CAJ | 학술논문

阵列流型是传声器阵列信号处理的重要参数，直接影响阵处理性能。阵列流型与传声器的一致性、阵列结构和使用环境等密切相关，已有方法按照频率和角度逐一完成测量，但耗时是密集频率宽带测量的突出问题。论文提出了一种传声器阵列流型宽带测量方法：通过分析宽带信号在离散傅里叶变换之后各频率数据的相关性，提出根据非相关性原则构造宽带测量源信号，并在数据处理中运用FFT算法，综合实现了阵列流型的快速测量。通过在半消声室内的实测证明了论文方法的高效性。方法具有重要的工程应用价值。
진렬류형시전성기진렬신호처리적중요삼수，직접영향진처이성능。진렬류형여전성기적일치성、진렬결구화사용배경등밀절상관，이유방법안조빈솔화각도축일완성측량，단모시시밀집빈솔관대측량적돌출문제。논문제출료일충전성기진렬류형관대측량방법：통과분석관대신호재리산부리협변환지후각빈솔수거적상관성，제출근거비상관성원칙구조관대측량원신호，병재수거처리중운용FFT산법，종합실현료진렬류형적쾌속측량。통과재반소성실내적실측증명료논문방법적고효성。방법구유중요적공정응용개치。
Array manifold is one of the most important parameters in microphone array signal processing, which affect the performance of detecting range and precision widely. Array manifold is related to property consistency of microphones,array structure,operating environment and etc. And already there’re methods used to measure,which are exerted step by step according to frequencies and angles shifting in series,while it’s time consuming for broad-band measuring. A new method for fast measuring is proposed in this paper:The testing broadband source is com-posed of multiple sine waves, and each of frequencies is uncorrelated with each other after processed by discrete Fourier transform;the waves on microphone array are processed by FFT algorithm and then get array manifold easily. Experiment in semi-anechoic chamber proved that:the method revealed in this paper can fast measure broadband manifold of microphone array accurately.