- 更多网络例句与发射信号相关的网络例句 [注:此内容来源于网络,仅供参考]
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Objective To find the relationship between correlation and signal to noise ratio of transient evoked otoacoustic emissions.
目的探讨在瞬态诱发耳声发射信号的检测过程中瞬态诱发耳声发射信号总的相关率和信噪比,以及各分频段相关率和信噪比的变化规律和相互关系。
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The detected leakage signal can be decomposed into a sum of finite intrinsic mode functions by EMD, some of IMFs embracing typical AE characteristic can be selected to be reconstructed. Thus, noise interference can be eliminated. The reconstructed signals are analyzed and their cross-correlation parameter is calculated.
该信号分析方法将管道泄漏产生的声发射信号通过EMD分解为多个平稳的固有模态函数之和,选择包含声发射特征的若干IMF分量进行重构,可以提取到管道泄漏声发射信号的本质特征,消除噪声信号的干扰。
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Considering the non-stationary specialties of AE signals, the diamond blunt feature extraction method based on bispectrum was studied. Furthermore, the diamond blunt feature extraction method based on main diagonal slice of normalized bispectrum magnitude of AE signal was proposed.
深入研究了砂轮修整过程中声发射信号的产生机理及其时频特征,提出了基于声发射信号的小波包频带能量分解的金刚石笔钝化状态特征提取方法;将高阶累积量和双谱理论引入到金刚石笔钝化状态的特征提取中,提出了基于声发射信号归一化双谱模对角切片的特征提取方法。
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The present invention relates a method and apparatus for receiving signal in MIMO CDMA system, charactered in that: on transmitting side, transmit signal by at least two antennas; on receiving side, receive at least one antenna, and obtaining channel paraneters by estimation of channel, using the channel parenters and maximum likelihood principle into MIMO+CDMA system, solving the problem of receiving signal in multiple mobile environment in effect.
本发明为一种基于MIM0 CDMA的接收方法及装置,其特征在于,发射端:至少采用两个发射天线发射信号;接收端:至少采用一个接收天线接收发射天线发射的信号,并且通过对信道的估计获得信道参数,采用该信道参数和最大似然原理的步骤得到输出信号。本发明将ML原理应用于MIMO+CDMA系统中。
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The test outcome indicates that the AE signal is abundant and has good measurability in the process.
研究表明,材料拉伸断裂过程中,声发射信号丰富明显,可测性良好,并且不同破坏阶段的声发射信号具有不同的特征。
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The channel correlation coefficient in microcellular has been derived by making use of geometry method.
本文的主要工作包括:一、针对传统的MIMO-OFDM系统,提出了发射天线数为2和3、发射信号为实信号及复信号下的一种新的解码方法。
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Compare the data structures of pressure fluctuation signals and AE signals both sampled in gas-solid fluidized bed, and the difference of data structures among AE signals sampled in gas-solid fluidized bed, pneumatic transport tube, slurry bubble column, liquid-solid loop reactor, and liquid-solid stirred tank. Based on the compare, the corresponding relation between signal structure and physical multi-scales was established.
通过对气固流化床的声发射信号与压力脉动信号的结构比较,以及气固流化床、气力输送、气液固淤浆鼓泡床、液固环管及液固搅拌釜中声发射信号多尺度结构差异比较,建立了多相流体系随机信号多尺度结构与物理多尺度的对应关系,认为在有固体颗粒存在的多相流体系,微尺度信号代表了颗粒相对于主体流动的运动状态;介尺度代表主体流相对于系统的运动或者不同主体流之间的相互运动;宏尺度则反映整个系统状态随时间的变化。3。
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By simulating the absorption spectrum of molecule iodine absorption filter ranges from 470nm~550nm, this paper selects the absorption spectrum of molecule iodine absorption filter that satisfies the requirement of frequency discriminator in detecting system and ascertains the center emission frequency of laser emitter.
以基于边缘探测技术的激光雷达监测大气信道和海洋水下信道环境参数为例,通过仿真出碘分子吸收滤波器在470nm~550nm区间范围内的吸收光谱谱线,选择出合适的吸收谱线并确定发射激光信号的中心频率,并在此基础上,给出了满足探测要求的激光发射信号单稳频指标,为实际探测系统的设计奠定基础。
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A device (ESF1) for spectral shaping of a discrete value transmission signal in a radio transmitter comprises one input (E1) for receiving an in phase component of the transmission signal and a further input (E2) for receiving a quadrature component of the transmission signal.
