{"id":1298,"date":"2025-10-05T15:28:49","date_gmt":"2025-10-05T15:28:49","guid":{"rendered":"https:\/\/www.wallisemi.com\/?p=1298"},"modified":"2025-10-06T15:29:42","modified_gmt":"2025-10-06T15:29:42","slug":"ung-dung-cua-chip-thu-song-rf-don-the-he-beidou-rnc2410","status":"publish","type":"post","link":"https:\/\/www.wallisemi.com\/vi\/blog\/industry-insights\/application-of-the-beidou-generation-rf-single-receiver-chip-rnc2410\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u1ee7a chip thu s\u00f3ng v\u00f4 tuy\u1ebfn th\u1ebf h\u1ec7 Beidou RNC2410"},"content":{"rendered":"

T\u1ed5ng quan<\/strong><\/strong><\/h4>\n\n\n\n

C\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi v\u00e0 nhanh ch\u00f3ng ph\u00e1t tri\u1ec3n th\u00e0nh m\u1ed9t ng\u00e0nh c\u00f4ng nghi\u1ec7p m\u1edbi n\u1ed5i \u2014 ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u1ecbnh v\u1ecb v\u00e0 d\u1eabn \u0111\u01b0\u1eddng v\u1ec7 tinh. Hoa K\u1ef3 v\u00e0 Nga \u0111\u00e3 x\u00e2y d\u1ef1ng th\u00e0nh c\u00f4ng c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh to\u00e0n c\u1ea7u, l\u1ea7n l\u01b0\u1ee3t l\u00e0 GPS v\u00e0 GLONASS, c\u00f2n Li\u00ean minh ch\u00e2u \u00c2u hi\u1ec7n \u0111ang x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng GALILEO. N\u0103m 2000, Trung Qu\u1ed1c \u0111\u00e3 ph\u00f3ng hai v\u1ec7 tinh cho H\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh Beidou (BDS), \u0111\u00e1nh d\u1ea5u m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh c\u1ee7a Trung Qu\u1ed1c. \u0110i\u1ec1u n\u00e0y \u0111\u00e3 \u0111\u01b0a Trung Qu\u1ed1c tr\u1edf th\u00e0nh qu\u1ed1c gia th\u1ee9 ba tr\u00ean th\u1ebf gi\u1edbi s\u1edf h\u1eefu h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh \u0111\u1ed9c l\u1eadp.<\/p>\n\n\n\n

Kh\u00e1c v\u1edbi GPS, H\u1ec7 th\u1ed1ng \u0110\u1ecbnh v\u1ecb V\u1ec7 tinh Beidou s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb hai chi\u1ec1u ch\u1ee7 \u0111\u1ed9ng. H\u1ec7 th\u1ed1ng Beidou bao g\u1ed3m hai v\u1ec7 tinh \u0111\u1ecba t\u0129nh, m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m, m\u1ed9t h\u1ec7 th\u1ed1ng hi\u1ec7u chu\u1ea9n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng kh\u00e1c nhau. H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m g\u1eedi t\u00edn hi\u1ec7u y\u00eau c\u1ea7u \u0111\u1ebfn hai v\u1ec7 tinh, sau \u0111\u00f3 c\u00e1c t\u00edn hi\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c truy\u1ec1n l\u1ea1i \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng trong khu v\u1ef1c ph\u1ee7 s\u00f3ng. Ng\u01b0\u1eddi d\u00f9ng ph\u1ea3n h\u1ed3i t\u00edn hi\u1ec7u y\u00eau c\u1ea7u c\u1ee7a m\u1ed9t v\u1ec7 tinh v\u00e0 g\u1eedi ph\u1ea3n h\u1ed3i \u0111\u1ebfn c\u1ea3 hai v\u1ec7 tinh, sau \u0111\u00f3 t\u00edn hi\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp tr\u1edf l\u1ea1i h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m. H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n nh\u1eadn v\u00e0 gi\u1ea3i m\u00e3 t\u00edn hi\u1ec7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, x\u1eed l\u00fd ch\u00fang ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n\n\n\n

