{"id":5085,"date":"2025-09-12T00:00:00","date_gmt":"2025-09-12T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/what-you-should-know-about-qpsk-modulation-basics-advantages\/"},"modified":"2026-06-22T07:21:00","modified_gmt":"2026-06-22T07:21:00","slug":"what-you-should-know-about-qpsk-modulation-basics-advantages","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/what-you-should-know-about-qpsk-modulation-basics-advantages","title":{"rendered":"QPSK\u5909\u8abf\u306b\u3064\u3044\u3066\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u3053\u3068"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/58746f50c6254f5c859cafce06230d66.webp\" alt=\"What You Should Know About QPSK Modulation\" class=\"wp-image-5083\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/58746f50c6254f5c859cafce06230d66.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/58746f50c6254f5c859cafce06230d66-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/58746f50c6254f5c859cafce06230d66-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/58746f50c6254f5c859cafce06230d66-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/58746f50c6254f5c859cafce06230d66-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u7121\u7dda\u901a\u4fe1\u304a\u3088\u3073\u9ad8\u901f\u30c7\u30fc\u30bf\u4f1d\u9001\u3068\u3044\u3046\u76ee\u306b\u898b\u3048\u306a\u3044\u4ea4\u97ff\u66f2\u306b\u304a\u3044\u3066\u3001\u3059\u3079\u3066\u306e\u30d3\u30c3\u30c8\u30c7\u30fc\u30bf\u306b\u306f\u660e\u78ba\u3067\u52b9\u7387\u7684\u306a\u300c\u58f0\u300d\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u3046\u3057\u305f\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u306e\u4e2d\u3067\u3082\u3001, <strong>QPSK\u5909\u8abf<\/strong> \u306f\u3001\u57fa\u672c\u7684\u304b\u3064\u9a5a\u304f\u307b\u3069\u8010\u969c\u5bb3\u6027\u306e\u9ad8\u3044\u6307\u63ee\u8005\u3068\u3057\u3066\u4f4d\u7f6e\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002\u52d5\u753b\u3092\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3057\u3066\u3044\u308b\u3068\u304d\u3001GPS\u4fe1\u53f7\u3092\u53d7\u4fe1\u3057\u3066\u3044\u308b\u3068\u304d\u3001\u3042\u308b\u3044\u306f\u30a6\u30a7\u30d6\u3092\u95b2\u89a7\u3057\u3066\u3044\u308b\u3068\u304d\u3067\u3082\u3001QPSK\u306f\u304a\u305d\u3089\u304f\u305d\u306e\u80cc\u666f\u3067\u6975\u3081\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u7a3f\u3067\u306f\u3001 <strong>QPSK\u3068\u306f\u4f55\u304b<\/strong>, \u3001\u305d\u306e\u52d5\u4f5c\u539f\u7406\u3001\u305d\u3057\u3066\u306a\u305c\u73fe\u4ee3\u306e\u30c7\u30b8\u30bf\u30eb\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u4f9d\u7136\u3068\u3057\u3066\u57fa\u5e79\u6280\u8853\u3067\u3042\u308a\u7d9a\u3051\u3066\u3044\u308b\u306e\u304b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 \u4e3b\u306a\u30dd\u30a4\u30f3\u30c8<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>QPSK<\/strong> \u306f <strong>\u76f4\u4ea4\u4f4d\u76f8\u30b7\u30d5\u30c8\u30ad\u30fc\u30a4\u30f3\u30b0\uff08Quadrature Phase Shift Keying\uff09<\/strong>. \u3002\u3053\u308c\u306f\u3001\u4fe1\u53f7\u306e\u4f4d\u76f8\u3092\u5909\u5316\u3055\u305b\u308b\u3053\u3068\u3067\u30c7\u30b8\u30bf\u30eb\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u3092\u3088\u308a\u9ad8\u901f\u304b\u3064\u52b9\u7387\u7684\u306b\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002.<\/p><\/li><li><p>\u3053\u306e\u5909\u8abf\u65b9\u5f0f\u3067\u306f\u30011\u30b7\u30f3\u30dc\u30eb\u3042\u305f\u308a2\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001BPSK\u306a\u3069\u306e\u5f93\u6765\u65b9\u5f0f\u3068\u6bd4\u8f03\u3057\u3066\u30c7\u30fc\u30bf\u30ec\u30fc\u30c8\u304c2\u500d\u306b\u306a\u308a\u307e\u3059\u3002.<\/p><\/li><li><p>QPSK\u306f\u96d1\u97f3\u304c\u5b58\u5728\u3059\u308b\u74b0\u5883\u4e0b\u3067\u3082\u826f\u597d\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u643a\u5e2f\u96fb\u8a71\u3001Wi-Fi\u3001\u885b\u661f\u901a\u4fe1\u306a\u3069\u3001\u7121\u7dda\u901a\u4fe1\u306b\u6700\u9069\u3067\u3059\u3002.