File:Dieuche QPSK.png
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Dieuche_QPSK.png (475 × 253 pixels, file size: 28 KB, MIME type: image/png)
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| Description |
Tiếng Việt: Thay vì dùng 2 pha để xác định giá trị nhị phân, bốn pha có thể được dùng. Mỗi
pha trong bộ bốn này có thể dùng để mô tả hai giá trị nhị phân (00,01,10,11) thay vì chỉ một (0 hoặc 1), như vậy sẽ giúp ngắn thời gian truyền. Hình đây mô tả ký tự K trong bảng mã ASCII, có thể được mã hóa và truyền dùng kỹ thuật này. ở đây có ít chu kỳ lấy mẫu hơn hình vẽ trước. |
| Date | |
| Source | Own work |
| Author | Hacsugia |
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I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:27, 25 October 2018 | | 475 × 253 (28 KB) | Hacsugia (talk | contribs) | User created page with UploadWizard |
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