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幅度分布特性
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  amplitude distribution
     To strengthen fuze ability of the anti jamming,this paper studies the average power of sea clutter and effective reflection coefficient of sea clutter, and analyzes the amplitude distribution and frequency distribution of sea clutter signal.
     为了加强引信的抗干扰性 ,该文研究了海面干扰信号的平均功率 ,海面有效反射系数的特性 ,海面干扰信号的幅度分布特性和功率谱特性。
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     In order to acquire the sea clutter feature of a low-altitude guard-radar, we make an analysis of the amplitude distribution of the really collected sea clutter radar data by means of the statistic model, regressive analysis and moments analysis, and obtain some useful conclusions, which provides a certain theoretic base forreal sea clutter cancellation.
     为获得某低空警戒雷达的海杂波特性,从统计模型和回归分析,以及矩分析情况等方面对实际采集的海杂波数据的幅度分布特性进行了分析,得出了一些有用的结论,为研究实际海杂波对消处理的新方法提供了一定的理论依据.
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     It analyses the amplitude distribution of SAR image,and obtain the diffusivity of nonlinear diffusion equation based on this. The new equation has large diffusivity at the background region with small amplitude to reduce speckle efficiently,but has small diffusivity at the target region with large amplitude to protect targets.
     通过分析SAR图像的幅度分布特性,建立基于SAR图像幅度信息的非线性扩散方程,使方程在幅值较小的背景区域具有较大的光滑作用以抑制噪声,而在幅值较大的目标区域光滑作用较小以保护目标特征。
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  “幅度分布特性”译为未确定词的双语例句
     The statistic characteristic of the spread spectrum radar signal is analyzed andstudied in this paper, the computing and sum-up of the distributing characteristic and thefluctuating rate of the range of clutter is emphasized on.
     本文对扩谱雷达信号的杂波统计特性进行了一定的分析和研究,着重对杂波的幅度分布特性和幅度的起伏率(功率谱特性)进行计算和总结。
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     The pilot symbols will increase the PAPR of OFDM signal in some cases.
     当我们利用梳状导频估计和跟踪信道的同时,梳状导频也改变了OFDM信号的幅度分布特性
短句来源
     First of all, it introduces the basic concept of clutter. Then it put the main emphasis on summarize the clutter properties of amplitude and spectrum, which clutter modeling follows.
     首先介绍了有关杂波的基本概念,之后,着重对杂波的幅度分布特性和幅度的起伏率(功率谱特性)进行计算和总结。 并以此为依据,进行杂波的建模。
短句来源
     This paper proposes a novel de-noising algorithm using a smoothing window with adaptively varying length. After the signal to be processed is segmented according to its properties in time domain and wavelet transform domain and interpolated into a higher sampling rate,a median and linear filter is employed to estimate the noise and then the estimate is removed out from the signal.
     本文提出了一种自适应变窗长平滑滤波的消噪算法 ,它依据信号在小波变换域和时域的幅度分布特性 ,把信号分成特性不同的时间片段 ,然后按片段信号的特性采用自适应变窗长平滑滤波的方法 ,对经过内插处理后的高采样率信号进行消噪处理 .
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     We establish a new observation model of α-stable distribution for low altitude detection. It is very concernment that fractional lower-order statistics based detection and estimation robust approach for radar target signals, so as to perform optimal detection under constant probability of false alarm. We point out a new trend for improving performance of track and detection on sea surface or low altitude target.
     对海杂波影响舰载雷达系统低空探测性能的原因进行了分析,并研究了海杂波信号幅度分布特性,提出使用α稳定分布建立雷达低空观测信号模型,指出研究基于分数低阶统计量的雷达目标信号检测与估计韧性替代算法的必要性,以实现恒虚警概率下的雷达目标最佳检测,探索提高岸基和舰载雷达对低空及海面目标探测和跟踪性能新的发展方向。
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  相似匹配句对
     OPTIMUM AMPLITUDE DISTRIBUTION OF CIRCULAR ARRAYS
     圆基阵最佳幅度分布
短句来源
     the spatial distribution is unstable and uneven;
     空间分布不稳定 ,变化幅度大 ;
短句来源
     Distribution of acceleration of gravity
     重力加速度的分布
短句来源
     The distribution of fimA genotype in periodontitis patients was detected by PCR.
     GINGIVALIS的分布;
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     Channel Characteristics;
     信道特性 ;
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  amplitude distribution
In the first case the shape of the amplitude distribution varies only slightly with time, while in the second it depends importantly on the parameters of the wave numbers and the Reynolds number.
      
