Summary of marine sediment parameters 沉積物質(zhì)素參數(shù)一覽pdf
Levels of different sediment parameters in sediments in hong kong 2001-2005 2001年至2005年本港底層沉積物各項參數(shù)水平
The effect of sediment parameters on sound speed profile inversion using time differences of acoustic ray arrivals in shallow water 淺海中沉積層參數(shù)對多途到達(dá)時差反演聲速剖面的影響
The robustness and convergence of the algorithms are theoretically analyzed . the simulation and experimental results show that the algorithms are robust on the mismatch of system parameters and sediment parameters 從理論上分析了該算法的收斂性和穩(wěn)定性,該算法對一定范圍內(nèi)的系統(tǒng)參數(shù)失配和沉積層參數(shù)失配具有較好的穩(wěn)定性。
The effects of sediment parameters on the multi-path structure in shallow water are investigated in detail . a method of dividing the multi-path arrival time differences into groups is presented . theoretical analysis for the method is given 詳細(xì)研究了沉積層聲速、密度和衰減系數(shù)變化對淺海多途到達(dá)結(jié)構(gòu)的影響,提出了對多途到達(dá)時延差進(jìn)行分組的研究方法,從理論上對該方法進(jìn)行了研究。
The mean error of ssp inversion by this algorithm is less than that by mfi when the sediment parameters is known a priori . the ssp inversion by this algorithm shows a better match to the measured ssp in the step layer mbi反演ssp對沉積層參數(shù)失配具有較高的穩(wěn)定性,當(dāng)根據(jù)先驗(yàn)信息確定沉積層參數(shù)后,mbi反演ssp均方根誤差小于匹配場反演方法反演得到的結(jié)果,并且mbi反演ssp的溫躍層部分更接近實(shí)際測量ssp。
This dissertation studies the inversion of sound speed profile ( ssp ) in shallow water, including the effects of sediment parameters on the multi-path arrival structure, the algorithm of the ssp inversion using multi-path arrival time differences and the ssp inversion based on matched beam processing ( mbp ) . 1 采用理論分析、數(shù)值仿真方法研究了沉積層參數(shù)對淺海多途到達(dá)結(jié)構(gòu)的影響;推導(dǎo)和論證了到達(dá)時差反演淺海聲速剖面算法、提出和研究了用匹配波束處理反演淺海聲速剖面算法,并且應(yīng)用東中國海實(shí)驗(yàn)數(shù)據(jù)對這兩種算法進(jìn)行了驗(yàn)證。