- 會議論文
水中揚聲器寬頻域船艦螺槳訊號之複製量測分析
Experimental and Reproductive Analysis of the Broadband Model Ships Propeller Noise by an Underwater Speaker
並列摘要
The threats from the acoustic mines to the ships are mainly from their underwater acoustic noise, since the sounds are complicated coupled and come from many sources. In order to establish a feasible way to avoid the attacks from the acoustic mines, the decoys have to produce a similar ships underwater sounds. This study emphasized on the measurements and reproductive analysis of a combined deterministic and random propeller noise. The measurements were taken by two hydrophones at different locations in a reverberation tank, the signals were sampled by a digital tape recorder and replayed by an underwater speaker. The time and frequency domain signal functions such as autospectrum, crossspectrum, autocorrelation, cross correlation, signal to noise ratio, coherence, probability density function, cumulative probability distribution were compared with the original source sounds. The experience gained in the study can help processing technology of the real ships sound simulation.
延伸閱讀
- 張一屏、周康樂（1996）。諧振寬頻氣泡屏幕對船艦螺槳訊號之影響量測分析。載於中華民國振動與噪音工程學會（主編），中華民國振動與噪音工程學會論文集（頁39-50）。中華民國振動與噪音工程學會。https://doi.org/10.30028/CSSVANNUAL.199604.0039
- 趙儒民、郭建均、涂季平（2003）。網路化之單機多頻水下聲響控制及通訊系統開發。中國造船暨輪機工程學刊，22(1)，23-28。https://doi.org/10.29982/JTSNAME.200302.0003
- 劉嘉洪、王長志、陳柏台（2005）。水下偵測用電容式超音波換能器的分析與輻射聲場之模擬。中國造船暨輪機工程學刊，24(1)，9-18。https://doi.org/10.29982/JTSNAME.200502.0002
- 江中熙（2009）。水下音響信號識別之研究運用經驗模態分解法。海軍學術雙月刊，43(2)，114-125。https://doi.org/10.6237/NPJ.200904_43(2).0009
- 張國淵（2020）。An Adaptation of Space Decoration of Speaker Manufacturing Industry on the Sound Wave Perception and Sensibility〔碩士論文，逢甲大學〕。華藝線上圖書館。https://doi.org/10.6341/fcu.M0760531