| 1. | An survey of matched - field processing in acoustical signal processing 水声信号处理中匹配场处理技术研究的现状和展望 |
| 2. | High voltage static electricty field processing rice seed experimentation research on 高压静电处理水稻种子的试验研究 |
| 3. | Reeenly , with the development of underwater acoustic technology , matched field processing tecboques have been widely used in source localization and become one of the most boortan methods of acoustical signal processing 近年来,随着水声技术的不断发展,匹配场处理技术在声源定位中得到了广泛应用,已经成为水声信号处理的重要手段之一。 |
| 4. | Numerical results show that the mfpic outperforms the conventional pic . mfp - pic ( matched field processing with postbeamformer interference canceller ) is also proposed to cancel strong interference and detect the underwater weak target 同时,提出将匹配场干扰抵消应用于同方向强干扰背景下的弱目标检测,为解决平面波假设条件下无法克服的干扰抵消难题提供了新的技术途径。 |
| 5. | This dissertation studies mainly the inversion of ocean environmental parameters by mfp ( matched field processing ) . meanwhile , adaptive matched field passive localization in complex environment and discrete noise rejection with mfp are discussed 论文从浅海环境参数反演、复杂水声条件下的被动定位、以及匹配场用于空域离散噪声干扰抵消等三方面展开,对匹配场的理论、方法及实验验证进行了深入地探讨。 |
| 6. | Its arnplit ' ude and phase preserve peotation , single measurement or limited measurements could n ' t present the real character of sound field , so it will be more difficult to localize a source by matched field processing or get high accuracy of source localizaion 而声压是一个随机量,幅度和相位存在起伏,单次测量或少量有限次测量不能完整表达声场特性,这就很难准确进行匹配场声源定位,其精度得不到保证。 |
| 7. | 2 ) contraposed the poor openability and adaptability of field process control system , the data interface software and the client explorer for more server software have been developed . those software have been successfully applied in many projects 2 )针对现场过程系统中开放性差、适应性弱等问题,设计开发了基于opc技术的两个应用软件组件,即数据接口软件jxextend和通用多服务器客户端浏览器软件clienzview 。 |
| 8. | Based on the structure design of network computing , function , software of ncs , with using b / s model , o - o ( object - oriented ) , com / dcom , ole , fieldbus , java , web , software bus , plug - and - play technologies , the architecture and integrated model of ncs are built . the method of process model making is also proposed . to realize and enhance the field process ability , the conception of ip ( intelligent pro - node ) is proposed 本文在分析ncs基本需求、构建ncs的网络计算结构、功能结构、软件结构基础上,采用b s模式、面向对象技术、 com dcom 、 ole 、现场总线技术、 java技术、 web技术、软件总线和即插即用技术等,建立了ncs的体系结构和集成机制,提出了ncs的生产过程建模方法。 |
| 9. | Results rectify that matched field processing based on ray travel time delay is insensitive to the mismatch of sound speed proflle , although the mismatch of ocean bottom depth and receiver location is bad to matched field processing , different forms of cost fimctions could decline the sensitivity 计算结果表明,基于声传播时延的匹配场定位对声速分布失配是不敏感的。虽然接收基阵位置倾斜和海洋深度误差对匹配场处理影响较大,但只要选择适当的代价函数,可以得到克服。 |