| 调频广播用数字立体声编码器的数字内插处理 |
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| 引用本文： | 詹柔莹,徐国鼐.调频广播用数字立体声编码器的数字内插处理[J].电子科技大学学报(社会科学版),2000(1). |
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| 作者姓名： | 詹柔莹 徐国鼐 |
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| 作者单位： | 电子科技大学宽带光纤传输与通信系统技术国家重点实验室!通信与信息工程学院成都610054 |
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| 摘 要： | 介绍了采用ＤＳＰ芯片ＴＭＳ３２０Ｃ５０及高速Ａ／Ｄ芯片实现的调频广播用的数字调频立体声编码器及其结构。研究了数字内插器的实现方法，讨论了基于凯泽窗的半带滤波器的设计步骤。该数字化方案不仅改善了音质，提高了立体声通道隔离度，而且减少了运算量，便于工程实现，并给出了实验测试结果。
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| 关 键 词： | 内插 调频立体声编码器 数字滤波 半带滤波器 |
Interpolating Process of Digital Stereo Encoder Applied in FM Broadcast |
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| Zhan Rouying, Xu Guonai.Interpolating Process of Digital Stereo Encoder Applied in FM Broadcast[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2000(1). |
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| Authors: | Zhan Rouying Xu Guonai |
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| Abstract: | The digital stereo encoder applied in FM broadcast is accomplished with DSP chip TMS320C50 and high-speed A/D chip. The method of digital interpolator in digital FM stereo encoder is proposed. This paper also discusses the design of digital filter based on Kaise window in detail, which is used to increase the sampling rate. This method not only improves the acoustic quality and the isolation level among stereo channels, but reduces the computation. The measuring results are also given in this paper |
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| Keywords: | interpolation: digital FM stereo encoder digital filter half-band Filter |
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