{"id":5088,"date":"2025-09-12T00:00:00","date_gmt":"2025-09-12T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/bpsk-modulation-basics-how-bpsk-works-in-digital-communication\/"},"modified":"2026-06-22T07:21:41","modified_gmt":"2026-06-22T07:21:41","slug":"bpsk-modulation-basics-how-bpsk-works-in-digital-communication","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/bpsk-modulation-basics-how-bpsk-works-in-digital-communication","title":{"rendered":"BPSK l\u00e0 g\u00ec v\u00e0 Ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o"},"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\/147fccc458814b6a913fbdb0f813c5a5.webp\" alt=\"What is BPSK Modulation and How Does It Work\" class=\"wp-image-5086\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/147fccc458814b6a913fbdb0f813c5a5.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/147fccc458814b6a913fbdb0f813c5a5-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/147fccc458814b6a913fbdb0f813c5a5-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/147fccc458814b6a913fbdb0f813c5a5-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/147fccc458814b6a913fbdb0f813c5a5-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ea7y nhi\u1ec5u v\u00e0 h\u1ed7n lo\u1ea1n, m\u1ee5c ti\u00eau cu\u1ed1i c\u00f9ng l\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111i\u1ec3m B. Trong kho v\u0169 kh\u00ed c\u00e1c k\u1ef9 thu\u1eadt m\u00e0 k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng, m\u1ed9t trong nh\u1eefng k\u1ef9 thu\u1eadt c\u01a1 b\u1ea3n v\u00e0 b\u1ec1n b\u1ec9 nh\u1ea5t l\u00e0 <strong>\u0110i\u1ec1u ch\u1ebf d\u1ecbch pha nh\u1ecb ph\u00e2n (BPSK)<\/strong>. \u0110\u00e2y l\u00e0 phi\u00ean b\u1ea3n \u0111i\u1ec1u ch\u1ebf s\u1ed1 c\u1ee7a m\u1ed9t con ng\u1ef1a l\u00e0m vi\u1ec7c v\u1eefng ch\u1eafc v\u00e0 \u0111\u00e1ng tin c\u1eady\u2014kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u1ed9ng l\u1eaby nh\u1ea5t, nh\u01b0ng c\u1ef1c k\u1ef3 \u0111\u00e1ng tin c\u1eady \u1edf n\u01a1i quan tr\u1ecdng nh\u1ea5t: v\u01b0\u1ee3t qua nhi\u1ec5u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft <strong>\u0111i\u1ec1u ch\u1ebf BPSK<\/strong>, \u01b0u \u0111i\u1ec3m c\u1ee7a n\u00f3, \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 v\u00e0 l\u00fd do v\u00ec sao \u0111\u00e2y l\u00e0 c\u00f4ng ngh\u1ec7 then ch\u1ed1t \u0111\u1eb1ng sau c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7u su\u1ea5t cao, t\u1ea7m xa <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/coherent-transceivers-high-speed-data-transmission-explained\/\"><strong>m\u00f4-\u0111un quang h\u1ecdc nh\u1ea5t qu\u00e1n t\u1ed1c \u0111\u1ed9 cao<\/strong><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 \u0110i\u1ec3m n\u1ed5i b\u1eadt<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>BPSK s\u1eed d\u1ee5ng hai pha, 0\u00b0 v\u00e0 180\u00b0, \u0111\u1ec3 bi\u1ec3u th\u1ecb d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n. C\u00e1ch \u0111\u01a1n gi\u1ea3n n\u00e0y gi\u00fap truy\u1ec1n t\u00edn hi\u1ec7u d\u1ec5 gi\u1ea3i m\u00e3.<\/p><\/li><li><p>BPSK \u00edt b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u n\u00ean ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng s\u1ed1 \u1edf m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p><\/li><li><p>Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng BPSK \u0111\u01a1n gi\u1ea3n. N\u00f3 ch\u1ec9 c\u1ea7n c\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n nh\u01b0 b\u1ed9 \u0111i\u1ec1u ch\u1ebf c\u00e2n b\u1eb1ng v\u00e0 b\u1ed9 d\u00f2 pha.