发明名称 |
METHOD AND APPARATUS TO REDUCE STATIC NOISE |
摘要 |
A method and device for attenuating wideband spurious noises to improve the signal-to-noise ratio of a tracked acoustic signal. Two sensors (1 and 2) are provided, one of which receives the disturbed tracked signal and the other the spurious noises, to feed a plurality of correlation modules (4) via as many spectrum-line filters (3) distributed throughout the useful bandwidth of sensor (1), each of said correlation modules (4) supplying a correction signal and the sum of said correction signals being subtracted from the signal given by sensor (1) to yield a noise-free tracked signal. The invention is applicable to acoustic reception systems used in noisy environments. |
申请公布号 |
DE3375745(D1) |
申请公布日期 |
1988.03.31 |
申请号 |
DE19833375745 |
申请日期 |
1983.09.06 |
申请人 |
SINTRA-ALCATEL SOCIETE ANONYME DITE: |
发明人 |
GARCONNAT, MICHEL;MORGANO, PHILIPPE |
分类号 |
G01S3/86;G01S7/536;G10K11/178;(IPC1-7):G10K11/16 |
主分类号 |
G01S3/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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