| 摘要: |
| 介绍了一种适用于数字通信系统的中频调制方案。该方案基于正交调制、DDS、数字内插技术和ARM微处理器技术，使用数字上变频器AD9856和ARM926EJ—S微处理器S3C24AOA设计通用硬件平台，可以生成多种中频调制信号，可用于移动通信和数字化电台等通信系统项目的研发和验证。 |
| 关键词: 数字通信系统 数字正交上变频器 调制器 中频调制 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:February 21, 2006Revised:May 29, 2006 |
| 基金项目: |
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| An IF Digital Orthogonal Modulation Scheme Based on AD9856 and ARM926EJ-S Microprocessor |
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| Abstract: |
| Based on quadrature modulation, DDS, digital interpolation and ARM microprocessor, an IF modulation scheme is introduced ,which is implemented on a general hardware platform using the quadrature digital upconverter AD9856 and ARM926EJ -S microprocessor S3C24AOA. It can generate a variety of IF modulation signals and can be used in the research and development of many communication systems such as mobile communication and digitized radio. |
| Key words: digital communication system quadrature digital upconverter modulator IF modulation |
