| 摘要: |
| 增量调制方式在许多领域有着广泛的应用,特别是在军事通信领域里,由于其具有极强的保密性、电路实现简单等优势,被大量使用;而DSP在数字信号处理中能够胜任密集型运算和特殊处理,有着不可替代的作用,使其成为语音处理的首选技术.文中首先对 DSP技术的发展和增量调制的原理进行了分析,并在高速DSP芯片TMS320 C6701上实现了增量调制解码的算法,实践证明提高了系统的性能,达到了系统设计的要求. |
| 关键词: 语音编码/解码 增量调制 自动增益控制 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:January 20, 2006Revised:May 10, 2006 |
| 基金项目: |
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| DSP-based Delta Modulation Decoding Algorithm and its Implementation |
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| Abstract: |
| Delta modulation(DM) is widely used in many fields,especially in military communication systems,because of its powerful security and simple circuit implementation.DSP is the first choice in the voice processing due to its unsurpassable capability of compression calculation and special processing.This paper makes a brief analysis of the development of DSP technology and the principle of DM,and gives the detailed algorithm of DM decoding based on the high-speed DSP chip TMS320 C6701.The results testify the improvement of system and satisfy the demand of system design. |
| Key words: voice coding/decoding,delta modulation(DM),auto gain control(AGC), |
