基于DSP的声定位智能引信实时性研究 |
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引用本文: | 赵元黎,代攀,宋燕燕.基于DSP的声定位智能引信实时性研究[J].弹箭与制导学报,2010,30(2). |
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作者姓名: | 赵元黎 代攀 宋燕燕 |
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作者单位: | 郑州大学物理工程学院,郑州,450001 |
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摘 要: | 实时性是评定声定位智能引信性能的重要指标。分析了DSP芯片、定位阵列和定位算法三个影响智能引信实时性的因素。对比了采用TI库函数和C语言完成互相关算法和FFT算法所需的时钟周期数,证明库函数效率高,实时性好,具有很明显的优势。结果表明使用库函数可以在ms级完成广义互相关算法,并通过对比各种加权函数的耗时,为加权函数和采样点数的选择提供依据。
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关 键 词: | 声定位 库函数 实时性 广义互相关 |
Research of Real-time of Acoustic Localization Intelligent Fuze Based on DSP Device |
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Abstract: | Real-time is a very important indicator to assess performance of acoustic positioning smart fuze.Analysis three factors,the DSP chip、location array、location algorithm,which impact smart fuze's real-time.Compare the number of clock cycles required in the case of using TI's own library functions and C language to complete correlation algorithm and FFT algorithm.Proving that library function is efficient,good real-time,and have a very distinct advantage.Using library functions can complete generalized cross-correlation algorithm in ms-class,and by comparing the time-consuming of various weighting functions,provide the basis for the choice of weighting function and sampling stints. |
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Keywords: | DSP DSP acoustic positioning DSPLIB real-time cross-correlation |
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