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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。
- 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;
- A detection method Of DEMON signal line spectrum 一种DEMON信号线谱识别方法
- line spectrum feature extraction 线谱特征提取
- Based on the physical causes and spectral characteristics of torpedo radiated noise line spectra, this paper researches on feature extraction of torpedo target . 基于鱼雷辐射噪声的物理特性和线谱特征,探讨了一种鱼雷目标特征提取方法。
- The vertical line meets the horizontal one here. 垂直线与水平线在此相交。
- One line cuts another at right angles. 一条线与另一条线成直角相交。
- The printers have missed out a whole line here. 排版工人在这里漏掉了一整行。
- Participation in tender is in our line of business. 参加投标属于我们的业务范围。
- A long line of car is unable to pass that road hog. 一长串的车子无法超越那个挡道的汽车驾驶。
- The sale office is on line to the warehouse. 营业部与仓库的计算机联网。
- How do you get start in that line of work? 你是怎么开始干那一行的?
- I do not want to be in the boss line of fire today. 今天我不想遭到老板的非难。
- Place your right toe in line with your left heel. 把右脚趾与左脚跟排在一直线上。
- The line of flags was slung up between two trees. 一排旗帜悬挂在两棵树之间。