For the underwater image of swimming pool, its S/ N is low and the edge is fuzzy. 由于泳池水下图像受水波干扰较为严重。
Adaptive Acquisition Algorithm for Low S/ N DS/ SS Navigation Signal 低信噪比直序扩频导航信号的自适应捕获算法研究
The listing should include the part number ( P/ N), serial number ( S/ N), name or description, TSO, and airplane tail number ( ATN)( fig.1). 清单应当包括件号(P/N)、序号(S/N)、名称或描述、TSO和飞机机尾号(ATN)(见图1)。
The results show that the S/ N ratio of shot recorders is increased, the quality of velocity spectrum is improved and the effect of stacked section is obvious better. 实际地震资料处理结果表明,单炮记录信噪比明显提高,速度谱质量得到改善,叠加剖面效果明显。
Engineering Research to Enhance the S/ N Ratio and Resolution of Seismic Data Acquired from Middle and Deep Layer in Western Depression of Liaohe Basin 提高辽河西部凹陷中深层地震资料信噪比和分辨率技术研究
Improve Speaker Identification Performance by Integrating Characters under Noisy Conditions In decomposed eigen subspace, by means of eigen extraction, noise is eliminated and signal to noise ( s/ n) ratio enhanced. 在分解后的特征子空间中进行特征提取来消除相干和随机噪声,提高地震记录的信噪比。
Quantitative computation and comparison of S/ N ratio in seismic data 地震资料信噪比定量计算及方法比较
The state space reconstruction of chaotic signals having low S/ N ratio was investigated by means of Singular System Analysis ( SSA). 利用奇异系统分析方法研究了低信噪比混沌信号的相空间重构。
The S/ N evaluation of bin-divisible processing for high density seismic data 高密度细分面元处理资料的信噪比评价
It is stressed that the relationship between prestack processing S/ N and resolution is important. 强调了叠前处理信噪比与分辨率关系的重要性。
Outstanding S/ N ratio is achieved, providing clean audio in SSB, AM and FM. 优秀的S/N比,是实现,提供清洁的音频,办学团体,AM和。
The CDP reflection gather model considering AVO and PVO effects is constructed, and the method of estimating wavelet, AVO, PVO, and S/ N ratio are given. 建立了包含AVO和PVO影响的CDP反射波道集模型,并给出了子波、AVO、PVO和信噪比估计的方法。
The result occurred because signal estimation effectiveness depends on the S/ N ratio of input data too much. 这是由于信号估计的有效性过分依赖于输入数据的信噪比本身所致。
This method requires assured composite wave characteristics and high S/ N ratio of the repeated stack interval. 目前运用较广泛的方法是,利用2种震源资料的重复叠加段求取匹配算子,然后进行匹配滤波,但该方法要求重复叠加段有可靠的波组特征和较高的信噪比。
The optical modulation characteristics, differential gain ( DG), differential phase ( DP) and signal-to-noise ratio ( S/ N) are described as well in this paper. 文中论述了光调制特性、微分增益(DG)、微分相位(DP)、信噪比(S/N)等重要问题。
In this paper, maximum S/ N polarization technology and its application to communication is introduced. 本文在介绍移动通信系统分集接收的概念和分集技术分类的基础上,着重论述了极化分集接收技术,阐述了最大S/N合成器的实现方案。
The S/ N ratio of seismic data should be above 2; 地震资料的信噪比要达到2以上;
We have improved fringe search method for processing VLBI data at low signal-noise ratio ( S/ N). 为了处理低信噪比(S/N)的VLBI观测数据,我们对现有的条纹搜索方法做了改进。
Highresolution and high fidelity couldn't realize without higher S/ N ratio. 没有一定的信噪比,高分辨率和高保真就不可能实现;
The signal average method was used in order to increase the S/ N ratio, and the optimum sweep time and average times were experimentally determined. 为了提高信噪比,采用了信号平均技术,并通过实验确定了最佳采样时间和平均次数。
Noise elimination before and after stacking is necessary in processing low S/ N seismic data. 在处理一些低信噪比地震资料时,叠前和叠后的去噪必不可少。
Acquisition range for hedge-hopping target from the curve by accumulative S/ N of the radar. 根据雷达的积累信噪比,可用该曲线比较精确地估算出跟踪雷达对超低空目标的最大捕获距离。
The ratio of signal to noise ( S/ N) is greatly improved through the phase sensitivity detection. 而通过采用相敏检测的方法又可大大提高信噪比。
Experimental results showed, the S/ N and quality of radarimages had been significantly improved. 实验结果表明,提高了雷达图象的信噪比和改善了图象的质量。
Improving the S/ N ratio can only improve seismic-geologic interpretation ability and cannot improve identifying capability fundamentally. 提高地震资料的信噪比只能提高地震地质解释能力,不能从根本上提高分辨力。
High S/ N ratio fluorescence spectrum of solution Rhodamine 6G in ethanol was collected and detected. 采集和检测了若丹明6G乙醇溶液的高信噪比荧光谱,最低检出限达到10-8mol/L。
The Analysis of Influence of S/ N on Angle Accuracy for Amplitude Comparison and Vector Processing S/N对比幅测角和矢量测角的精度影响的分析
Pre stack noise elimination is a key measure to improve the S/ N ratio and stack quality. 叠前去噪是提高资料信噪比、改善叠加效果的一个关键手段。
Through the calculated analysis of S/ N and slope, optimizing the design parameters and make the system robust, make it insensitive to noise. 通过对信噪比和斜率的计算分析,优化设计参数,使系统最稳健,对噪音不敏感。