查询词典 analog signal

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。

Bnormal MRI manifestations in all of the 20 cases with acquired hepatocerebral degeneration,in which T1WI demonstrated increased signal in hibateral lentiform nucleus (n=20),globus pallidus(n=17),surrounding mesencephalon red nucleus(n=15),and in anterior pituitary(n=4)While T2WI demonstrated no corresponding alteration in signal intensityConclusion Abnormal MR signal in the patients with acquired hepatocerebral degeneration has special features and MRI has right value for the diagnosis of this disease

全部病例均有完备的临床与MRI资料。结果：20例脑部均有阳性MRI表现，其中双侧、豆状核20例，苍白球17例，中脑红核周围15例，垂体前叶4例，表现为自旋回波序列T1WI为高信号，T2WI及FLAIR像无异常。结论：获得性肝性脑部变性的MRI征象具有特征性，MRI对该病的诊断有较高价值。

In order to confront with the increasingly complicated electromagnetic environments and adapt to the development necessary of the integrative electronic warfare,this paper studies the integrative reconnaissance technology for radar and communication signals from single-platform,analyzes the characteristics of radar and communication signals in detail from the different aspects of the electromagnetic frequency band,function,power,signal waveform and modulation mode,researches some key technologies to realize the integrative reconnaissance for radar and communication signals,such as integrative microwave front technology,digital receiver technology,digital signal processing and modularity technology,especially analyzes and researches the integrative signal sorting and identification technology deeply.

为对抗日益复杂的电磁环境，适应一体化综合电子战发展的需要，对单平台雷达/通信侦察一体化技术进行了研究。从电磁频段、功能、功率、信号波形及调制方式等不同角度，详细地分析了雷达与通信信号的特点；对实现雷达/通信侦察一体化的一体化微波前端技术、一体化数字接收机技术、一体化数字信号处理技术、模块化技术等关键技术进行了研究，尤其是对一体化信号分选、识别技术进行了深入的分析研究。

The medium can be directly used in sensing membrane, then the Wheatstone bridge which are distributed in the sensing membrane could convert the pressure into electrical signal by piezo-resistance effect, then amplify the millivolt signal produced by sensing parts into industrial standard signal via following circuits.

介质压力直接作用于敏感膜片上，分布于敏感膜片上的电阻组成的惠斯登电桥，利用压阻效应实现了压力量向电信号的转换，通过后续电路将敏感元件产生的毫伏信号调理放大为工业标准信号。

Direct effect on the pressure distribution in the diaphragm, sensitive resistors sensitive patch on the bridge, using the huygens stearns piezoresistive effect achieved pressure strength to signal conversion, through the subsequent circuit will sensitive components of millivolt signal disposal for industrial standard signal amplifier.

传感器膜片及壳体材料具有不同的介质兼容性，用户应考虑被测介质的种类、杂质含量、浓度、温度等条件对压力测量产生的影响，选择合适的防护材料和测量结构。外壳接地端必须接地良好，接地电阻符合相关电气规范

It combines the stereo signal into a monaural downmix signal and extracts the parameters of stereo signal as the stereo image.

PS的压缩概念来自於将双声道讯号合成为单一声道讯号，再加上由左右声道所抽取出的双声道特徵来进行压缩。

The playback method includes a first step of outputting stereo audio signals using the monaural audio signal if the necessary stereo process information is not supplied; a second step of starting updating stereo variables within filters, and outputting the stereo audio signals using the monaural audio signal until all the state variables are updated, if the necessary stereo process information is supplied; and a third step of performing the stereo process based on stereo process information acquired by the necessary stereo process information, on the monaural audio signal to generate and output stereo audio signals, if all the state variables within the filters are updated.

该再生方法包括：第一步骤，如果没有提供立体声处理必需信息，则输出使用了非立体声音频信号的立体声音频信号；第二步骤，如果提供了立体声处理必需信息，则开始更新滤波器内的状态变量，并输出使用了非立体声音频信号的立体声音频信号，直到更新完所有的状态变量；以及第三步骤，如果更新完滤波器内的所述状态变量，则对非立体声音频信号执行基于通过立体声处理必需信息获取的立体声处理信息的立体声处理，并生成并输出立体声音频信号。

As required by the working features of monostable flip flops, the design idea of monostable flip flops with RC circuit as the timer unit is explained by using the transient phenomenon of signal changing resulted from the differential circuit or from "the static race hazard of signal", and by linking the storage principle of signal feedback.

根据单稳态触发器工作特点的要求，以RC电路为定时单元，利用微分电路及"信号静态竞争冒险"等信号瞬变现象，并结合信号反馈存贮的原理，阐明单稳态触发器的设计思想。

With the train speed increasing, it's required for the motorman to drive according to the direction of cab-signal, rather than the ground signal. It demands a hundred percent preciseness of the reliability while the cab-signal working.

随着列车运行速度的提高，要求司机按照机车信号指示开车而不看地面信号，这对机车信号工作的可靠性提出100%无误差的要求。

Starting from the signal of pressure and temperature, this paper does a series of theoretical and experimental researches on the following topics: the fundamental theory of the thermal parameter method, its field of application, the choice of diagnostic signal, the choice of the technologies on analysis of the signal, the foundation of the database of the fault samples, the application of the artificial nerve net technique and the error analysis of the experimental systems.

本文以参数法中的热力参数为研究对象，以压力、温度信号为研究信号，就热力参数法的基本原理、适用范围、诊断信号的选择、诊断信号分析技术的选择、故障样本库的建立、人工神经网络技术的应用及实验测试系统的误差分析等一系列问题展开了较深入系统的理论和实验研究。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。