查询词典 amplitude modulation

Aircraft navigation system, one or more ground navigation station with the provisions of the frequency of launching radio beacon signal (amplitude wave, audio wave modulation or code), aircraft flight navigation equipment according to the received beacon signal measured or calculated aircraft Solutions relative to the navigation ...

飞机导航系统中，一个或几个地面导航台用规定的频率发射无线电信标信号（等幅波、音频调制波或代码），飞机机上导航设备根据收到的信标信号测出或解算出飞机相对于导航。。。

The maximum modulation for undistorted operation is that which varies the carrier amplitude between zero and twice its unmodulated value.

最大不失真调制是使载波幅度在O到两倍于未调制值的范围内变动。

The calls of non-passerine are some kinds of monotonous dull vocalizations with the characteristics of low and deep frequency, single syllable, low basic frequency and with no ability of modulation in frequency and amplitude. Most of the calls are monotonous and low quality mainly based on the basic song. Compare the vocal of sub-oscine passerine with non-passerine, they have some similar aspects, but the former possesses of stronger capability of vocal control.

非鸣禽的叫声低沉而单调，音节种类单一，基本音频率低，缺乏频率调制以及幅度调制的能力，叫声的品质因数很低，不悦耳，大多为以基本音为主的单音调低音品叫声，亚鸣禽的叫声与非鸣禽近似，但在控声能力方面又有所提高。

B Co substitutions for Cu in Bi-2201 influence in various ways on the structure symmetry, subcell parameters, periodicity and amplitude of the modulation, and structural disorder etc..

Bi-2201相中Cu位上的Co元素掺杂效应在晶体结构对称性、亚晶胞参数、调制波周期及调制幅度、结构无序化等方面都有不同程度的影响。

It was found that SO2 derivatives increase the amplitude of IA in CA3 neurons, and inhibit the inactivation of IA. After SO2 derivatives application, normal sensory physiology of hippocampal neurons was affected. This variation caused by SO2 could underlie the toxical modulation of sensory input to the central nervous system.

说明SO2代谢衍生物可增大大鼠海马CA3区神经元IA电流，延长A-电流的失活时间，从而影响海马神经元的膜生理感应，这可能是SO2影响神经细胞功能的机理之一。

When communication by pulses was introduced, the amplitude, frequency and pulse width become possible modulation options.

当脉冲的沟通被介绍的时候，广阔，频率和脉冲宽度变成可能的调音选项。

The packet clock then goes into SOA to reduce the low-frequency amplitude noise and temporal fluctuation with the self-gain modulation effect of SOA.

利用半导体光放大器的自增益调制效应对组合滤波器提取的帧时钟进行整形，降低帧时钟的幅度噪声和时间抖动。

To further investigate the above-mentioned characteristics, we use the dependence of the peak amplitude of the third-derivative signal on the modulation width to determine the linewidth of the hyperfine structure a10 component of R(56) 32-0 transition.

为了更深入研究上述的特性，我们使用三次微分讯号的最高振幅和调制线宽之间的关系来决定出a10的线宽。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。