| 基于TMS320C5509的数字内插波束形成器的实现研究 |
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| 引用本文： | 杨志兴,尹雪飞,陈克安,邢超.基于TMS320C5509的数字内插波束形成器的实现研究[J].电声技术,2009,33(10):73-77. |
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| 作者姓名： | 杨志兴 尹雪飞 陈克安 邢超 |
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| 作者单位： | 1. 西北工业大学电子信息学院,陕西,西安,710072
2. 西北工业大学航海学院,陕西,西安,710072 |
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| 摘 要： | 针对数字波束形成中高精度定向需要较高采样频率的要求，研究了1种数字内插波束形成技术，并在TMS320C5509上予以实现。结合C55x系列DSP结构的特点，对比分析了C54x系列和C55x系列循环缓冲区实现的异同．给出了E55x上循环缓冲区实现的代码-y．例及优化说明。最后在软件仿真器上进行了仿真，证实了程序的正确性和数字内插技术的有效性。
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| 关 键 词： | 数字内插 波束形成 TMS320C5509 循环寻址 |
Research on Implementation of Digital Interpolation Beamformer Based on TMS320C5509 |
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| YANG Zhi-xing,YIN Xue-fei,CHEN Ke-an,XING Chao.Research on Implementation of Digital Interpolation Beamformer Based on TMS320C5509[J].Audio Engineering,2009,33(10):73-77. |
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| Authors: | YANG Zhi-xing YIN Xue-fei CHEN Ke-an XING Chao |
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| Affiliation: | YANG Zhi-xing1,YIN Xue-fei1,CHEN Ke-an2,XING Chao2(1.Engineering of Electronics and Information,Northwestern Polytechnical University,Xi'an 710072,China,2.Engineering of Marine,China) |
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| Abstract: | Considering the needs of higher sampling frequency for high performance,a method of digital interpolation beamforming is analyzed and accomplished in TMS320C5509 DSP.Based on the characters of C55x,the difference of circular addressing between C55x and C54x is analyzed.The concrete code example of circular addressing and optimization specification are presented.The validity of the digital interpolation beamforming method is verified by simulation in the simulator of code composer studio. |
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| Keywords: | TMS320C5509 |
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