| 引用本文： |
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邹 维,达新宇,谢铁城,等.改进的宽带信号有理数倍采样率变换结构[J].电讯技术，2012，52（11）： - . [点击复制]
- ZOU Wei,DA Xin-yu,XIE Tie-cheng,,et al.Rational sampling rate transformation for wideband signals[J].，2012，52（11）： - . [点击复制]
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| 摘要: |
| 针对现有的数字器件无法满足对宽带信号进行有理数倍采样率变换的问题，提出了
一种改进的宽带信号有理数倍采样率转换结构。在分析抽取器与内插器顺序的基础上，得出
了等效变换的前提条件，并结合多相滤波结构使改进的结构更具有实际应用价值。仿真实验
证明了改进后结构的有效性。通过与现有有理数倍采样率变换结构运算量对比分析表明，改
进后的结构的运算效率为传统结构运算效率的1/（LM）倍，其中L和M为变换过程中的内插因
子和抽取因子。 |
| 关键词: 数字接收机 宽带信号 有理数倍采样率变换 等效变换 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（60972042）；空军工程大
学电讯工程学院研究生论文创新基金资助项目(2011004) |
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| Rational sampling rate transformation for wideband signals |
| ZOU Wei,DA Xin-yu,XIE Tie-cheng,,WANG Shu |
| () |
| Abstract: |
| The current digital devices can not work in transformation of rational
rates in wideband signal. Based on this problem,an improved transformational structure of rational rates in wideband signal is presented.By analysing order of decimation and interpolation,the precondition of eq
uivalent transformation is obtained. The use of poly phase FIR has brought real
applied value in the improved structure. The simulation shows the effectiveness of the impro
ved structure. A comparative analysis of computation of transformational stru
cture of rational rates demonstrates the computation of the improved structure is 1/LM times of the traditional ones, in which L is represents the interpolation factor and M the decimation factor. |
| Key words: digital receiver wideband signal transformation of rational rates equivalent transformation |
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