noise energy
英 [nɔɪz ˈenədʒi]
美 [nɔɪz ˈenərdʒi]
n. 噪声能量
双语例句
- Regularized Iris Image Restoration Algorithm of Noise Energy Estimation Based on Discrete Quadrature Direction Wavelet Transform
基于离散多方向小波变换估计噪声能量的正则化虹膜图像恢复方法 - Method of Ship-radiated Noise Energy Feature Extraction base on Multi-resolution Analysis
基于多分辨分析的舰船噪声能量特征提取方法 - Accord-ingly, the conception of noise energy equilibrium is advanced to remove linear nois-es, receiving quite good effect.
应用平衡噪音能量的方法去除线性干扰，可获得较好的效果。 - In the plan mentioned, FPGA may complete to the high-speed AD chip sampling control, read the sampling value, and compute commom-mode current noise energy value and gives the value to DSP.
所提方案中，FPGA可完成对高速AD芯片的采样控制、读取采样值、计算共模电流的噪声能量值并将该值反馈给DSP。 - By measuring and transforming vehicle flow and vehicle reference radiation noise energy in Haikou, a macroscopic calculation method for the total traffic sound energy was discussed.
通过车流量实测和等效车流量转换、车辆基准辐射噪声声压级实测和声功率级转换的方法计算城市路网交通噪声总声能量。 - This paper is intended to propose a new concept, the longitudinal distribution of source intensity spectrum of ship radiated noise, to exhibit the spatial and spectral distributions of the noise energy and the diverse sound signature at some special sections of ships.
建议用舰船的噪声源强度谱纵向分布特性描述舰船辐射噪声能量沿舰船纵向及频域的二维分布，探讨舰船不同部位辐射噪声的源强度和功率谱特征。 - And then estimating the noise energy more accurately by increasing the data record length and the accumulating time.
通过增加数据长度和累加次数的方法更精确的估计噪声能量。 - Edge jitter of slope overload signal in delta modulation is analyzed theoretically, the average edge jitter noise energy formula is derived and a method of reducing edge jitter is presented.
本文在理论上分析了△调制中斜率过载信号的边沿抖动，导出了平均边沿抖动噪声能量公式，并给出降低边沿抖动的方法。 - Study of the lower noise energy drive ball based on the switch capacitor in the ultrasonic level meter
基于开关电容能量球的低噪声超声测距仪的研究 - Electromagnetic absorbing materials with high frequency and high loss are required to absorb the noise energy, aiming at restraining the electromagnetic leak induced by high-frequency emission noise.
为了抑制高频发射噪声引起的电磁波泄漏，就需要开发频率高损耗大的电磁波吸收材料，有效地吸收噪声能量。 - On the basis of analyzing the discrete multi-tone system structure, an adaptive bit swap algorithm which makes use of the error signal arising from symbol decision for estimating noise energy has been presented.
在分析离散多频调制系统结构的基础上，提出一种利用符号判决后产生的误差信号估计噪声能量，并以此为依据进行自适应比特交换的算法。 - To overcome this difficulty, this paper proposes a new method which utilizes noise energy, instead of its variance, to perform image denoising based on Principle Component Analysis ( PCA) in the wavelet domain.
提出了一种采用主分量分析（PCA）提取小波系数的主要特征，通过对小波域中噪声能量的估计来实现去噪的新方法。 - This paper analyze the relation between the variation of underwater noise energy received by passive sonar systems and the motion information of targets. A method is given to extract the motion of targets from the variation of underwater noise energy.
在对被动噪声声纳接收的噪声能量随时间的变化规律分析的基础上，从理论上分析噪声能量的变化与目标运动参数关系，给出了其中所含目标运动信息的提取方法。 - The algorithm uses this discrimination information to update the noise energy in all frames including the speech frames, so it could better trace changes in the noise-energy.
算法通过利用鉴别信息，能够在包括语音帧在内的所有帧中更新噪声的能量，从而更准确地跟踪噪声能量的变化。 - This paper firstly presents two criteria: residual noise energy and signal distortion criterion to evaluate the degrees of noise suppression and signal distortion.
本文首先提出了客观评价噪声压缩效果的两个指标：残余噪声能量和信号畸变指标。 - Usually, single vector sensor will obtain infinite gain if noise energy flow can be counteracted in whole space.
