查询词典 modulation

Keywords: definition, curvilinear regression analysis, point sharpness method, modulation transfer function MTF

该评价方法评价参数可通过改进边缘锐度算法得到，然后与机测MTF值的变化趋势一起做曲线回归分析，以便和其他传统清晰度评价参数做对比。

The instrument can measure the CW that uses signal of complex in EW, radar and communication system modulation, peak value and real average power.

仪器能够测量利用在EW、雷达和通信系统中简单调轨制信号的CW、峰值和真正的平均功率。

It is shown a new way for fast implementation of CWT based on amplitude modulation techniques for generating wavelet chain.

该方法利用幅度调制技术产生小波链实现小波变换，为小波变换的快速实现提供了新的途径。

We present linear codes over finite fields with Mannheim weight and prove that those codes can correct one error taken from a cyclic subgroup of the multiplicative group of finite fields, which provide an algebraic approach in coding modulation.

最后讨论了有限域上的Mannheim线性纠错码，证明了当错误取值于有限域乘群的一个循环子群时，面向多维信号的线性分组码可以纠单个错并为码调制提供了一种代数渐进方法。

Firstly expound the structure of the OFDM system, then analysis the working principle of OFDM communication and research into the key technologies in OFDM system: string conversion, sub-carrier modulation and demodulation, inverse Discrete Fourier Transformation, Discrete Fourier Transformation, cyclic prefix Insert, etc.

该文首先阐述了OFDM系统的结构，分析了OFDM通信系统的工作原理，研究了OFDM系统实现过程中串并转换、子载波调制解调、离散逆傅里叶变换、离散傅里叶变换、循环前缀插入等关键技术。

Descend frequency decimator can change the modulation code into binary code.

降频滤波器将类比电路的三角积分调变器输出的调变码转为二进制码。

The digital part contains space vector pulse width modulation, simple center computer processor, proportional-integral controller and descend frequency decimator.

整体架构大致可分为数位和类比电路二大部份，数位部份可分为：空间向量脉波宽度调变器、简易中央电脑处理器、比例积分控制器、降频滤波器。

In this paper, a new cost function is investigated and a variable step size Decision Directed equalization algorithm based on this function is proposed for MQAM modulation.

本文对一种新的代价函数作了研究，提出一种适用于MQAM调制信号的变步长的判决引导的盲均衡算法。

We found that the right lateral decubitus position can lead to the highest vagal modulation among 3 recumbent positions in young healthy subjects, aged person, patients with coronary artery disease and patients with acute myocardial infarction.

我们发现右侧卧的卧姿除了对正常年轻人有提升副交感神经活性作用之外，在老年人、冠状动脉疾病的患者与发生急性心肌梗塞的患者也有相同的效果。

An important part of this paper is dedicated to the analysis and deduction of modulation and control method proposed.

对给出的控制策略进行了详细的理论分析与推导。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。