<\/p><\/li><li><p>BPSK ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 b\u0103ng th\u00f4ng. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p nhi\u1ec1u t\u00edn hi\u1ec7u h\u01a1n c\u00f9ng t\u1ed3n t\u1ea1i trong c\u00f9ng m\u1ed9t kh\u00f4ng gian v\u00e0 kh\u00f4ng l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng.<\/p><\/li><li><p>Ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng BPSK trong truy\u1ec1n h\u00ecnh v\u1ec7 tinh, GPS v\u00e0 m\u1ea1ng kh\u00f4ng d\u00e2y. Nh\u1eefng \u1ee9ng d\u1ee5ng n\u00e0y \u0111\u00f2i h\u1ecfi t\u00edn hi\u1ec7u m\u1ea1nh v\u00e0 r\u00f5 r\u00e0ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 BPSK l\u00e0 g\u00ec? C\u00f4ng t\u1eafc chuy\u1ec3n \u0111\u1ed5i s\u1ed1<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"1167\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/64c99923d83c4ccd83471caa4963fc3c.webp\" alt=\"Binary Phase Shift Keying (BPSK)\" class=\"wp-image-5087\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/64c99923d83c4ccd83471caa4963fc3c.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/64c99923d83c4ccd83471caa4963fc3c-300x292.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/64c99923d83c4ccd83471caa4963fc3c-1024x996.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/64c99923d83c4ccd83471caa4963fc3c-768x747.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/64c99923d83c4ccd83471caa4963fc3c-12x12.webp 12w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 b\u1ea3n ch\u1ea5t, <strong>BPSK<\/strong> l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf s\u1ed1, trong \u0111\u00f3 pha c\u1ee7a s\u00f3ng mang kh\u00f4ng \u0111\u1ed5i \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i \u0111\u1ec3 bi\u1ec3u th\u1ecb d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n (c\u00e1c bit 0 v\u00e0 1).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">A <strong>0<\/strong> \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng s\u00f3ng mang c\u00f3 m\u1ed9t pha c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: 0 \u0111\u1ed9).<\/p><\/li><li><p style=\"margin: 0px;\">A <strong>1<\/strong> \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng c\u00f9ng m\u1ed9t s\u00f3ng mang, nh\u01b0ng l\u1ec7ch pha \u0111\u00fang b\u1eb1ng <strong>180 \u0111\u1ed9<\/strong>\u2014v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 \u0111\u1ea3o ng\u01b0\u1ee3c ho\u00e0n to\u00e0n.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t c\u00f4ng t\u1eafc \u0111\u00e8n: n\u00f3 ch\u1ec9 c\u00f3 hai tr\u1ea1ng th\u00e1i\u2014HO\u00c0N TO\u00c0N B\u1eacT ho\u1eb7c HO\u00c0N TO\u00c0N T\u1eaeT, kh\u00f4ng c\u00f3 tr\u1ea1ng th\u00e1i trung gian. BPSK ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd nh\u1ecb ph\u00e2n t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng thay v\u00ec d\u00f9ng \u0111i\u1ec7n, n\u00f3 d\u00f9ng pha c\u1ee7a s\u00f3ng v\u00f4 tuy\u1ebfn ho\u1eb7c \u00e1nh s\u00e1ng. S\u1ef1 thay \u0111\u1ed5i pha \u0111\u1ed9t ng\u1ed9t 180 \u0111\u1ed9 n\u00e0y khi\u1ebfn t\u00edn hi\u1ec7u r\u1ea5t d\u1ec5 ph\u00e2n bi\u1ec7t v\u1edbi nhi\u1ec5u, ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n k\u00e9m.