| 摘要 |
According to the invention, the method of detecting and locating sources of noise each emitting respective signals S<SUB>j </SUB>with j=1 to M, detection being performed using sensors each delivering a respective time-varying electrical signal s<SUB>i </SUB>with i varying from 1 to N, consists in taking the time-varying electrical signals delivered by the sensors, each signal s<SUB>i</SUB>(t) delivered by a sensor being the sum of the signals S<SUB>j </SUB>emitted by the noise sources, in amplifying and filtering the time-varying electrical signals as taken, in digitizing the electrical signals, in calculating the functional <maths id="MATH-US-00001" num="1"> <MATH OVERFLOW="SCROLL"> <MROW> <MROW> <MI>f</MI> <MO></MO> <MROW> <MO>(</MO> <MROW> <MSUB> <MI>n</MI> <MN>1</MN> </MSUB> <MO>,</MO> <MI>...</MI> <MO></MO> <MSTYLE> <MTEXT> </MTEXT> </MSTYLE> <MO>,</MO> <MSUB> <MI>n</MI> <MI>j</MI> </MSUB> <MO>,</MO> <MI>...</MI> <MO></MO> <MSTYLE> <MTEXT> </MTEXT> </MSTYLE> <MO>,</MO> <MSUB> <MI>n</MI> <MI>N</MI> </MSUB> </MROW> <MO>)</MO> </MROW> </MROW> <MO>=</MO> <MROW> <MUNDEROVER> <MO>∑</MO> <MROW> <MI>k</MI> <MO><></MO> <MN>1</MN> </MROW> <MSTYLE> <MTEXT> </MTEXT> </MSTYLE> </MUNDEROVER> <MO></MO> <MSTYLE> <MTEXT> </MTEXT> </MSTYLE> <MO></MO> <MSUB> <MI>R</MI> <MI>k1</MI> </MSUB> </MROW> </MROW> </MATH> </MATHS> with coefficients R<SUB>kl </SUB>being a function of the vectors n<SUB>j </SUB>giving the directions of the noise sources, and in minimizing the functional f in such a manner as to determine the directions n<SUB>j </SUB>of the noise sources.
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