<\/p><\/li><li><p>QPSK\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u5e2f\u57df\u5e45\u3092\u7bc0\u7d04\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u4e00\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u5185\u306b\u3055\u3089\u306b\u591a\u304f\u306e\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u53ef\u80fd\u3068\u306a\u308a\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u901f\u5ea6\u306e\u5411\u4e0a\u3084\u901a\u8a71\u54c1\u8cea\u306e\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002.<\/p><\/li><li><p>QPSK\u306b\u95a2\u3059\u308b\u77e5\u8b58\u306f\u3001\u9069\u5207\u306a\u6280\u8853\u9078\u629e\u3092\u652f\u63f4\u3057\u307e\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u901a\u4fe1\u306b\u304a\u3044\u3066\u3001\u901f\u5ea6\u3068\u4fe1\u983c\u6027\u306e\u3069\u3061\u3089\u3092\u512a\u5148\u3059\u308b\u304b\u3092\u5224\u65ad\u3059\u308b\u969b\u306e\u6307\u91dd\u3068\u306a\u308a\u307e\u3059\u3002.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 QPSK\u5909\u8abf\u3068\u306f\uff1f<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QPSK\u3001\u3059\u306a\u308f\u3061 <strong>\u76f4\u4ea4\u4f4d\u76f8\u30b7\u30d5\u30c8\u30ad\u30fc\u30a4\u30f3\u30b0\uff08Quadrature Phase Shift Keying\uff09<\/strong>, \u306f\u3001\u7121\u7dda\u6ce2\u3001\u540c\u8ef8\u30b1\u30fc\u30d6\u30eb\u3001\u304a\u3088\u3073 <strong>\u5149\u30d5\u30a1\u30a4\u30d0\u30ea\u30f3\u30af<\/strong>. \u3092\u901a\u3058\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u308b\u30c7\u30b8\u30bf\u30eb\u5909\u8abf\u65b9\u5f0f\u3067\u3059\u3002\u3053\u308c\u306f\u3001 <strong>\u4f4d\u76f8\u30b7\u30d5\u30c8\u30fb\u30ad\u30fc\u30ea\u30f3\u30b0\uff08PSK\uff09<\/strong> \u53c2\u7167\u4fe1\u53f7\uff08\u30ad\u30e3\u30ea\u30a2\u6ce2\uff09\u306e\u4f4d\u76f8\u3092\u5909\u5316\uff08\u5909\u8abf\uff09\u3055\u305b\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u4f1d\u9001\u3059\u308b\u3001.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u76f4\u4ea4\uff08Quadrature\uff09\u300d\u3068\u3044\u3046\u540d\u79f0\u306f\u3001\u4f4d\u76f8\u304c90\u5ea6\u305a\u308c\u305f2\u3064\u306e\u30ad\u30e3\u30ea\u30a2\u6ce2\uff08\u6b63\u5f26\u6ce2\uff1aI\uff08In-phase\uff09\u6210\u5206\u3001\u4f59\u5f26\u6ce2\uff1aQ\uff08Quadrature\uff09\u6210\u5206\uff09\u3092\u7528\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u306e2\u3064\u306e\u76f4\u4ea4\u30ad\u30e3\u30ea\u30a2\u3092\u5de7\u307f\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3001\u305d\u306e\u9ad8\u52b9\u7387\u6027\u306e\u9375\u3067\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 QPSK\u306e\u52d5\u4f5c\u539f\u7406\uff1a4\u3064\u306e\u4f4d\u76f8\u306b\u3088\u308b\u9b54\u6cd5<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"580\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0a5e1ce503e84c398d7b47a51ad6352f.webp\" alt=\"Quadrature Phase Shift Keying\" class=\"wp-image-5084\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0a5e1ce503e84c398d7b47a51ad6352f.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0a5e1ce503e84c398d7b47a51ad6352f-300x145.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0a5e1ce503e84c398d7b47a51ad6352f-1024x495.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0a5e1ce503e84c398d7b47a51ad6352f-768x371.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0a5e1ce503e84c398d7b47a51ad6352f-18x9.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u308a\u5358\u7d14\u306a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/bpsk-modulation-basics-how-bpsk-works-in-digital-communication\/\"><strong>BPSK<\/strong><\/a> \uff081\u30b7\u30f3\u30dc\u30eb\u3042\u305f\u308a1\u30d3\u30c3\u30c8\u3092\u8868\u3059\u305f\u3081\u306b2\u3064\u306e\u4f4d\u76f8\u3092\u7528\u3044\u308b\u65b9\u5f0f\uff09\u3068\u306f\u7570\u306a\u308a\u3001QPSK\u306f4\u3064\u306e\u7570\u306a\u308b\u4f4d\u76f8\u5909\u5316\u3092\u7528\u3044\u3066\u30c7\u30fc\u30bf\u3092\u8868\u73fe\u3057\u307e\u3059\u3002\u5404\u3005\u306e\u56fa\u6709\u306e\u4f4d\u76f8\u5909\u5316\u306f\u3001\u56fa\u6709\u306e2\u30d3\u30c3\u30c8\u30b7\u30f3\u30dc\u30eb\u3092\u7b26\u53f7\u5316\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The