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 V\u00ec sao ch\u1ecdn BPSK? C\u00e1c \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">BPSK \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao nh\u1edd kh\u1ea3 n\u0103ng <strong>ch\u1ed1ng nhi\u1ec5u tuy\u1ec7t v\u1eddi<\/strong>, \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng k\u1ef9 thu\u1eadt d\u01b0\u1edbi d\u1ea1ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>T\u1ef7 l\u1ec7 L\u1ed7i Bit (BER)<\/strong><\/a> hi\u1ec7u su\u1ea5t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do v\u00ec sao BPSK v\u01b0\u1ee3t tr\u1ed9i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>T\u1ef7 l\u1ec7 l\u1ed7i bit (BER) v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng t\u1ef7 s\u1ed1 t\u00edn hi\u1ec7u-nhi\u1ec5u (SNR) th\u1ea5p:<\/strong> BPSK y\u00eau c\u1ea7u \u00edt nh\u1ea5t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/snr-signal-to-noise-ratio-and-its-impact-on-signal-quality\/\"><strong>\u0111\u1ee7 cao<\/strong><\/a> \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 l\u1ed7i bit th\u1ea5p so v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf c\u01a1 b\u1ea3n kh\u00e1c nh\u01b0 QPSK ho\u1eb7c 16-QAM. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn b\u1ec1n b\u1ec9 nh\u1ea5t cho c\u00e1c li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i ho\u1eb7c nhi\u1ec5u cao.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u00ednh \u0111\u01a1n gi\u1ea3n:<\/strong> Qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, d\u1eabn \u0111\u1ebfn thi\u1ebft k\u1ebf b\u1ed9 thu d\u1ec5 d\u00e0ng h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Bao b\u00ec bi\u00ean \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i:<\/strong> Bi\u00ean \u0111\u1ed9 t\u00edn hi\u1ec7u BPSK lu\u00f4n kh\u00f4ng \u0111\u1ed5i, gi\u00fap gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u00e1t sinh v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i phi tuy\u1ebfn.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 So s\u00e1nh BPSK v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf kh\u00e1c: T\u1ed5ng quan nhanh<\/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>S\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Bit tr\u00ean m\u1ed7i k\u00fd hi\u1ec7u<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 b\u1ec1n (kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Hi\u1ec7u su\u1ea5t ph\u1ed5<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>BPSK<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>1<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>\u2b50\ufe0f\u2b50\ufe0f\u2b50\ufe0f\u2b50\ufe0f\u2b50\ufe0f (Cao nh\u1ea5t)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n th\u00f4ng v\u0169 tr\u1ee5 s\u00e2u, k\u00eanh nhi\u1ec5u cao, quang h\u1ecdc t\u1ea7m xa<\/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>\u2b50\ufe0f\u2b50\ufe0f\u2b50\ufe0f\u2b50\ufe0f (Cao)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u00e1t s\u00f3ng v\u1ec7 tinh, internet DSL, truy\u1ec1n th\u00f4ng xu\u1ed1ng (downlink)<\/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>\u2b50\ufe0f\u2b50\ufe0f\u2b50\ufe0f (Trung b\u00ecnh)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 \u0111i\u1ec1u ch\u1ebf c\u00e1p, Wi-Fi (k\u00eanh 5\/6 GHz), \u0111\u01b0\u1eddng truy\u1ec1n vi ba (microwave backhaul)<\/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>\u2b50\ufe0f\u2b50\ufe0f (Th\u1ea5p)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Wi-Fi (t\u00edn hi\u1ec7u m\u1ea1nh), 4G\/5G, truy\u1ec1n h\u00ecnh s\u1ed1<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>B\u1ea3ng: So s\u00e1nh c\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf s\u1ed1 ph\u1ed5 bi\u1ebfn.