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- ship noise spectrum 舰船噪声谱
- In addition, the envelope of ship noise waveform can be remodulated utilizing Hubert transform, and the spectrum components with line rotation frequency of propeller shaft are extracted effectively by bispectrum analysis. 另外，对于通过Hilbert变换解出的舰船辐射噪声包络进行双谱分析，有效地提取出了舰船轴频线谱。
- However, the noise spectrum of the ash exhauster always centers at low frequency range. 排粉机噪声呈明显的低频特性。
- EMD is used here as a signal separation tool to separate the tow ship noise from the received signal. 本文尝试利用经验模式分解方法分离出水听器接收信号中的拖船干扰噪声，从而达到消除干扰的目的。
- Based on the calculation of intensity noise spectrum, comparative study of XPM and SRS induced crosstalk is performed analytically and numerically. 在计算强度噪声谱的基础上,研究了互相位调制和受激拉曼散射的相互耦合并用于密集波分复用系统的噪声分析。
- At present,its main parameters are fundamental frequency,amplitude of vibration,perturbation(Jitter,Shimmer),noise spectrum(HNR,SNR,NNE),et al. 目前应用的主要参数有基频、振幅、微扰值(频率微扰、振幅微扰)、噪声谱(谐噪比、信噪比、标准化噪声能量)等。
- Multipath of the towing ship noise limits the performance of adaptive interference can-celing (AIC) which utilizes the fixed beam as a reference input. 拖曳线列阵声纳中,拖船噪声常常是影响声纳性能的重要因素之一。
- Two cases of power spectral intensity function for the earthquake acceleration imput at the base rock are considered: the white noise spectrum and filter white noise spectrum. 计算结果表明，1)在基岩输入地震加速度的功率谱为白噪声谱的情况下，土层的最大期望反应均有别于过滤白噪声谱时的相应值；
- Simulation of broadband ship noise with continuous spectrum 舰船宽带连续谱噪声的模拟
- We develop an auto-modulated scheme of a crucial parameter calculation by a noise spectrum estimation to ameliorate the issue of parameter setting in conventional adaptive threshold schemes. 本文针对传统语音活动侦测演算法中，需预先决定门槛值的方法作改良，并利用杂讯频谱自动计算于门槛值估测中所需之关键参数，改良过去演算法设定参数之方法。
- Tow ship noise is a nonstationary process with several characteristic properties, such as multi-path and angle dispersion, which greatly add the difficulty to cancel or suppress the noise. 拖曳式线列阵声纳的拖船噪声具有多途角扩展等特点，并且是一个非平稳过程，使得对该噪声的消除或抑制是一大难点。
- For example, many authors look at the signal they are able to measure and fail to note that the noise spectrum may provide information on fundamental processes that might limit detectability. 这是真正的气愤--审稿人会认为你在欺骗审稿过程，于是大斧来了。
- The lifeboat went out to a ship in distress. 救生船去救一艘遇险的船只。
- Fast adaptive estimation of noise spectrum 一种快速自适应噪声谱估计方法
- A New Method for Feature Extraction in Ship Noise 基于多重分形的舰船噪声特征提取
- The ship steamed into the harbor. 船驶入了港湾。
- The treatment of laser noise and its effect on the laser noise spectra up to this point involved semiclassical arguments. 到目前为止，都是用半径典理论处理激光噪声及其对激光频谱的影响。
- Decomposition of cavitation noise spectrum 空化噪声谱的分离
- Novel method for tow ship noise cancelling 拖船干扰抵消的一种新方法研究
- The ship was loaded with cargo fore and aft. 这条船从船头到船尾装满了货物。
