查询词典 modulation capability

Its output current can be continuously adjusted from zero to two hundred milliamperes and its stability reaches 1.5×10-5. The variation of the output current is less than 1μA when its operation time is longer than 12h. The modulation of frequency and intensity of optical wave in the laser interferometry can be achieved by the modulated current (100kHz～300kHz) input, whose modulation depth is continuously adjustable from zero to one hundred milliampere.

该电路的直流稳定度高达1.5×10-5，输出电流在0～200mA内连续可调，长时间工作（12h以上）电流变化小于1μA；在直流基础上注入100kHz～300kHz的调制电流，其调制深度为0～100mA连续可调，可实现在激光干涉测量中对光波频率和光波强度的调制。

The results were as follows: under light or medium water stress, the changes of RWC, Pro, RCC, MDA and SOD were similar, membrane penetration and membrane lipid peroxidation aggravated, osmotic modulation ability and enzyme protection system strengthened; physiological modulation ability declined under severe water stress. Almonds subjected to drought in the condition of below 3.77% soil water content. Altogether Fritz and Nonpareil both had stronger resistant drought adaptation.

结果表明，在受到轻度和中度胁迫过程中，扁桃幼苗叶片的Pro、RCC、MDA以及SOD都出现相似变化趋势，细胞膜透性和膜脂过氧化程度逐渐加剧，渗透调节能力和酶保护系统增强；在重度胁迫时，其生理调节能力下降，当达到土壤含水量3.77%以下的重度胁迫时，就会受到旱害；总体而言，两个供试品种扶兹和那普瑞尔都具有较强的抗旱适应性。

The results show that the change of modulation period and modulation depth affect the period of soliton interaction and the difference of relative amplitude barely affects period of soliton interaction. In particular the lattice soliton interaction is effectively avoided by opposite phase soliton.

结果表明：调制周期和调制深度的变化影响了格子孤子相互作用的周期大小，而相对振幅的差异对孤子相互作用的周期影响较小，特别是反相孤子能够有效控制格子孤子的相互作用。

The realize method of ITC strategy in FSTP induction generation system is studied. In order to improve stable performance of FSTP induction generation system, SVM-ITC (ITC based on space vector modulation) is investigated. Creation method of reference voltage vector which includes change trend and magnitude information of flux link and torque is presented. Because there is no zero voltage vector in four-switch system, a method which employs opposite vector in equal time to replace zero voltage vector is proposed. Two vector modulation schemes are presented.

为提高容错型四开关三相异步发电系统的稳态性能，进行了基于空间矢量调制的瞬时转矩控制研究，提出了包含磁链与转矩变化趋势与大小信息的电压参考矢量生成方法；针对四开关系统无零电压矢量的情况，提出用等时间相反矢量来代替零电压矢量的作用，并给出了两种矢量调制方案。

Meanwhile, the optical path difference and the degree of modulation of this kind of interferometer are calculated. It′s easy to be found that, in order to get the better diagram of the degree of modulation, both the inclination of the two image planes and the image aperture angle must be small angles, and both the lateral and longitudinal offsets must be smaller.

可以看出：要得到较好的调制图形，必须满足两像面夹角和像方孔径角都是小角的条件，且两个像点之间的横向距离和纵向距离越小越好。

Based on radar backscatter theory and scatter point model,aimed at the same frequency vibration scatter point of radar target,radar echo universal model is derived and the periodicity of amplitude modulation function and phase modulation function is researched at length.

基于雷达后向散射理论和散射点模型，针对雷达目标的同频振动散射点，详细推导并建立了雷达回波通用模型，对其幅度调制函数和相位调制函数的周期性进行了详细的讨论。

At last,simulation research is carried out on radar echo of two same frequency vibration scatter points.Theoretical annlysis and simulation result indicate that the model is effective and that the periodicity of amplitude modulation function and phase modulation function is invariable as the number of scatter points increased,but,their amplitudes are variational.

最后对两个同频振动散射点合成雷达回波进行了计算机仿真研究，理论分析和仿真结果表明，该模型是有效的，并且随着同频振动散射点数的增加，其幅度调制函数和相位调制函数的周期性不发生变化，只是它们的值会随着振动点数的增加而改变。

Based on the nonlinear dispersion relation of electromagnetic wave in relativistic plasma, the nonlinear controlling equation for linearly polarized mode is obtained using Karpman's method. The modulation instability of intense laser pulse propagating through relativistic plasma is analyzed and the modulation instability growth rate as a function of perturbation wave number for laser beam propagating through relativistic plasma is given.

从相对论等离体中电磁波的非线性色散方程出发，利用Karpman方法获得了线性偏振波模所满足的非线性控制方程，在非线性色散方程和非线性控制方程的基础上对线性偏振激光在相对论等离体中传播的调制不稳定性进行分析，给出了调制不稳定的时间增长率与扰动态波数之间的函数关系。

ABSTRACT Continuous phase coded modulation is an important research field of the modern digital modulation technique.

相位连续编码调制是现代数字调制技术中的一个重要研究领域。

In the course of the research of modulation measurement based on phase shift techniques, this paper gives the programs on error margin analysis of the phase shift and the function analysis of grating, and analyzes facts that phase shift error has some effects on obtaining modulation value.

在研究基于相移技术的调制度测量原理中，编写了相移误差分析及光栅性能分析的程序，并分析了相移误差对获取调制度信息的影响。

And he is one of the few scouts who are occasionally sent out to have dealings with other peoples.

而他也是少数的几位偶尔会被派出去和外界人打交道的巡逻人员之一。

The sons of Hebron: Korah, Tappuah, Rekem and Shema.

希伯仑的儿子是可拉，他普亚，利肯，示玛。