查询词典 modulation

The MAX483MJA is an integrated Pulse Width Modulation controller and Sense FET specifically designed for Quasi-resonant off-line Switch Mode Power Supplies with minimal external components.

该MAX483MJA是一家综合脉冲宽度调制控制器和感场效应管专为准谐振离线开关电源设计的最少的外部元件。

Following that, we implement the algorithms of FOC, space vector pulse-width modulation, and speed control using the digital signal processor. Regarding to the influence of controller parameters on dynamic response of the motor speed, this thesis proposes the speed control of PMSM using self-tuning fuzzy technique. By the self-tuning technique, the on-line fuzzy logic controller output can give better speed response under the load disturbances or variable speed commands.

本文首先使用数位讯号处理器完成磁场导向控制、空间向量脉波宽度调变及速度控制之策略，针对控制器参数对系统动态响应之影响，提出采用自调式模糊控制器於速度控制回路，藉由自调式机制，线上调整模糊控制器之参数，使PMSM在变动负载及速度命令下有较佳之动态响应，达到提升系统响应及强健性之目的。

Transcription factor Relish of An. stephensi might play a role in signal modulation of Plasmodium yoelii infection and oocyst melanization.

斯氏按蚊转录因子Relish可能在疟原虫感染或/和约氏疟原虫卵囊黑化调控中发挥重要作用。

study of optical path modulation in coherent optical telescope array.

光学综合孔径望远镜阵的光束组合器。

Users in good channel state were scheduled in larger intervals, and cumulative packets were sent in one scheduling interval using high order modulation and coding schemes. Thus users in bad channel state were given more chances to be scheduled.

对信道状况好的用户采用较大的调度间隔，并采用高阶的调制编码方案将累积的数据包在一个调度间隔内发送，从而给予信道状况差的用户更多的调度机会。

In the new system, the orthogonal functions replace the trigonometric functions in the coherent modulation-demodulation of traditional communication system.

正是这种正交函数使得通信系统的传输的性能大大提高，保密性加强，而且正交函数的产生很方便。

At the end, based on the study of multi-carrier CDMA, an orthogonal sequence division modulation scheme for CDMA system is proposed.

最后，在研究多载波CDMA的基础上，提出了一种应用于CDMA系统的正交序列调制方法。

The paper presents a new orthogonal sequence modulation sceheme using FHT which is easier to implement than FFT.

在宽带移动通信系统中，经常考虑采用通过FFT实现的多载波调制，如OFDM。

Like multicarrier modulation, the high rate data transmitted at first by serial-to-parallel convert, then the low rate data streams are spreaded spectrum by a set of orthogonal sequence.

相似于多载波调制，传输的高数据率首先进行串-并转换，然后对转换后的低数据流用正交序列进行扩频调制。

Simulation results show that our scheme can lead to performance comparable to that of other non-coherent orthogonal modulation schemes.

仿真结果表明，本方案在降低复杂度的同时具有和其他方案可比的性能。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新