在理想情况下，若噪声场为各向同性噪声场，则通过声能流长时间积分，单个矢量水听器便可获得无限大的增益。 - Based on oversampling and noise shaping techniques, ∑-△ modulator pushes most of the noise energy to high frequencies out of signal baseband, then, the noise energy is filtered by the subsequent decimation filter, thereby gaining high SNR.
∑&Δ调制器采用过采样和噪声整形技术，将信号频带内的噪声功率推至高频范围内，然后由降采样滤波器将高频噪声滤除，从而提高了信号频带内的信噪比。 - First, the noise energy is tracked to detect the unstable signal.
首先通过跟踪平稳噪声能量，检测能量变化非平稳的信号； - With the increase of the number of the bistable systems in the cascaded system, the low frequency area where most of the noise energy is collected will be narrowed gradually, and hence the signal peak is easily reduced and submerged in noise.
级联双稳系统级数的增加，会使噪声能量集中的低频区域变窄，信号谱峰易被压缩和受到噪声干扰。 - The variety character of image and noise energy are studied.
研究了在图像的扩散处理中，图像和噪声的能量变化过程与特征。 - The inherent mechanism of stochastic resonance is the signal and noise are affected by the nonlinear system, part of the noise energy has been converted into signal, resulting in stochastic resonance, as a result, the weak signal has been strengthened.
随机共振其内在机理实际上是信号和噪声通过非线性系统的协同作用，一部分噪声能量被转化到信号上，产生随机共振，从而使微弱信号得到加强。 - Experiment show that this method can dynamically track the noise energy and set the wavelet threshold in the time-varying colored noise environment, providing an effective guarantee to the follow-up wavelet de-noising process. 3.
实验表明，本文的阈值估计算法能够在有色时变噪声环境下，动态跟踪噪声能量并设置阈值，为后续的小波阈值函数去噪方法提供有效保证。 - The channel samples, which are larger than the optimal threshold, contain almost all the channel information. While the ignored channel samples contain noise energy only.
大于最佳阈值的信道抽样点包含了几乎所有的信道信息，而忽略掉的信道抽样点只含有噪声能量。 - Form the distribution of wavelet energy on every scale, we can see that the noise energy is concentrated on the first three decomposing scales and the de-noising for wavelet analysis can be carried out on the three scales.
从小波的纹理能量在各尺度分布上得出，噪声能量主要集中在前三个分解尺度上，小波分析的去噪研究可在前三个尺度下分析进行。 - Different from the traditional signal detection method, stochastic resonance technology can bring part of the noise energy transform into signal energy, so that it can enhance the signal intensity, improve signal SNR, and achieve the purpose of the weak signal detection.
不同于传统的信号检测方法，随机共振技术可将部分噪声能量转化为信号能量，从而增强信号强度，提高信号的信噪比，以达到检测微弱信号的目的。 - Electromagnetic absorbing materials with high magnetic loss in the high frequency range are required to absorb the noise energy, aiming at restraining the electromagnetic interference.
为抑制电磁干扰现象，需要开发应用频率高电磁损耗大的吸波材料，有效吸收电磁噪声能量。 - This paper analyzes the system transfer function and noise energy in detail. Optimum designs of fundamental circuits of the modulator are also carried out.
本文详细分析了它的系统传输函数和噪声能量，对调制器中的基本组成电路进行了优化设计。 - Stochastic resonance is the nonlinear phenomenon of cooperation between the input signal, the additional noise and nonlinear systems, in which part of noise energy can be transformed into signal energy.
随机共振是非线性系统、输入信号和噪声之间出现协作效应，发生部分噪声能量转变为信号能量的一种非线性现象。 - The cavitation noise datum is decomposed with three-scale and 8 wavelet packages to compute the noise energy of different standoff. The wavelet packages with the signals of cavitation noise are found.
对空化噪声数据进行三层小波分解，计算其8个小波包在不同靶距下各自的能量数值，找出具有空化噪声信号的小波包。 - Result show that: the noise energy could be dispersed and the vibration signal characteristics could be highlighted by increasing the dimension of attractor track matrix ( the order of SVD) in the case of small signal noise ratio.
结果表明：在信噪比较小的情况下，通过增加吸引子轨迹矩阵维数（奇异值分解阶次）的方法，可以分散噪声能量，凸显振动信号特征。