M\u1eb7c d\u00f9 h\u1ec7 th\u1ed1ng v\u1ec7 tinh th\u1ebf h\u1ec7 Beidou c\u00f3 kh\u1ea3 n\u0103ng truy\u1ec1n th\u00f4ng, nh\u01b0ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ecbnh v\u1ecb ch\u1ee7 \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u1ea1i h\u1ea1n ch\u1ebf m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng, \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb, t\u00ednh \u1ea9n danh v\u00e0 t\u1ea7n su\u1ea5t \u0111\u1ecbnh v\u1ecb. Nh\u1edd nh\u1eefng c\u1ea3i ti\u1ebfn trong thu\u1eadt to\u00e1n x\u1eed l\u00fd b\u0103ng t\u1ea7n c\u01a1 s\u1edf c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh th\u1ebf h\u1ec7 Beidou, hi\u1ec7n nay \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng \u0111\u1ecbnh v\u1ecb th\u1ee5 \u0111\u1ed9ng b\u1eb1ng ba v\u1ec7 tinh. N\u0103m 2005, Trung Qu\u1ed1c \u0111\u00e3 ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng b\u1ed9 thu \u0111\u1ecbnh v\u1ecb th\u1ee5 \u0111\u1ed9ng v\u1ec7 tinh Beidou I \u0111\u1ea7u ti\u00ean, gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 \u0111\u1ecbnh v\u1ecb nhanh th\u1eddi gian th\u1ef1c m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp. Thi\u1ebft b\u1ecb n\u00e0y cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 \u0111i\u1ec1u h\u01b0\u1edbng v\u00e0 \u0111\u1ecbnh v\u1ecb th\u1eddi gian th\u1ef1c, \u0111\u1ed9 ch\u00ednh x\u00e1c cao, trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft cho Trung Qu\u1ed1c v\u00e0 c\u00e1c khu v\u1ef1c l\u00e2n c\u1eadn. S\u1ef1 ho\u00e0n thi\u1ec7n li\u00ean t\u1ee5c c\u1ee7a \u0111\u1ecbnh v\u1ecb th\u1ee5 \u0111\u1ed9ng th\u1ebf h\u1ec7 Beidou m\u1edf r\u1ed9ng \u0111\u00e1ng k\u1ec3 c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u1ea7u cu\u1ed1i th\u1ebf h\u1ec7 Beidou.<\/p>\n\n\n\n

M\u1ed9t \u1ee9ng d\u1ee5ng quan tr\u1ecdng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i th\u1ebf h\u1ec7 Beidou l\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a th\u1eddi gian b\u1eb1ng m\u1ed9t b\u1ed9 thu duy nh\u1ea5t, v\u1ed1n l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c tr\u1ea1m c\u01a1 s\u1edf vi\u1ec5n th\u00f4ng v\u00e0 ng\u00e0nh \u0111i\u1ec7n l\u1ef1c. Hi\u1ec7n nay, c\u00e1c ng\u00e0nh n\u00e0y v\u1eabn \u0111ang d\u1ef1a v\u00e0o GPS \u0111\u1ec3 \u0111\u1ed3ng b\u1ed9 h\u00f3a th\u1eddi gian, nh\u01b0ng ng\u00e0y c\u00e0ng r\u00f5 r\u00e0ng r\u1eb1ng vi\u1ec7c \u00e1p d\u1ee5ng \u0111\u1ed3ng b\u1ed9 h\u00f3a th\u1eddi gian Beidou s\u1ebd tr\u1edf th\u00e0nh xu h\u01b0\u1edbng, v\u1edbi nhu c\u1ea7u r\u1ea5t l\u1edbn.<\/p>\n\n\n\n

Chip RF RNC2410: M\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 quan tr\u1ecdng cho th\u1ebf h\u1ec7 Beidou<\/strong><\/strong><\/h4>\n\n\n\n

