Excel被认为是当前功能强大、使用方便的电子表格软件。从1993年起,Excel就开始支持Visual Basic for Applications(VBA).VBA是一款功能强大的工具,它使Excel形成了独立的编程环境。重力固体潮校正的计算改进前,重力计算中都是通过basi...Excel被认为是当前功能强大、使用方便的电子表格软件。从1993年起,Excel就开始支持Visual Basic for Applications(VBA).VBA是一款功能强大的工具,它使Excel形成了独立的编程环境。重力固体潮校正的计算改进前,重力计算中都是通过basic语言的程序设计在dos环境下来完成的。在大量应用windows的今天,dos的应用已经没有象windows那样普及。如果不能了解dos环境下的命令语句,根本就不能完成重力的计算工作。为此作者等对固体潮校正的计算进行改进,改进后达到了简单、高效的效果。展开更多
This paper presents a deep neural network(DNN)-based speech enhancement algorithm based on the soft audible noise masking for the single-channel wind noise reduction. To reduce the low-frequency residual noise, the ps...This paper presents a deep neural network(DNN)-based speech enhancement algorithm based on the soft audible noise masking for the single-channel wind noise reduction. To reduce the low-frequency residual noise, the psychoacoustic model is adopted to calculate the masking threshold from the estimated clean speech spectrum. The gain for noise suppression is obtained based on soft audible noise masking by comparing the estimated wind noise spectrum with the masking threshold. To deal with the abruptly time-varying noisy signals, two separate DNN models are utilized to estimate the spectra of clean speech and wind noise components. Experimental results on the subjective and objective quality tests show that the proposed algorithm achieves the better performance compared with the conventional DNN-based wind noise reduction method.展开更多
An improved algorithm for symbolic computation of Hirota bilinear forms of KdV-type equations withlogarithmic transformations is presented.In the algorithm,the general assumption of Hirota bilinear form is successfull...An improved algorithm for symbolic computation of Hirota bilinear forms of KdV-type equations withlogarithmic transformations is presented.In the algorithm,the general assumption of Hirota bilinear form is successfullyreduced based on the property of uniformity in rank.Furthermore,we discard the integral operation in the traditionalalgorithm.The software package HBFTrans is written in Maple and its running effectiveness is tested by a variety solitonequations.展开更多
文摘Excel被认为是当前功能强大、使用方便的电子表格软件。从1993年起,Excel就开始支持Visual Basic for Applications(VBA).VBA是一款功能强大的工具,它使Excel形成了独立的编程环境。重力固体潮校正的计算改进前,重力计算中都是通过basic语言的程序设计在dos环境下来完成的。在大量应用windows的今天,dos的应用已经没有象windows那样普及。如果不能了解dos环境下的命令语句,根本就不能完成重力的计算工作。为此作者等对固体潮校正的计算进行改进,改进后达到了简单、高效的效果。
基金partially supported by the National Natural Science Foundation of China (Nos.11590772, 11590770)the Pre-research Project for Equipment of General Information System (No.JZX2017-0994/Y306)
文摘This paper presents a deep neural network(DNN)-based speech enhancement algorithm based on the soft audible noise masking for the single-channel wind noise reduction. To reduce the low-frequency residual noise, the psychoacoustic model is adopted to calculate the masking threshold from the estimated clean speech spectrum. The gain for noise suppression is obtained based on soft audible noise masking by comparing the estimated wind noise spectrum with the masking threshold. To deal with the abruptly time-varying noisy signals, two separate DNN models are utilized to estimate the spectra of clean speech and wind noise components. Experimental results on the subjective and objective quality tests show that the proposed algorithm achieves the better performance compared with the conventional DNN-based wind noise reduction method.
基金Supported by Scientific Research Fund of Zhejiang Provincial Education Department under Grant No.20070979the National Natural Science Foundations of China under Grant Nos.10675065 and 10735030+1 种基金the Scientific Research Found of Ningbo University under Grant No.XKL09059the K.C.Wong Magana Fund in Ningbo University
文摘An improved algorithm for symbolic computation of Hirota bilinear forms of KdV-type equations withlogarithmic transformations is presented.In the algorithm,the general assumption of Hirota bilinear form is successfullyreduced based on the property of uniformity in rank.Furthermore,we discard the integral operation in the traditionalalgorithm.The software package HBFTrans is written in Maple and its running effectiveness is tested by a variety solitonequations.