four standard phase shifts are: 45\u00b0, 135\u00b0, 225\u00b0, and 315\u00b0. Each of these phases corresponds to one of four possible two-bit combinations:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u4f4d\u76f8\u30b7\u30d5\u30c8\uff08\u5ea6\uff09<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u30c0\u30a4\u30d3\u30c3\u30c8\uff08I, Q\uff09<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u30b7\u30f3\u30dc\u30eb<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>45\u00b0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(0, 0)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>00<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>135\u00b0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(0, 1)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>01<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>225\u00b0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(1, 1)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>11<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>315\u00b0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(1, 0)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u3001\u5404\u30b7\u30f3\u30dc\u30eb\u306e\u9001\u4fe1\u3054\u3068\u306bQPSK\u304c <strong>two bits<\/strong> \u306e\u60c5\u5831\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001 <strong>\u540c\u3058\u5e2f\u57df\u5e45\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u30ec\u30fc\u30c8\u304c2\u500d\u306b<\/strong> \u306a\u308a\u3001\u975e\u5e38\u306b <strong>\u5468\u6ce2\u6570\u5229\u7528\u52b9\u7387\u306e\u9ad8\u3044<\/strong> \u5909\u8abf\u65b9\u5f0f\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>QPSK\u306e\u4e3b\u306a\u5229\u70b9\uff1a\u4eba\u6c17\u306e\u7406\u7531<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>\u5e2f\u57df\u5e45\u52b9\u7387\uff1a<\/strong> \u4e0a\u8a18\u306e\u3088\u3046\u306b\u30011\u30b7\u30f3\u30dc\u30eb\u3042\u305f\u308a2\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3067\u304d\u308b\u80fd\u529b\u306b\u3088\u308a\u3001BPSK\u3068\u6bd4\u8f03\u3057\u30662\u500d\u306e\u52b9\u7387\u3092\u5b9f\u73fe\u3057\u3001\u6df7\u96d1\u3057\u305f\u5468\u6ce2\u6570\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u74b0\u5883\u306b\u304a\u3044\u3066\u6975\u3081\u3066\u91cd\u8981\u306a\u8981\u7d20\u3068\u306a\u308a\u307e\u3059\u3002.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u9811\u5065\u6027\uff1a<\/strong> QPSK\u306f\u3001\u9ad8\u6b21\u5909\u8abf\u65b9\u5f0f\uff08\u4f8b\uff1a64-QAM\uff09\u3068\u6bd4\u8f03\u3057\u3066\u3001\u4fe1\u53f7\u52a3\u5316\u304a\u3088\u3073\u30ce\u30a4\u30ba\u306b\u5bfe\u3057\u3066\u6bd4\u8f03\u7684\u8010\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001 <strong>\u9577\u8ddd\u96e2\u901a\u4fe1<\/strong> \u3084\u4f4e\u4fe1\u53f7\u5f37\u5ea6\u306e\u72b6\u6cc1\u306b\u6700\u9069\u3067\u3059\u3002.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u5358\u7d14\u6027\uff1a<\/strong> \u305d\u306e\u5b9f\u88c5\u306f\u9ad8\u6b21\u5909\u8abf\u65b9\u5f0f\u3088\u308a\u3082\u8907\u96d1\u3055\u304c\u4f4e\u304f\u3001\u3088\u308a\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u30b3\u30b9\u30c8\u52b9\u7387\u306e\u826f\u3044\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 QPSK\u306f\u3069\u3053\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u304b\uff1f \u4e3b\u306a\u5fdc\u7528\u5206\u91ce<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QPSK\u306f\u5358\u306a\u308b\u7406\u8ad6\u7684\u6982\u5ff5\u3067\u306f\u306a\u304f\u3001\u591a\u6570\u306e\u5b9f\u4e16\u754c\u6280\u8853\u3067\u5b9f\u969b\u306b\u5e83\u304f\u6d3b\u7528\u3055\u308c\u3066\u3044\u308b\u4e3b\u529b\u306e\u5909\u8abf\u65b9\u5f0f\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>\u885b\u661f\u901a\u4fe1\uff1a<\/strong> \u885b\u661f\u304b\u3089\u306e\u30c0\u30a6\u30f3\u30ea\u30f3\u30af\u30c7\u30fc\u30bf\uff08\u4f8b\uff1aGPS\u4fe1\u53f7\u3001DVB-S2\u306a\u3069\u306e\u885b\u661f\u30c6\u30ec\u30d3\uff09\u3067\u306f\u3001\u9577\u8ddd\u96e2\u306b\u308f\u305f\u308b\u30ce\u30a4\u30ba\u8010\u6027\u306e\u9ad8\u3055\u304b\u3089\u3001\u3057\u3070\u3057\u3070QPSK\u304c\u63a1\u7528\u3055\u308c\u307e\u3059\u3002.