\u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u tr\u00ean th\u1ecb tr\u01b0\u1eddng b\u1ed9 thu \u0111\u01a1n th\u1ebf h\u1ec7 Beidou, m\u1ed9t c\u00f4ng ty Trung Qu\u1ed1c \u0111\u00e3 ph\u00e1t tri\u1ec3n Chip thu s\u00f3ng v\u00f4 tuy\u1ebfn \u0111\u01a1n thu th\u1ebf h\u1ec7 Beidou RNC2410<\/strong>. RNC2410 mang l\u1ea1i hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i, m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cao v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn. Thi\u1ebft b\u1ecb n\u00e0y ch\u1ec9 c\u1ea7n m\u1ed9t s\u1ed1 linh ki\u1ec7n ngo\u1ea1i vi \u0111\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng thu s\u00f3ng RF c\u1ee7a h\u1ec7 th\u1ed1ng Beidou, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc s\u1ea3n ph\u1ea9m v\u00e0 chi ph\u00ed h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a RNC2410<\/strong><\/strong><\/h4>\n\n\n\n

RNC2410 l\u00e0 m\u1ed9t chip thu s\u00f3ng t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn (RF) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh cho h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh Beidou th\u1ebf h\u1ec7 m\u1edbi. Chip n\u00e0y t\u00edch h\u1ee3p t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un k\u00eanh thu v\u00e0 b\u1ed9 t\u1ed5ng h\u1ee3p t\u1ea7n s\u1ed1. K\u00eanh thu cung c\u1ea5p c\u1ea3 \u0111\u1ea7u ra t\u00edn hi\u1ec7u analog v\u00e0 \u0111\u1ea7u ra t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng t\u1eed h\u00f3a b\u1eb1ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC, c\u00f9ng v\u1edbi \u0111\u1ea7u ra \u0111\u1ed3ng h\u1ed3 l\u1ea5y m\u1eabu. Ch\u1ec9 v\u1edbi m\u1ed9t s\u1ed1 linh ki\u1ec7n ngo\u1ea1i vi, chip n\u00e0y c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng thu s\u00f3ng c\u1ea7n thi\u1ebft cho c\u00e1c thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng Beidou. Chip s\u1eed d\u1ee5ng giao th\u1ee9c giao ti\u1ebfp SPI ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

Con chip n\u00e0y \u00e1p d\u1ee5ng c\u1ea5u tr\u00fac chuy\u1ec3n \u0111\u1ed5i t\u1ea7n s\u1ed1 hai giai \u0111o\u1ea1n. B\u1ed9 thu tr\u01b0\u1edbc ti\u00ean s\u1ebd chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u RF xu\u1ed1ng t\u1ea7n s\u1ed1 trung gian \u0111\u1ea7u ti\u00ean (IF) th\u00f4ng qua m\u1ea1ch \u0111\u1ea7u v\u00e0o RF, sau \u0111\u00f3 ti\u1ebfp t\u1ee5c chuy\u1ec3n \u0111\u1ed5i t\u1ea7n s\u1ed1 IF \u0111\u1ea7u ti\u00ean xu\u1ed1ng t\u1ea7n s\u1ed1 IF cu\u1ed1i c\u00f9ng th\u00f4ng qua b\u1ed9 tr\u1ed9n th\u1ee9 hai. V\u1edbi vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch t\u1ea7n s\u1ed1 h\u1ee3p l\u00fd, \u0111i\u1ec1u n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng tri\u1ec7t ti\u00eau t\u00edn hi\u1ec7u ph\u1ea3n x\u1ea1 v\u00e0 \u0111\u1ed9 ch\u1ecdn l\u1ecdc k\u00eanh c\u1ee7a b\u1ed9 thu. \u0110\u1ec3 t\u0103ng c\u01b0\u1eddng t\u00ednh t\u00edch h\u1ee3p c\u1ee7a chip v\u00e0 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n b\u00ean ngo\u00e0i, chip t\u00edch h\u1ee3p b\u1ed9 t\u1ed5ng h\u1ee3p t\u1ea7n s\u1ed1 v\u00e0 c\u00e1c b\u1ed9 dao \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n \u00e1p (VCO) t\u01b0\u01a1ng \u1ee9ng, c\u0169ng nh\u01b0 m\u1ea1ch kh\u00f3a pha (PLL) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra \u0111\u1ed3ng h\u1ed3 l\u1ea5y m\u1eabu ADC. PLL n\u00e0y c\u0169ng cung c\u1ea5p \u0111\u1ed3ng h\u1ed3 tham chi\u1ebfu cho ph\u1ea7n b\u0103ng t\u1ea7n c\u01a1 s\u1edf.<\/p>\n\n\n\n

