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引用次数: 0
摘要
软件定义无线电(SDR)概念近年来引起了研究界、工业界和军方的极大兴趣。多模式、多频带或软件定义的无线电终端使用户能够使用单个终端访问不同的系统。实现多频段、多模式或软件定义的无线电终端需要在几个领域取得技术进步。可编程、可调谐和/或宽带射频(RF)前端组件的设计对于实现这种SDR终端具有极其重要的意义。本文提出了一种基于DDS (Direct Digital Synthesizer)的合成器设计方案，该合成器具有高调谐速度(17us)、低分辨率(1Hz)、优越的相位噪声性能、中等杂散性能和宽调谐范围(50MHz-3100MHz)。
A 50MHz-3100MHz DDS based Frequency Synthesizer Module
The Software Defined Radio (SDR) concept has attracted considerable interest from research community, industry and military in recent years. Multi-mode, multi-band or software defined radio terminals enable the user to have access to different systems with a single terminal. Realization of multiband, multi-mode, or software defined radio terminals requires technical progress in several areas. The design of programmable, tunable and/or wideband radio frequency (RF) front-end components carries extreme importance for the realization of such a SDR terminal. This proposal shows a DDS (Direct Digital Synthesizer) based synthesizer design which has capability of high tuning speed (17us), low resolution (1Hz), superior phase noise performance, moderate spurious performance and wide tuning range (50MHz-3100MHz).
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