{"id":1751,"date":"2018-02-21T04:58:58","date_gmt":"2018-02-21T09:58:58","guid":{"rendered":"http:\/\/blog.espol.edu.ec\/estg1003\/?p=1751"},"modified":"2026-03-03T21:29:01","modified_gmt":"2026-03-04T02:29:01","slug":"3eva2017tii_t4-sxf-para-qam","status":"publish","type":"post","link":"https:\/\/blog.espol.edu.ec\/algoritmos101\/stp-3eva\/3eva2017tii_t4-sxf-para-qam\/","title":{"rendered":"3Eva2017TII_T4 Sx(f) para QAM"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">3ra Evaluaci\u00f3n II T\u00e9rmino 2017-2018.\u00a0 Febrero 20, 2018<\/h2>\n\n\n\n<p><strong>Tema 4<\/strong>. (25 puntos) La se\u00f1al de entrada X(t) de un sistema tipo \u201cQAM\u201d son procesos aleatorios A(t) y B(t) independientes con densidades espectrales de potencia mostradas.<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>X<\/strong>(t) = <strong>A<\/strong>(t) cos(2\u03c0f<sub>c<\/sub>t + <strong>\u03b8<\/strong>) + <strong>B<\/strong>(t) sin(2\u03c0f<sub>c<\/sub>t + <strong>\u03b8<\/strong>)<\/p>\n\n\n\n<p>a) Encuentre la densidad espectral de potencia de la se\u00f1al QAM, S<sub>X<\/sub>(f)<\/p>\n\n\n\n<p>b) Grafique su respuesta<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><a href=\"http:\/\/blog.espol.edu.ec\/algoritmos101\/files\/2018\/02\/QAM_01.png\"><img loading=\"lazy\" decoding=\"async\" width=\"375\" height=\"206\" src=\"http:\/\/blog.espol.edu.ec\/algoritmos101\/files\/2018\/02\/QAM_01.png\" alt=\"\" class=\"wp-image-1752\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"http:\/\/blog.espol.edu.ec\/algoritmos101\/files\/2018\/02\/SAf_SBf_01.png\"><img loading=\"lazy\" decoding=\"async\" width=\"539\" height=\"150\" src=\"http:\/\/blog.espol.edu.ec\/algoritmos101\/files\/2018\/02\/SAf_SBf_01.png\" alt=\"\" class=\"wp-image-1753\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><br><\/p>\n\n\n\n<p>&nbsp;<\/p>\n\n\n\n<p><strong><em>R\u00fabrica<\/em><\/strong><em>: literal a (15 puntos), literal b (10 puntos)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>3ra Evaluaci\u00f3n II T\u00e9rmino 2017-2018.\u00a0 Febrero 20, 2018 Tema 4. (25 puntos) La se\u00f1al de entrada X(t) de un sistema tipo \u201cQAM\u201d son procesos aleatorios A(t) y B(t) independientes con densidades espectrales de potencia mostradas. X(t) = A(t) cos(2\u03c0fct + \u03b8) + B(t) sin(2\u03c0fct + \u03b8) a) Encuentre la densidad espectral de potencia de la [&hellip;]<\/p>\n","protected":false},"author":8043,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"wp-custom-template-entrada-stp-ejercicios","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[],"class_list":["post-1751","post","type-post","status-publish","format-standard","hentry","category-stp-3eva"],"_links":{"self":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/1751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/users\/8043"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/comments?post=1751"}],"version-history":[{"count":3,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/1751\/revisions"}],"predecessor-version":[{"id":22664,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/1751\/revisions\/22664"}],"wp:attachment":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/media?parent=1751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/categories?post=1751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/tags?post=1751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}