查询词典 modulation

According to the summation Fourier series of three kinds of methods, the relationships among the harmonic performance, vertical offsets and modulation index are obtained in the paper.

根据线电压的谐波分量理论表达式，获得了载波之间竖直方向的交叠量、幅值调制度和多电平逆变器谐波性能指标之间的规律。

In radio communications, a frequency in a superheterodyne receiver or transmitter system that enables easier filtering, distribution, modulation, and demodulation of a signal

在无线电通信技术中，超外差接收机或发送机系统中使用的一种频率，能够方便地对信号进行滤波、分配、调制和解调。

Celestial radiation transmitted through the antenna to the receiving system, by the receiving system amplification, the receiving system is usually a superheterodyne receiver, but now they are mainly three categories: compensation type, modulation type, the relevant type.

天体辐射经天线传输到接收系统，由接收系统放大，接收系统通常是一具超外差式接收机，现在也主要有三类：补偿型，调制型，相关型。

A feasible method is introduced to code and decode(converting between linear code and A-law pulse-code-modulation code)in order to reduce the quantity of speech data,and to superpose speech signal.

目前，51单片机应用广泛、性价比高，它的位处理功能在语音信号处理中也有很大优势，很多产品研发人员希望以单片机为核心研制经济实惠的语音系统。

The set of the elementary functions is obtained by the successive matching of the signal local nature with the single prototype Gaussian function through regulating its variance, sweep rate, translation and modulation in an adaptive manner.

基函数集是由单一原型高斯函数通过自适应调节其方差、扫频率、时移和频移来匹配信号的局部时频特征而获得。

Comparing with other capacity regulation methods, it has a good modulation effect and can avoid additional energy consumption as well as many problems such as compressor sympathetic vibration, leakage etc. Therefore, it has a good future.

与其它容量调节方式相比，这种调节方式不产生附加能量损失，并且可以避免变频压缩机所存在的共振、密封不良等诸多问题，可以获得更好的调节效果，具有很好的应用前景。

A good modulation effect could be obtained through this method in comparison with other capacity regulation methods .To be specific, additional energy consumption besides many problems such as compressor sympathetic vibration, refrigerant leakage,ect. can be avoided .So it has a promising application future.

与其它容量调节方式相比，这种调节方式不产生附加能量损失，并且可以避免变频压缩机所存在的共振、密封不良等诸多问题，可以获得更好的调节效果，具有很好的应用前景。

In telegraphy, the distortion caused by transients that, as a result of previous modulation, are present in the transmission channel.

电信技术中，作为前一种调制的结果，传输信道中出现由瞬变引起的失真。

The modulation architecture、the design of the general plan and the hardware structure of the telemetry system is studied.

详细研究了遥测系统调制体制的选择，总体方案的设计以及遥测系统的硬件结构。

The principle and technique for carrier and Theta modulation in optics are described in this paper.

本文论述光学载波和光学θ调制的原理与技术。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