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 BPSK trong th\u1ef1c t\u1ebf: C\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n s\u1ebd kh\u00f4ng t\u00ecm th\u1ea5y <strong>BPSK<\/strong> trong b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Wi-Fi t\u1ea7m ng\u1eafn c\u1ee7a b\u1ea1n (s\u1eed d\u1ee5ng QAM b\u1eadc cao h\u01a1n \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9), nh\u01b0ng n\u00f3 \u0111ang ho\u1ea1t \u0111\u1ed9ng \u00e2m th\u1ea7m trong m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quan tr\u1ecdng nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Truy\u1ec1n th\u00f4ng v\u0169 tr\u1ee5 s\u00e2u:<\/strong> NASA s\u1eed d\u1ee5ng BPSK \u0111\u1ec3 giao ti\u1ebfp v\u1edbi c\u00e1c t\u00e0u th\u0103m d\u00f2 nh\u01b0 Voyager. Tr\u00ean kho\u1ea3ng c\u00e1ch h\u00e0ng t\u1ef7 d\u1eb7m, t\u00edn hi\u1ec7u c\u1ef1c k\u1ef3 y\u1ebfu; \u0111\u1ed9 b\u1ec1n c\u1ee7a BPSK l\u00e0 c\u00e1ch duy nh\u1ea5t \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n th\u00e0nh c\u00f4ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Th\u1ebb RFID:<\/strong> Nhi\u1ec1u th\u1ebb RFID th\u1ee5 \u0111\u1ed9ng s\u1eed d\u1ee5ng BPSK nh\u1edd hi\u1ec7u su\u1ea5t ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n ph\u1ea3n x\u1ea1 (backscatter) \u0111\u00e1ng tin c\u1eady.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Wi-Fi &amp; Bluetooth:<\/strong> M\u1eb7c d\u00f9 kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng cho t\u1ea3i d\u1eef li\u1ec7u ch\u00ednh, BPSK th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong ph\u1ea7n ti\u00eau \u0111\u1ec1 v\u00e0 ph\u1ea7n \u0111i\u1ec1u khi\u1ec3n c\u1ee7a g\u00f3i tin, n\u01a1i \u0111\u1ed9 tin c\u1eady l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u1ed9ng l\u1ef1c th\u1ef1c s\u1ef1: Truy\u1ec1n th\u00f4ng quang \u0111\u1ed3ng pha:<\/strong> \u0110\u00e2y l\u00e0 l\u0129nh v\u1ef1c BPSK th\u1ef1c s\u1ef1 t\u1ecfa s\u00e1ng ng\u00e0y nay. Trong truy\u1ec1n th\u00f4ng quang \u0111\u01b0\u1eddng d\u00e0i v\u00e0 si\u00eau \u0111\u01b0\u1eddng d\u00e0i <strong>S\u1eed d\u1ee5ng<\/strong>, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n qua s\u1ee3i quang b\u1eb1ng \u00e1nh s\u00e1ng. \u0110\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 c\u1ef1c cao tr\u00ean h\u00e0ng ngh\u00ecn kil\u00f4m\u00e9t, c\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng <strong>ph\u00e1t hi\u1ec7n coherent<\/strong> c\u00e1c k\u1ef9 thu\u1eadt truy\u1ec1n th\u00f4ng quang \u0111\u1ed3ng pha v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf nh\u01b0 BPSK. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ed9 thu ph\u00e1t hi\u1ec7n c\u1ea3 bi\u00ean \u0111\u1ed9 v\u00e0 pha c\u1ee7a s\u00f3ng \u00e1nh s\u00e1ng, t\u1eeb \u0111\u00f3 m\u1edf r\u1ed9ng \u0111\u00e1ng k\u1ec3 ph\u1ea1m vi v\u00e0 dung l\u01b0\u1ee3ng truy\u1ec1n t\u1ea3i.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00ednh t\u1ea1i \u0111\u00e2y, m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> khai th\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y. V\u00ed d\u1ee5, m\u00f4-\u0111un <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482513.htm\"><strong>QSFP28-100G-ZR4<\/strong><\/a> m\u00f4-\u0111un quang h\u1ecdc nh\u1ea5t qu\u00e1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u ch\u1ebf ti\u00ean ti\u1ebfn nh\u01b0 BPSK (v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 c\u1ee7a n\u00f3) trong n\u1ec1n t\u1ea3ng c\u1ee7a n\u00f3 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\"><strong>DSP (B\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1)<\/strong><\/a> nh\u1eb1m cung c\u1ea5p hi\u1ec7u su\u1ea5t 100G xu\u1ea5t s\u1eafc tr\u00ean kho\u1ea3ng c\u00e1ch v\u01b0\u1ee3t qu\u00e1 80 km. