查询词典 modulated

Based on the principle of energy equivalence, the expanding expression of seismic acceleration process is achieved. The seismic process is expanded into a linear combination of deterministic functions modulated by 10 uncorrelated random variables.

为此，提出了从地震动位移过程的正交展开出发，引入一类能量等效原理，获得了地震动加速度随机过程的正交展开式，进而将地震动随机过程展开为由10个独立随机变量所调制的确定性函数的线性组合形式。

The frequency of an unmodulated wave capable of being modulated or impressed with a second (information-carrying) signal.

未经调制的电磁波频率可以接受调制或加载第二信号。

A CW carrier signal, generated by Agilent Signal Generator, is transmitted to the subject, which reflects the modulated waves to the receiver antenna. The Agilent Spectrum Analyzer, with an under-conversion module inside, demodulates the received signal to 70MHz IF signal, which is then sampled by a ADC module in Agilent Vector Signal Analyzer. Digital quadrature demodulation is used to convert IF signal to baseband. We could finally get the respiration and heartbeat signal by further analyzing the baseband signal.

该系统由信号发射器产生载波，通过天线发射到被测物体；频谱分析仪内置的下变频模块将由物体反射回来的信号下变频到70MHz中频；中频信号经矢量信号分析仪采样，然后经过数字正交解调变频到基带信号；对基带信号进行滤波、FFT等进一步的数字信号处理后即可获得探测的心跳和呼吸信号。

Chapter 6 proposes a new method of analysis performance for modern modulation systems by means of the vector space representation of digitally modulated signals and the multivariate statistical theory.

具体分为三个方面：第一，同样利用了信号的矢量空间理论和多元统计分析原理，建立2FSK系统的矢量数学模型。

The binding of BmK abT to rat brain synaptosomes could be partially inhibited by increasing the membrane potential, but not by BmK AS, BmK IT2 and BmK I. Binding was not modulated by veratridine.

对于哺乳动物脑型钠通道，BmK abT 的结合位点可能不同于BmK AS、BmK IT2 和BmK I 的结合位点，但与经典的α-型毒素结合位点较为接近；对于昆虫钠通道，BmK abT 的结合位点至少部分与抑制型抗昆虫毒素BmK IT2 的结合位点相互重叠。

New type water gauge and infrared modulated propeller type micro current meter are developed, and collective acquisition of distributed velocities is realized.

本文关于水力阻力和自动测控系统的成果均应用于实际工程水力模型研究，形成了有一定特色的体系。

Direct digital waveform synthesizer; linear frequency modulated signal; digital-to-analog conlerter; pulse compression

直接数字波形合成；线性调频信号；数模转换器；脉冲压缩

On entering Wollaston prism lidar backscattering light divides into o-ray and e-ray, which polarization is affected by voltage of Pocksels cell, transmission rate of optical system can be modulated by voltage because of correlation between transmission rate of optical system and polarization direction of light.

激光雷达的后向散射光经Wollastom棱镜分成o光和e光，它们的偏振状态受到Pocksels盒上的电压大小的控制，而整个系统的光学透光与偏振光的偏振角度相关，从而使得系统透过率受到电压的控制。

The development of adnexal structures at specific skin sites, such as the regional variation in thickness of the three skin layers, is genetically modulated.

特殊部位的附属器发育、不同部位皮肤的三层厚度不一致，是受遗传调控的。

The signal transduction involved in the cold-induced apoptosis is anfractuous, either mediated or modulated by reactive oxygen species, Ca~(2+), Fe~(2+) and cold-relevant genes in vivo.

冷诱导细胞凋亡的信号转导过程错综复杂，细胞内活性氧自由基、Ca~(2+)、Fe~(2+)以及冷相关基因都介导或调控冷引起的细胞凋亡。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。