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- Extracting line spectrum from ship-radiated noise is a key technique for identification of underwater targets in passive sonar system. 线谱是水中目标辐射噪声中重要的特征信息,在被动声呐系统中,线谱提取是水中目标识别的关键技术。
- Simulations show by this method we can precisely estimate time delay for narrow band and line spectrum source in low SNR. 通过计算仿真结果证明这种方法对低信噪比下窄带和单频信号具有较高时延估计精度。
- The proposed NTTALE has the ability to handle undersea ambient noise twice, to enhance the UMT radiated line spectrum feature twice, and to track well time-varying signals. 用水下某目标辐射线谱的实测数据，对该增强器的性能进行了仿真研究。
- A semi-fragile speech watermarking algorithm based on speech model is researched, which is realized by quantization of line spectrum pair (LSP) parameters. 在语音产生模型的基础上研究了一种基于该模型的半脆弱性数字水印算法，通过对语音信号的线谱对(LSP)参数嵌入水印信息来实现。
- This paper discussed various technology of urea reactor shell lining, emphatically expound the detail of hot sleeving liner process. 本文对尿素合成塔筒体衬里的各种工艺方法进行了探讨,着重阐述了热套衬里工艺的详细过程。
- Of the gas. Since different gas has different set of lines, we can tell which kind of gas it is by analyzing the line spectrum. 不同的气体会产生不同的线条,就如人类的指纹,只要分析光谱上的吸收线,便可以知道光波曾经通过的气体成分。
- By DEMON we can get more and stabler line spectrum information than by LOFAR, which is to make power spectrum analysis of signal directly. Several demodulation methods are introduced and compared. 通过包络解调技术可获得轴频等调制信息,这就是常用的DEMON谱分析方法。
- Dynamic modulated envelops were analyzed by dimensional spectrum and modulated line spectrums achieved. 然后，利用小波变换求其功率谱从而得到辐射噪声的调制包络；
- As specialist in raw meal and cement mills, CPB supplies complete grinding plants and also components such as mill diaphragms, shell lining systems and grinding media made of highly wear resistant materials. 作为磨粉原料和水泥磨机方面的专家，CPB提供全套研磨设备及零部件，如磨机隔仓板，衬板系统以及用高效耐磨材料制造的研磨介质。
- Aluminum alloy formed shell, lastingly rustless. 铝合金成型外壳，永不生锈。
- Generation selection on Shaoxing green shell line duck 绍兴鸭青壳系世代选育
- Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
- A detection method Of DEMON signal line spectrum 一种DEMON信号线谱识别方法
- She put some noodles in the aluminum saucepan. 她在铝锅里下了些面条。
- line spectrum feature extraction 线谱特征提取
- Aluminum foil can be used for wrapping food. 铝箔用于包装食物。
- Keep down of you'll be hit by shell fragments. 别起来，否则你会被弹片击中的。
- The snail retreated into its shell. 蜗牛缩进壳里去了。
- The new building has aluminum siding and roofing. 新建筑用铝作墙板和屋顶。
- A shell splinter embedded itself in the wall above his head. 在他头上方的墙壁上嵌有一块小小的贝壳片。