一种用于在无线发射机内对数值离散的发射信号进行频谱整形的装置(ESF1),它具有一个用于接收所述发射信号的同相分量的第一输入端(E1)和一个用于接收所述发射信号的正交分量的第二输入端(E2)。
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To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.
针对线性调频连续波雷达实现中急待解决的技术问题,文中提出并验证了线性调频连续波信号的综合动态测试技术,可以完成对线性调频连续波雷达发射信号的扫频线性度、扫频带宽和扫频斜率的综合动态测试,为衡量实际线性调频连续波雷达的系统性能创立了精确有效的测试手段;文中建立的非实时闭环动态校正技术使一部实际的线性调频连续波雷达的发射信号(时带积3×10〓)的扫频线性度从25%改善为0.1%(方均根线性度0.04%),优于国外已公布的80年代同类雷达中采用复杂的实时闭环动态校正环路所获得的实际结果(0.22%);为了改善线性调频连续波雷达的实时性和分辨单元数处理能力,文中发展完善了实带通信号的采样定理并给予了严格证明,并在此基础上提出了欠采样等效混频原理,将其应用于实际线性调频连续波雷达的距离分段处理中;针对线性调频连续波雷达中系统背景干扰和回波动态范围问题,创立了系统背景综合抑制技术和频域动态范围压缩技术,并将它应用于实孔线性调频连续波雷达系统中,显示出它们的有效性。
- 更多网络解释与发射信号相关的网络解释 [注:此内容来源于网络,仅供参考]
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BTU transmission:透射;传输,传送,发射,播送;传动;输电;传输信号;传送信息;转移程序
transmission 透射 | BTU transmission 透射;传输,传送,发射,播送;传动;输电;传输信号;传送信息;转移程序 | X transmission 传输
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发射I/Q信号:TX VQ
TX Dual VCO Transmit Dual Voltage Controlled Oscillator 发射双电压振荡控制器多用于三星手机电路中. | TX VQ 发射I/Q信号 | TX IN Transmit Input 发射输入
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acoustic responder:水声应答器即主动式水下声标,可接收船上声信号,并发射应答信号
acoustic water level 声学水位计应用空气声学回声测距原理,根... | acoustic responder 水声应答器即主动式水下声标,可接收船上声信号,并发射应答信号. | side scan sonar 侧扫声呐主动声呐与航向正交的固定声束对海...
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signal rocket projector:焰火信号发射器
signal rocket 信号火箭 | signal rocket projector 焰火信号发射器 | signal rotor 信号转子
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stimulated emission:受激发射
为了检测这些不发荧光的分子,Xie的小组开发出一种基于受激发射(stimulated emission)的新型显微镜. 当处于激发态的电子被正常能量水平的光子干扰时,回到基态,并发射光子. 研究人员利用同步的输入和输出脉冲序列,记录了受激发射的信号.
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Transmit:发射
在发射(transmit)一束超声脉冲瞬间(几个微秒)之后,有很长一段时间(200-300μs)可用于接收(receive)、处理回声信号. 所接收的弱回声可为发送信号的数万分之一,所以这种脉冲反射(或散射)法灵敏度很高. 因而超声诊断应用很广,发展也很快.
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transmitter:发射器
信源从一组可能传播的消息中产生出实际传播的一条消息(message);发射器(transmitter)将消息转变为信号以适合传播渠道(channel)使用;接收器(receiver)将信号重新恢复成消息;信宿(destination)是消息想要传达的人或物,即即接收者.
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Emits an electromagnetic signal:发射电磁信号
Now, listen up, class. GPR, ground-penetrating radar.|认真听讲,同学们 GPR,探... | Emits an electromagnetic signal.|发射电磁信号 | Allows you to locate anomalies or hollow spaces.|用来定位地下不规则物体...
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relaying transmission:中继传输<在火场电视发射地点的火场实况信号
relay 继电器 | relaying transmission 中继传输<在火场电视发射地点的火场实况信号 | release connection 断开
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Look for flares, strobes, anything. He fell right in the debris:寻找火光 信号发射仪 无论什么都成 他掉进了残骸里
Monitor the radio, sir.|监听无线电 长... | Look for flares, strobes, anything. He fell right in the debris.|寻找火光 信号发射仪 无论什么都成 他掉进了残骸里 | Lost swimmer. Lost swimmer.|救生员失踪 救生员...