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- 高速DDS系統A High Speed DDS System
- 高速DDSHigh speed DDS
- 在并行DDS系統中，兩個(gè)DDS的分時(shí)輸出以及頻率的精確接續是實(shí)現的難點(diǎn)。 本文用單片機PIC16F874控制DDS的DATA FSK信號很好地解決了這一問(wèn)題。In the Coordinate DDSs system the time-sharing output and the accurate synthesis of respective output frequency bands are the main problems, which are solved by Micro-processor PIC16F874 controlling the DATA FSK signal.
- 文件系統file systems
- 生態(tài)系統ecological system
- 免疫系統immunologic system
- 管理系統managerial system
- 電力系統electric power system
- 神經(jīng)系統nervous system
- 電腦系統computer system
- 管理信息系統management information system
- 電氣系統electrical system
- 排水系統drainage system
- 嵌入式系統embedded system
- 通訊系統communication system
- 泌尿系統urinary system
- 傳動(dòng)系統transmission agent
- 地理信息系統geographical information system
- 管道系統ductwork
- 報警系統panalarm