M\u1ed9t b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f3 \u0111\u1ed9 l\u1ee3i \u0111i\u1ec1u ch\u1ec9nh theo b\u01b0\u1edbc 1dB \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong giai \u0111o\u1ea1n t\u1ea7n s\u1ed1 trung gian (IF), \u0111\u1ea3m b\u1ea3o m\u1ee9c t\u00edn hi\u1ec7u \u0111\u1ea7u ra duy tr\u00ec \u1edf \u0111i\u1ec7n \u00e1p ch\u00eanh l\u1ec7ch \u0111\u1ec9nh-\u0111\u1ec9nh 1V th\u00f4ng qua v\u00f2ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 l\u1ee3i t\u1ef1 \u0111\u1ed9ng (AGC). RNC2410 c\u00f3 th\u1ec3 cung c\u1ea5p c\u1ea3 t\u00edn hi\u1ec7u IF d\u1ea1ng analog v\u00e0 t\u00edn hi\u1ec7u l\u01b0\u1ee3ng t\u1eed h\u00f3a 2 bit.<\/p>\n\n\n\n

C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a RNC2410<\/strong><\/strong><\/h4>\n\n\n\n

Nh\u1edd m\u1ee9c \u0111\u1ed9 t\u00edch h\u1ee3p cao, chip RNC2410 gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch ch\u1ec9 y\u00eau c\u1ea7u m\u1ed9t m\u1ea1ch ngo\u1ea1i vi t\u1ed1i thi\u1ec3u cho ch\u1ee9c n\u0103ng thu t\u00edn hi\u1ec7u. H\u00ecnh 1 tr\u00ecnh b\u00e0y s\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng c\u1ee7a m\u1ed9t thi\u1ebft b\u1ecb thu t\u00edn hi\u1ec7u Beidou th\u1ebf h\u1ec7 m\u1edbi s\u1eed d\u1ee5ng chip RNC2410.<\/p>\n\n\n\n

Trong s\u01a1 \u0111\u1ed3, b\u1ed9 khu\u1ebfch \u0111\u1ea1i ti\u1ebfng \u1ed3n th\u1ea5p (LNA) BDI d\u00e0nh cho Beidou I cung c\u1ea5p h\u1ec7 s\u1ed1 khu\u1ebfch \u0111\u1ea1i l\u1edbn h\u01a1n 42dB v\u1edbi h\u1ec7 s\u1ed1 ti\u1ebfng \u1ed3n d\u01b0\u1edbi 1,3dB. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i t\u01b0\u01a1ng t\u1ef1-s\u1ed1 (ADC) c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng chip AD9283 c\u1ee7a ADI ho\u1eb7c c\u00e1c s\u1ea3n ph\u1ea9m t\u01b0\u01a1ng t\u1ef1. D\u1ea3i t\u1ea7n s\u1ed1 c\u01a1 s\u1edf BDI c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng chip chuy\u00ean d\u1ee5ng ho\u1eb7c FPGA.<\/p>\n\n\n\n

Do \u0111\u1ea7u v\u00e0o RF c\u1ee7a RNC2410 l\u00e0 d\u1ea1ng vi sai, trong khi tr\u1edf kh\u00e1ng \u0111\u1ea7u ra c\u1ee7a b\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u y\u1ebfu (LNA) l\u00e0 d\u1ea1ng \u0111\u01a1n c\u1ef1c (50 ohm), n\u00ean c\u1ea7n ph\u1ea3i c\u00f3 c\u00e1c m\u1ea1ch \u0111i\u1ec1u ch\u1ec9nh tr\u1edf kh\u00e1ng \u0111\u1ea7u v\u00e0o. M\u1ed9t balun chuy\u1ec3n \u0111\u1ed5i t\u1eeb 50 ohm \u0111\u01a1n c\u1ef1c sang 100 ohm vi sai \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi m\u1ea1ng T vi sai \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u00f9 h\u1ee3p v\u1ec1 tr\u1edf kh\u00e1ng gi\u1eefa balun v\u00e0 chip.<\/p>\n\n\n\n

