调制的

How to improve the performance of modulation recognition algorithms in low SNR becomes an important theme for their applications.

如何提高调制识别算法在低信噪比时的识别性能，是调制识别技术工程应用中必须解决的重要课题。

The packet error rate and channel estimation are used to compute the adaptive threshold in order to maximize spectral efficiency under given delay and error performance constraints.

该技术结合了传统物理层自适应调制和链路层自动请求重发，利用链路层的误包率和信道估计参数计算自适应调制门限，在系统给定时延和误包率约束的基础上最大程度地提高了频谱利用率。

The invention relates to electrooptical light modulating elements, to electrooptical displays containing elements of this type, and to display systems, e.g. television screens and computer monitors, and to the modulating media used therein.

本发明涉及电光学光调制元件，涉及包含此类型元件的电光学显示器和显示系统，例如电视屏和计算机显示器，和涉及其中使用的调制介质。

Under mixed modulation mode, each modulation mode user their own interweaver, each interweaver uses independent B and M.

在混合调制模式下，各调制模式使用各自的交织器，各交织器使用独立的B和M。

The results demonstrate the overmodulation algorithm feasible.

根据上述原理得到过调制模式Ⅰ的六扇区计算公式，并在TMS320LF2407A硬件上进行实验，证明了过调制算法的可行性。

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。

A continuously variable slope delta modulation codec is implemented, in which step size of the quantizer is syllabically adapted according to the slope of the input signal. The CVSD codec poses least hardware complexity and offers excellent noise immunity.

连续可变斜率增量调制是一种性能良好的音节压扩自适应增量调制，非常适合语音信号的编解码，其硬件实现简单，抗噪声能力强。

A new method is suggested to solve the problem of nonstationary random responses of elastic-viscoelastic composite structures. The correlation characteristics of responses under uniformly modulated or ununiformly modulated random excitations are obtained.

提出了演变随机激励下弹性-粘弹性复合结构非平稳随机响应特性的一种分析方法，分别讨论了均匀调制和非均匀调制两种情况下粘弹复合结构系统随机响应的相关特性。

The document is a communication principle of digital modulation and demodulation of the Matlab code. such as BPSK, QPSK, QAM modul...

该文档给出了通信原理中的数字调制和解调的matlab程序代码，如BPSK，QPSK，QAM等等调制方式。

A modulator, which is connected to the oscillator, modulates the oscillator output in order to detect a failure.

为了检测故障，与振荡器连接的调制器对振荡器的输出进行调制。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。