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n v\u1eabn \u0111\u01b0\u1ee3c duy tr\u00ec ngay c\u1ea3 tr\u00ean c\u00e1c m\u1ea1ng truy\u1ec1n d\u1eabn quang <strong>\u0111\u01b0\u1eddng d\u00e0i \u0111\u00f2i h\u1ecfi kh\u1eaft khe nh\u1ea5t<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi th\u1ea3o lu\u1eadn v\u1ec1 <strong>m\u00f4-\u0111un quang h\u1ecdc nh\u1ea5t qu\u00e1n t\u1ed1c \u0111\u1ed9 cao<\/strong> v\u00e0 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c nh\u1eb1m <strong>c\u1ea3i thi\u1ec7n t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u trong quang s\u1ee3i<\/strong>, vi\u1ec7c hi\u1ec3u vai tr\u00f2 c\u1ee7a c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u ch\u1ebf n\u1ec1n t\u1ea3ng nh\u01b0 BPSK l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ed1i v\u1edbi c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a4 K\u1ebft lu\u1eadn: Ng\u01b0\u1eddi h\u00f9ng th\u1ea7m l\u1eb7ng b\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>BPSK<\/strong> c\u00f3 th\u1ec3 kh\u00f4ng ph\u1ea3i l\u00e0 s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf nhanh nh\u1ea5t, nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u v\u00f4 song c\u1ee7a n\u00f3 khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u kh\u00f4ng th\u1ec3 tranh c\u00e3i cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u kh\u00f4ng th\u1ec3 b\u1ecb x\u00e2m ph\u1ea1m. \u0110\u00e2y l\u00e0 ng\u01b0\u1eddi b\u1ea3o v\u1ec7 th\u1ea7m l\u1eb7ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u quan tr\u1ecdng nh\u1ea5t c\u1ee7a ch\u00fang ta\u2014t\u1eeb r\u00eca H\u1ec7 M\u1eb7t Tr\u1eddi \u0111\u1ebfn l\u00f5i h\u1ea1 t\u1ea7ng internet to\u00e0n c\u1ea7u\u2014\u0111\u01b0\u1ee3c truy\u1ec1n \u0111i nguy\u00ean v\u1eb9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi nhu c\u1ea7u m\u1ea1ng ng\u00e0y c\u00e0ng gia t\u0103ng v\u00e0 ph\u1ea1m vi ph\u1ee7 s\u00f3ng ng\u00e0y c\u00e0ng m\u1edf r\u1ed9ng, c\u00e1c nguy\u00ean l\u00fd c\u1ee7a BPSK ti\u1ebfp t\u1ee5c l\u00e0m n\u1ec1n t\u1ea3ng cho c\u00e1c c\u00f4ng ngh\u1ec7 \u0111\u1ed3ng b\u1ed9 ti\u00ean ti\u1ebfn, v\u1ed1n \u0111ang v\u1eadn h\u00e0nh th\u1ebf gi\u1edbi k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang ta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udca1 S\u1eb5n s\u00e0ng x\u00e2y d\u1ef1ng m\u1ed9t m\u1ea1ng l\u01b0\u1edbi b\u1ec1n b\u1ec9 h\u01a1n?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean. B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ea7n c\u1ee9ng ph\u00f9 h\u1ee3p \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a \u0111\u1ed9 b\u1ec1n b\u1ec9 n\u00e0y cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n. <strong>Kh\u00e1m ph\u00e1 to\u00e0n b\u1ed9 d\u00f2ng m\u00f4-\u0111un quang h\u1ecdc \u0111\u1ed3ng pha hi\u1ec7u su\u1ea5t cao c\u1ee7a LINK-PP<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m \u0111\u1ea1t ph\u1ea1m vi truy\u1ec1n d\u1eabn t\u1ed1i \u0111a v\u00e0 \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u cao nh\u1ea5t. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/support.htm\"><strong>Li\u00ean h\u1ec7 ngay v\u1edbi chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i<\/strong><\/a> \u0111\u1ec3 t\u00ecm ra gi\u1ea3i ph\u00e1p ho\u00e0n h\u1ea3o \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a b\u1ea1n!