When the parameters are such that one of the finite-amplitude waves is damped, its amplitude distribution rapidly evolves into the form characteristic of disturbances of the continuous spectrum of the linear stability problem.
      
Characteristics of the pulse amplitude distribution in the ionization fission chambers (IFC) used in the protection control system of the RBMK nuclear reactor were studied experimentally.
      
It is assumed that the amplitude distribution belongs to the domain of attraction of a certain maximum-stable law.
      
Use of Amplitude Distribution Parameters of Acoustic Emission Signals for Assessing the Strength of Structural Materials
      
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Discusses in some detail the simulation methods for two kinds of background noise of fuzes,viz.the Gaussian noise and the Rayleieh noise using the transformation and inverse transformation methods.It emphasizes on the analysis of the processes of amplititude distribution characteristic curves,the formation of power spectrum of the sequence and their theoretical basis.

详述了引信的两种背景杂波──即Gauss杂波、Rnyleigh杂波的模拟产生方法,主要为变换及逆变换法,着重分析了杂波序列的幅度分布特性、功率谱的形成过程及理论依据。

Fuze is greatly jammed by sea clutter and is likely to be exploded ahead. To strengthen fuze ability of the anti jamming,this paper studies the average power of sea clutter and effective reflection coefficient of sea clutter, and analyzes the amplitude distribution and frequency distribution of sea clutter signal. According to the distribution of sea clutter,this paper adopts the system of the stochastic signal formation and simulates the sea clutter in different conditions. It is useful for detecting anti...

Fuze is greatly jammed by sea clutter and is likely to be exploded ahead. To strengthen fuze ability of the anti jamming,this paper studies the average power of sea clutter and effective reflection coefficient of sea clutter, and analyzes the amplitude distribution and frequency distribution of sea clutter signal. According to the distribution of sea clutter,this paper adopts the system of the stochastic signal formation and simulates the sea clutter in different conditions. It is useful for detecting anti jamming property of radio fuze.

海面对引信的干扰很大 ,易造成引信弹道早炸。为了加强引信的抗干扰性 ,该文研究了海面干扰信号的平均功率 ,海面有效反射系数的特性 ,海面干扰信号的幅度分布特性和功率谱特性。根据干扰信号的分布特性 ,采用随机信号产生理论 ,仿真出不同海情时的海面干扰信号 ,可用来检验引信的抗干扰性。

This paper proposes a novel de-noising algorithm using a smoothing window with adaptively varying length.After the signal to be processed is segmented according to its properties in time domain and wavelet transform domain and interpolated into a higher sampling rate,a median and linear filter is employed to estimate the noise and then the estimate is removed out from the signal.The algorithm is particularly suitable for de-noising of segment-wise continuous or segment-wise stationary signals.Computer simulation...

This paper proposes a novel de-noising algorithm using a smoothing window with adaptively varying length.After the signal to be processed is segmented according to its properties in time domain and wavelet transform domain and interpolated into a higher sampling rate,a median and linear filter is employed to estimate the noise and then the estimate is removed out from the signal.The algorithm is particularly suitable for de-noising of segment-wise continuous or segment-wise stationary signals.Computer simulation results suggest that the algorithm has very good performance for de-noising.The algorithm is applied to anti-jamming in a spread spectrum communication system,and computer simulation shows that its performance is much better than that of setting-pulse-to-zero method in anti-pulse-jamming.

本文提出了一种自适应变窗长平滑滤波的消噪算法 ,它依据信号在小波变换域和时域的幅度分布特性 ,把信号分成特性不同的时间片段 ,然后按片段信号的特性采用自适应变窗长平滑滤波的方法 ,对经过内插处理后的高采样率信号进行消噪处理 .这种方法非常适合分段连续或分段平稳信号的消噪处理 ,仿真结果表明该算法具有良好的性能 .本文将该算法应用于扩频通信系统中脉冲干扰的消除 ,仿真结果说明这种算法与脉冲置零法相比 ,性能得到了较大的改善 .

 
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