Control on under-actuated systems has extensive application in the engineering technology fields, for example, space station, nuclear power station, space robot etc.

The Preliminary Study of Space Nuclear Power Propulsor of D-~ 3He Advanced Fuel Fusion

D-~3He先进燃料聚变空间核动力推进器的可行性探索

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The output signal space was decomposed into signal space and noise space by SVD ( singular value decomposition) method, then the modal parameters were estimated directly.

运用SVD（singular value decomposition）分解将含噪声的输出信号空间分解为信号空间和噪声空间，然后直接估计结构的模态参数。

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At the same time take full advantage of vertical climbing plants is to increase the greening of urban green space area, landscaping Space, noise dust, cooling and humidification, improved climate, is an important way to maintain the urban ecological balance.

充分利用攀援植物进行垂直绿化是增加城市绿地面积，美化空间、隔音防尘、降温增湿、改良气候、是保持城市生态平衡的重要途径。

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Methods for measuring and analyzing the infrasound noise field in the atmosphere have been expounded. A set of space correlation radii of noise corresponding to wind speed 4 m/ s has been obtained, which can be taken as the tentative basis for an acoustical array design.

本文阐述了大气次声噪声场的测量和分析方法，得到一组风速为4m/s噪声的空间相关半径，它可以作为声阵设计的初步依据；

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Scale space filter can restrain noise and recognize edge reliably in big scale, and can locate the edges accurately in small scale, at last get the true positions of edge by focus processing from big scale to small scale.

尺度空间滤波能在大尺度下抑制噪声可靠的识别边缘，在小尺度下精确定位，最后由粗及精地进行边缘聚焦而得到边缘的真实位置。

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Since the early-1980s birth, near field acoustical holography ( NAH) has become a powerful tool of the reconstruction of three-dimensional space sound field and noise source separation and identification.

自从20世纪80年代近场声全息技术诞生以来，这项技术已逐渐成为重建三维空间声场和识别噪声源的有力工具之一。

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For phase space reconstruction of ship-radiated noise, using auto correlation function and mutual information to select the delay-time, and using False Nearest Neighbors method to select the embedding dimension.

6研究了舰船辐射噪声的相空间重构。从自相关函数及互信息嫡两个方面讨论了相空间重构中延迟时间的选择。

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Based on discussion of multi-feature recognition method for chaotic time series, the paper studies feature extraction of chaotic time series and its application in multi-variable phase space reconstruction under certain noise background.

本文在探讨混沌时间序列多特征识别方法的基础上，研究一定噪声背景下，混沌序列的特征提取方法及其在多变量相空间重构中的应用。

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A Phase Space Analysis of Signal Noise Received by an Oceanic Lidar System

海洋激光雷达系统接收信号噪声的相空间分析

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A Revised MUSIC Method for Fixing Space Position of Mechanical Noise Sources

用修正的MUSIC法确定机器多噪声源的空间位置

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We analyze the local linear projective algorithm based phase space reconstruction in noise reduction techniques of nonlinear time series. How to choose the main parameters used in the method is also studied in this paper.

探讨了基于相空间重构的局部线性映射算法在非线性时间序列降噪技术中的应用，并给出了算法中主要参数的选取方法。

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The bell ring is so low that the workers can't hear in the large-scaled working space with strong noise.

振铃声难以保证在大范围、强噪声的生产场所下的工作人员接听到。

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Time delay method was used to reconstruct the phase space of underwater noise time series based on nonlinear dynamics theory.

以非线性动力学理论中的相空间重构理论为基础，利用延时法对水下噪声时间序列信号进行了相空间重构。

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One of the main studies for algorithms of DOA estimation is how to accurately estimate signals' orientation under the background noise, while the background noise is various, ranging from the simple white Gaussian noise circumstance to the complex unknown space colored noise circumstance.

波达方向估计的主要研究内容之一是如何从背景噪声中准确地估计信号的方位（而这些背景噪声各种各样，大致从简单的高斯空间白噪声环境到复杂的未知空间色噪声环境）。

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Without any pre-knowledge about noises and based on the establishment of cross high order accumulation Yule-Walker formula, an effective methed is presented to determine the signal vector space and noise vector space by characteristic decomposition.

不提供任何噪声的先验信息的条件下，在建立互高阶累积量的Yule-Walker方程的基础上，通过特征分解，建立信号矢量空间与噪声矢量空间。

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Through this paper, it can be concluded that research from the design, manufacturing, and reliability test, a set of complete space low noise amplifier development plan, for its space application provides the basis.

通过本文研究，可以得出从设计、制造到可靠性验证等一套完整的低噪声放大器开发方案，为其宇航应用提供依据。

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In the low light level image processing, the time and space domain noise in the signal not only limits the lowest illuminance of the system but also make the image show random glitter.

在微光像增强器成像中，迭加在图像上的时空域噪声，不仅限制系统可工作的最低照度，而且使显示图像有随机蠕动颗粒闪烁的外观。

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To save space, noise word references are not maintained within the index, but they are stored in a customizable list by language.

要保留空格，噪声码基准并没有保存在索引中，但是它们按照语言保存在可制订的列表中。

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The concept has introduced in the paper based on Filtered-XLMS algorithm of LMS which pointed out that it is the main algorithm in closing space noise active control.

本文对基于LMS算法的多通道Filtered-XLMS算法的思想作了介绍。指出此算法是封闭空间噪声主动控制的主要算法。

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A High Resolution Direction Finding Algorithm Based on Mode Space Noise Manifold for Uniform Circular Arrays

基于均匀圆阵模式空间噪声流形的高分辨测向算法

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