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff1a<\/strong> Wi-Fi\u898f\u683c\uff08802.11\uff09\u304a\u3088\u3073\u30bb\u30eb\u30e9\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08CDMA\u3001LTE\u3001\u305d\u3057\u3066\u73fe\u5728\u306e5G\u306e\u5236\u5fa1\u30c1\u30e3\u30cd\u30eb\uff09\u306b\u304a\u3044\u3066\u3001QPSK\u306f\u57fa\u76e4\u3068\u306a\u308b\u5909\u8abf\u65b9\u5f0f\u3067\u3059\u3002.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u5149\u30d5\u30a1\u30a4\u30d0\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong> \u76f8\u95a2\u5149\u901a\u4fe1\u3067\u306f\u3001 <strong>DP-QPSK\uff08\u30c7\u30e5\u30a2\u30eb\u30fb\u30dd\u30e9\u30ea\u30bc\u30fc\u30b7\u30e7\u30f3QPSK\uff09<\/strong> \u306e\u3088\u3046\u306a\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u3001\u73fe\u4ee3\u306e <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\"><strong>100G\u4ee5\u4e0a\u306e\u5149\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0<\/strong><\/a>, \u306e\u57fa\u76e4\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u53ef\u80fd\u306b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u6027\u80fd\u5149\u5b66\u6280\u8853\u306b\u3064\u3044\u3066\u8ff0\u3079\u308b\u969b\u3001QPSK\u5909\u8abf\u4fe1\u53f7\u3092\u6700\u9069\u306b\u51e6\u7406\u3059\u308b\u306b\u306f\u3001\u7cbe\u5bc6\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u3068\u306a\u308b\u306e\u304c\u9ad8\u54c1\u8cea\u306e <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ja\/knowledge-center\/coherent-transceivers-high-speed-data-transmission-explained\/\"><strong>\u30b3\u30d2\u30fc\u30ec\u30f3\u30c8\u5149\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong><\/a> \u3067\u3059\u3002\u4fe1\u983c\u6027\u3092\u91cd\u8996\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u306b\u306f\u3001 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476046.htm\"><strong>LS-SM3125-10C<\/strong><\/a> \u306e\u3088\u3046\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u3001\u9577\u8ddd\u96e2\u5411\u3051\u306e, <strong>QPSK\u30d9\u30fc\u30b9\u5149\u30d5\u30a1\u30a4\u30d0\u901a\u4fe1<\/strong> \u30ea\u30f3\u30af\u306b\u304a\u3044\u3066\u5353\u8d8a\u3057\u305f\u6027\u80fd\u3092\u767a\u63ee\u3059\u308b\u3088\u3046\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u304a\u3088\u3073\u6700\u5c0f\u9650\u306e\u30d3\u30c3\u30c8\u8aa4\u308a\u7387\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 QPSK\u3068\u4ed6\u306e\u5909\u8abf\u65b9\u5f0f\u3068\u306e\u6bd4\u8f03<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u5909\u8abf\u65b9\u5f0f<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u30b7\u30f3\u30dc\u30eb\u3042\u305f\u308a\u306e\u30d3\u30c3\u30c8\u6570<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u30b9\u30da\u30af\u30c8\u30eb\u52b9\u7387<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u30ed\u30d0\u30b9\u30c8\u6027<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>BPSK<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u4f4e\u3044<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u975e\u5e38\u306b\u9ad8\u3044<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u6df1\u5b87\u5b99\u901a\u4fe1\u3001\u30ed\u30d0\u30b9\u30c8\u306a\u30ea\u30f3\u30af<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>QPSK<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u4f1d\u9001\u5a92\u4f53<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u9ad8\u3044<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u885b\u661f\u3001Wi-Fi\u3001, <strong>\u5149\u4f1d\u9001<\/strong><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>16-QAM<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u9ad8\u3044<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u4f1d\u9001\u5a92\u4f53<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>5G\u3001Wi-Fi\u3001\u30b1\u30fc\u30d6\u30eb\u30e2\u30c7\u30e0<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>64-QAM<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>6<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u975e\u5e38\u306b\u9ad8\u3044<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u4f4e\u3044<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u9ad8\u901fWi-Fi\u3001\u826f\u597d\u306a\u6761\u4ef6\u4e0b\u3067\u306e5G<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 \u9069\u5207\u306a\u6280\u8853\u3092\u7528\u3044\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6700\u9069\u5316<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306e\u3088\u3046\u306a\u5909\u8abf\u65b9\u5f0f\u306e\u7406\u89e3\u306f\u3001 <strong>QPSK<\/strong> \u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u305d\u308c\u3089\u3092\u52b9\u679c\u7684\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002\u885b\u661f\u30ea\u30f3\u30af\u306e\u8a2d\u8a08\u3067\u3082\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306e <strong>DWDM\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3067\u3082\u3001<\/strong>, \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u9078\u629e\u306f\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u9ad8\u6027\u80fd\u306e <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>\u30aa\u30d7\u30c6\u30a3\u30ab\u30eb\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30fc<\/strong><\/a> \u306f\u3001\u3053\u308c\u3089\u306e\u4fe1\u53f7\u3092\u9ad8\u7cbe\u5ea6\u3067\u5909\u8abf\u304a\u3088\u3073\u5fa9\u8abf\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u54c1\u8cea\u3068\u6280\u8853\u30b5\u30dd\u30fc\u30c8\u306e\u78ba\u5b9f\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u5b9f\u7e3e\u306e\u3042\u308b\u30e1\u30fc\u30ab\u30fc\u3068\u306e\u63d0\u643a\u304c\u9375\u3068\u306a\u308a\u307e\u3059\u3002. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> \u306f\u3001\u5148\u9032\u7684\u306a\u5149\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\uff08\u8907\u6570\u306e <strong>\u76f8\u5e72CFP2\u5149\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u542b\u3080\uff09\u306e\u5c02\u9580\u30e1\u30fc\u30ab\u30fc\u3067\u3059\u3002<\/strong> \u3053\u308c\u3089\u306f\u3001\u8907\u96d1\u306a\u5909\u8abf\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5411\u3051\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 \u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >QPSK\u3068\u306f\u4f55\u306e\u7565\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QPSK\u306f\u300c\u30af\u30a2\u30c9\u30e9\u30c1\u30e5\u30a2\u4f4d\u76f8\u30b7\u30d5\u30c8\u30fb\u30ad\u30fc\u30ea\u30f3\u30b0\uff08Quadrature Phase Shift Keying\uff09\u300d\u306e\u7565\u3067\u3059\u3002\u3053\u306e\u65b9\u5f0f\u3067\u306f\u3001\u4fe1\u53f7\u306e\u4f4d\u76f8\u3092\u5909\u5316\u3055\u305b\u308b\u3053\u3068\u3067\u30c7\u30b8\u30bf\u30eb\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >QPSK\u3068BPSK\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QPSK\u3067\u306f1\u30b7\u30f3\u30dc\u30eb\u3042\u305f\u308a2\u30d3\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u304c\u3001BPSK\u3067\u306f1\u30b7\u30f3\u30dc\u30eb\u3042\u305f\u308a1\u30d3\u30c3\u30c8\u306e\u307f\u3067\u3059\u3002QPSK\u306b\u3088\u308a\u3001\u3088\u308a\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >QPSK\u5909\u8abf\u3092\u4f7f\u7528\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QPSK\u306f\u643a\u5e2f\u96fb\u8a71\u3001Wi-Fi\u30eb\u30fc\u30bf\u30fc\u3001\u304a\u3088\u3073\u4eba\u5de5\u885b\u661f\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u3001QPSK\u3092\u7528\u3044\u3066\u30c7\u30fc\u30bf\u3092\u8fc5\u901f\u304b\u3064\u660e\u77ad\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >QPSK\u4fe1\u53f7\u306b\u30ce\u30a4\u30ba\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p 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