| 摘要: |
| 直接数字式频率合成（DDS）技术是一种全数字频率合成技术，其特殊的原理和结构使它具有多种调制能力。本文介绍了DDS在卫星通信数字接收机中频电路中的应用，并给出了其实际的设计方案。 |
| 关键词: 数字接收机 中频电路 直拉数字式频率合成 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:October 15, 2001 |
| 基金项目: |
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| Research on IF Circuit of Digital Receiver |
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| Abstract: |
| Direct digital synthesis(DDS)is an all digital frequency synthesis technique.Because of its special theory and construction,it has many kinds of modulation capability.This paper presents the application of DDS in satellite communication digital receiver IF circuit and its practical design method. |
| Key words: Digital receiver,IF circuit,Direct digital synthesis |