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n c\u00e1 nh\u00e2n h\u00f3a v\u00e0 kh\u00e1m ph\u00e1 s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >BPSK l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">BPSK l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a \u0110i\u1ec1u ch\u1ebf D\u1ecbch pha Nh\u1ecb ph\u00e2n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y truy\u1ec1n d\u1eef li\u1ec7u s\u1ed1 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i pha c\u1ee7a t\u00edn hi\u1ec7u mang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec l\u00e0m cho BPSK kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c lo\u1ea1i \u0111i\u1ec1u ch\u1ebf kh\u00e1c?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">BPSK ch\u1ec9 s\u1eed d\u1ee5ng hai tr\u1ea1ng th\u00e1i pha: 0\u00b0 v\u00e0 180\u00b0. \u0110i\u1ec1u n\u00e0y gi\u00fap BPSK \u0111\u01a1n gi\u1ea3n v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u. C\u00e1c lo\u1ea1i kh\u00e1c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nhi\u1ec1u tr\u1ea1ng th\u00e1i pha h\u01a1n ho\u1eb7c thay \u0111\u1ed5i bi\u00ean \u0111\u1ed9 t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea1n c\u1ea7n nh\u1eefng thi\u1ebft b\u1ecb n\u00e0o \u0111\u1ec3 tri\u1ec3n khai BPSK?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n m\u1ed9t b\u1ed9 \u0111i\u1ec1u ch\u1ebf c\u00e2n b\u1eb1ng \u1edf ph\u00eda m\u00e1y ph\u00e1t. M\u00e1y thu c\u1ea7n m\u1ed9t b\u1ed9 d\u00f2 pha. Nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0y gi\u00fap b\u1ea1n t\u1ea1o ra v\u00e0 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u BPSK.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a BPSK l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">BPSK \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong truy\u1ec1n h\u00ecnh v\u1ec7 tinh, h\u1ec7 th\u1ed1ng GPS, m\u1ea1ng kh\u00f4ng d\u00e2y v\u00e0 th\u00f4ng tin li\u00ean l\u1ea1c s\u00e2u trong kh\u00f4ng gian. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng khi b\u1ea1n c\u1ea7n m\u1ed9t t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng l\u1ee3i \u00edch ch\u00ednh c\u1ee7a BPSK l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">BPSK mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u m\u1ea1nh m\u1ebd, c\u1ea5u h\u00ecnh \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng. N\u00f3 gi\u00fap b\u1ea1n truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi \u00edt sai s\u00f3t h\u01a1n, ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110i\u1ec1u ch\u1ebf BPSK s\u1eed d\u1ee5ng hai tr\u1ea1ng th\u00e1i pha \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u s\u1ed1 m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u m\u1ea1nh v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111\u01a1n gi\u1ea3n.<\/p>","protected":false},"author":1,"featured_media":5086,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5088","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5088","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=5088"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5088\/revisions"}],"predecessor-version":[{"id":11141,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5088\/revisions\/11141"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5086"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}