Finally , take example for a non - linear function , method mentioned in this paper is used to design wavelet neural network to approximate this function . the computer simulations confirm the method that is brought out in this paper is useful , and prove that wavelet neural network has not only fast convergence and better precision of approximation , but also good capability of forecasting and escaping error 最后，对于一个实际的非线性函数，用本文介绍的方法来设计小波神经网络来逼近函数，仿真结果表明该方法的有效性，并且表明小波神经网络在函数逼近上，网络的收敛速度快，逼近精度高的特点，并且网络具有很好的泛化能力和容错性。
In the aspect of detection and high precision estimation of seafloor backscattering , algorithms of fast convergence of energy center and correlation of eigen - replica were developed . also studded were processing methods of weighted mean time ( wmt ) and bearing direction indicator ( bdi ) based on fft beam forming as well as high precision detection and estimation of time of arrival ( toa ) and direction of arrival ( doa ) using split beams phase difference detection technique 围绕海底反向散射信号的高精度检测和估计技术，开发了快速能量中心收敛算法和特征模型相关算法，研究了基于fft波束形成的加权时间平均与方位指示处理方法，并讨论了利用分离波束相位差检测技术的海底反向散射信号到达时间( toa )和到达方向( doa )的高精度检测与估计方法。
Then an improved hybrid model with fast convergence rate , good performance based on combination of the genetic algorithm and the bp algorithm is presented by improving real coding , genetic operators etc . finally , the prediction models of nn and fnn ( fuzzy neural network ) are tested in shield tunneling , and the experimental results show the model has the higher forecasting accuracy 针对bp算法存在的问题，将遗传算法应用于神经网络，并将改进的神经网络模型及模糊神经网络用于盾构推进时地表变形量和变形因素之间的非线性映射关系的建立，进而应用于地表沉降的变形预测和预报。实例表明此模型和方法的有效性和准确性。
In this paper , a new interference - space - based blind adaptive mmse linear detector and the corresponding tracking algorithm based interference correlation matrix is proposed for mai in cdma wireless celluar communication system . analysis and simulation illustrate that the proposed blind multiuser detector has lower computational complexity , faster convergence and stronger robust with respect to imprecise knowledge of the received signature waveform of user of interest 围绕着cdma无线蜂窝移动通信系统中的多址干扰( mai )抵消问题，本论文在现有盲自适应多用户检测技术基础上，提出了一种新的基于干扰空间线性mmse盲自适应多用户检测器及其相应的基于干扰自相关矩阵c _ 1跟踪算法。