\u0110\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng kh\u1eed nhi\u1ec5u h\u00ecnh \u1ea3nh v\u00e0 \u0111\u1ed9 ch\u1ecdn l\u1ecdc k\u00eanh, m\u1ed9t b\u1ed9 l\u1ecdc SAW c\u00f3 \u0111\u1ed9 ch\u1ecdn l\u1ecdc cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i t\u1ea7n s\u1ed1 trung gian (IF) \u0111\u1ea7u ti\u00ean v\u00e0 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ph\u00f9 h\u1ee3p. RNC2410 cung c\u1ea5p hai giao di\u1ec7n k\u1ebft n\u1ed1i v\u1edbi ph\u1ea7n b\u0103ng c\u01a1 s\u1edf: m\u1ed9t giao di\u1ec7n cung c\u1ea5p t\u00edn hi\u1ec7u IF d\u1ea1ng analog, \u0111\u01b0\u1ee3c l\u1ea5y m\u1eabu b\u1edfi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ADC b\u00ean ngo\u00e0i \u0111\u1ec3 t\u1ea1o ra t\u00edn hi\u1ec7u l\u01b0\u1ee3ng t\u1eed h\u00f3a cho b\u0103ng c\u01a1 s\u1edf; trong khi giao di\u1ec7n c\u00f2n l\u1ea1i cung c\u1ea5p t\u00edn hi\u1ec7u IF l\u01b0\u1ee3ng t\u1eed h\u00f3a v\u1edbi \u0111\u1ed9 ph\u00e2n gi\u1ea3i 2 bit, \u0111\u01b0\u1ee3c truy\u1ec1n tr\u1ef1c ti\u1ebfp \u0111\u1ebfn b\u0103ng c\u01a1 s\u1edf.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i Beidou I s\u1eed d\u1ee5ng chip RNC2410 cho th\u1ea5y \u0111\u1ed9 nh\u1ea1y thu cao h\u01a1n -157,6 dBm.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn<\/strong><\/strong><\/h4>\n\n\n\n

RNC2410 l\u00e0 m\u1ed9t chip t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn (RF) \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ed9c l\u1eadp d\u00e0nh cho h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh Beidou. S\u1ea3n ph\u1ea9m n\u00e0y gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc v\u00e0 chi ph\u00ed so v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m truy\u1ec1n th\u1ed1ng. Hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4-\u0111un ho\u00e0n to\u00e0n \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng t\u1ed5ng th\u1ec3 v\u00e0 hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng th\u1eed nghi\u1ec7m. D\u1ef1 ki\u1ebfn s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t s\u1ebd s\u1edbm \u0111\u01b0\u1ee3c tri\u1ec3n khai, \u0111i\u1ec1u n\u00e0y s\u1ebd th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u1ecbnh v\u1ecb v\u1ec7 tinh Beidou t\u1ea1i Trung Qu\u1ed1c.<\/p>","protected":false},"excerpt":{"rendered":"

Overview Satellite navigation technology has become a widely adopted positioning technology in human activities and rapidly developed into an emerging industry\u2014the satellite navigation and positioning industry. The United States and Russia have successfully built global satellite navigation systems, GPS and GLONASS, respectively, and the European Union is currently constructing the GALILEO system. In 2000, China […]<\/p>\n","protected":false},"author":1,"featured_media":1297,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,31],"tags":[34],"class_list":["post-1298","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-insights","category-blog","tag-gene-xu"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/comments?post=1298"}],"version-history":[{"count":1,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1298\/revisions"}],"predecessor-version":[{"id":1299,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/posts\/1298\/revisions\/1299"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/media\/1297"}],"wp:attachment":[{"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/media?parent=1298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/categories?post=1298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wallisemi.com\/vi\/wp-json\/wp\/v2\/tags?post=1298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}