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Bathymetric uncertainty model for the L-3 Klein 5410 sidescan sonar.

機(jī)譯：L-3 Klein 5410側(cè)掃聲納的測深不確定度模型。

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The L-3 Klein 5410 sidescan sonar system acquires acoustic backscatter imagery and bathymetry data. A bathymetry uncertainty model was developed for this sonar to predict its performance against hydrographic standards set by the International Hydrographic Organization (IHO). Elements of the model not specific to this sonar were adapted from existing uncertainty models, and the remainder was calculated by comparing the 5410 bathymetry with a reference surface obtained from multibeam echosounder data. The sonar's angular uncertainty was solved for different bottom types with best results obtained over sandy bottoms, where, after removal of some system biases, the bathymetry met standards for hydrographic surveys Order 1 from 30° to 75° from nadir. The model predicts that the total propagated uncertainty at 20-m altitude meets IHO standards over a swath width equal to seven times the water-depth, with a central gap one water-depth wide for an ideal 5410.
機(jī)譯：L-3 Klein 5410側(cè)掃聲納系統(tǒng)可獲取聲學(xué)反向散射圖像和測深數(shù)據(jù)。為此聲納開發(fā)了一個(gè)測深不確定性模型，以根據(jù)國際水文組織（IHO）設(shè)定的水文標(biāo)準(zhǔn)預(yù)測其性能。不適用于該聲納的模型元素已從現(xiàn)有的不確定性模型中改編，其余部分則通過將5410測深儀與從多波束回波測深儀數(shù)據(jù)獲得的參考面進(jìn)行比較來計(jì)算。解決了不同類型底部的聲納角度不確定性問題，在沙質(zhì)底部獲得了最佳結(jié)果，在除去一些系統(tǒng)偏差后，測深法滿足了從最低點(diǎn)30°至75°的水文測量標(biāo)準(zhǔn)1階。該模型預(yù)測，在等于水深7倍的條帶寬度上，高度為20米的總傳播不確定性符合IHO標(biāo)準(zhǔn)，對(duì)于理想的5410，中心間隙為一個(gè)水深。

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