docstrings"></a></div></header><article class="content" id="documenter-page"><h1 id="Two-Ray-Propagation"><a class="docs-heading-anchor" href="#Two-Ray-Propagation">Two-Ray Propagation</a><a id="Two-Ray-Propagation-1"></a><a class="docs-heading-anchor-permalink" href="#Two-Ray-Propagation" title="Permalink"></a></h1><p>This example plots signal strength as function of range, compared to free space power spread.</p><pre><code class="language-julia hljs">using ..RadioPropagation | ||
| using Plots | ||
|
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| c = 3e8; | ||
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| transmit_height_m = 2; | ||
| receive_height_m = 10; | ||
| target_range_m = LinRange(20, 100, 10000); | ||
| transmit_frequency_hz = 3e9; | ||
| λ = c/transmit_frequency_hz; | ||
| Γ1 = -1; | ||
| Γ2 = -0.6; | ||
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| F²( Γ ) = RadioPropagation.two_ray_propagation.( target_range_m, transmit_height_m, receive_height_m, transmit_frequency_hz, Γ ); | ||
|
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| F²1 = F²( Γ1 ); | ||
| F²2 = F²( Γ2 ); | ||
|
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| f⁴_db( F² ) = 10*log10.( abs2.( F² )); | ||
|
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| freespace_loss_db = 10 .*log10.(λ^2 ./( (4*π)^3 .*target_range_m .^4 )); | ||
| bias = freespace_loss_db[1] | ||
|
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| plot1 = plot( target_range_m, f⁴_db.(F²1)+freespace_loss_db .-bias, | ||
| xlabel = "Range (one-way) [m]", | ||
| ylabel = "Two-way loss [dB]", | ||
| title = "Free-space versus two-ray propagation.", | ||
| ylims = (-30, 6), | ||
| label = "|F|⁴+L, Γ=-1", | ||
| legend = true, | ||
| xaxis =:log, | ||
| dpi=300) | ||
| plot!( target_range_m, f⁴_db.(F²2)+freespace_loss_db .-bias, | ||
| label = "|F|⁴+L, Γ=-0.6", | ||
| xaxis =:log ) | ||
| plot!( target_range_m, freespace_loss_db .-bias, | ||
| label = "L", | ||
| xaxis =:log )</code></pre><pre class="documenter-example-output"><code class="nohighlight hljs ansi">qt.qpa.xcb: could not connect to display | ||
| qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin. | ||
| qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. | ||
| This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. | ||
|
|
||
| Available platform plugins are: vkkhrdisplay, linuxfb, offscreen, vnc, xcb, minimal, minimalegl, eglfs. | ||
|
|
||
| Aborted (core dumped) | ||
| connect: Connection refused | ||
| GKS: can't connect to GKS socket application | ||
|
|
||
| GKS: Open failed in routine OPEN_WS | ||
| GKS: GKS not in proper state. GKS must be either in the state WSOP or WSAC in routine ACTIVATE_WS</code></pre><p><img src="../two-tay-propagation.svg" alt="Two-ray propagation"/></p></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../atmospheric_attenuation/">« Atmostpheric Attenuation</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option><option value="auto">Automatic (OS)</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 1.2.1 on <span class="colophon-date" title="Sunday 31 December 2023 11:57">Sunday 31 December 2023</span>. Using Julia version 1.6.7.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html> |
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