The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。
In order to improve performance of this method over frequency selective channel, we average over several symbols.
并针对频率选择性信道采用了多符号平均改善算法性能。
A new transmission scheme, which combines transmit preprocessing with multiuser MIMO downlink system over frequency-selective fading channel is proposed.
提出了一种适用于频率选择性衰落信道，新的下行多用户MIMO系统预处理传输方案。
This letter present a differential space-frequency coded orthogonal frequency-division multiplexing (OFDM) scheme over frequency-selective fading channels.
本文提出了频率选择性衰变信道中采用了差分空频编码的正交频分复用(OFDM)传输方法。
In this paper, we propose a diagonal space-frequency (DSF) block codes over frequency-selective Rayleigh fading channels and study performance of the code.
本文提出了频率选择性瑞利衰落信道中的对角空频分组码(DSF)，研究了码的性能。
At present the matching problems between the generator over frequency protection and turbine over speed protection exist commonly in coal-fired power units.
目前，火电机组普遍存在发电机过频保护与汽轮机超速保护之间的配合问题。
An introductory approach to designing for ESD. Understanding the ESD pulse, how passive components react over frequency, and PCB layout techniques are exposed.
本文档介绍了ESD的设计。详细介绍了ESD脉冲、被动器件对频率的反应、PCB布局等。
In order to extend it to frequency-selective channels, a detection scheme for V-BLAST over frequency- selective channels, which is based on space-time MMSE criterion, is proposed.
提出了基于空时MMSE准则的频率选择性信道下V-BLAST检测方案，并给出了最佳均衡条件和两种自适应空时均衡算法。
Fatal road accidents have decreased in frequency over recent years.
近年来致命交通事故发生率已经下降。
Ofcom will auction off the frequency currently used by analogue television broadcasts in 2010, handing it over for use by mobile operators.
通信管理局将在2010年拍卖现在由模拟电视广播使用的频率，将它移交给手机运营商。
The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.
第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。
However, over time, as XML has grown in frequency of usage and in size and complexity, it has become a more critical component of business operations.
然而，随着时间推移，XML的使用日益频繁，其规模和复杂度也不断增长，它逐渐成为企业运营中的一个关键组成。
Wireless frequencies are a scarce resource, so wireless providers use multiplexing to send multiple calls over a single frequency.
无线频率是稀有的资源，因此无线频率提供商使用多路复用技术通过一个频率发送多个呼叫。
Many of you still do not realize that the work you have done on both sides of the veil over the past 25 years has changed the earth you were born on into a completely different frequency and paradigm.
很多人还没有意识到你们在过去的25年中在帷幕两边同时工作着，这已经让你们所出生在的地球转入完全不同的频率和模式之中。
Inactive people should start with small amounts of physical activity and gradually increase duration, frequency and intensity over time.
缺乏活动的人在开始时应做少量的身体活动，并随时间逐步增加活动时间、频率和强度。
The properties of the light over time are converted to frequency Numbers to make what looks like a comb.
此光在时间上的特性转换为频率数量后看起来便像一个梳子。
Most nightmare patients treated with imagery rehearsal therapy report improvements in sleep quality and significant reductions in nightmare frequency; these gains are maintained over time.
大部分的接受图像预演疗法的患者都报告有睡眠质量的提高和噩梦出现频率的显著减少；这些改善随着时间的推移依然能够保持。
So if now I hang on it a mass of one kilogram, I can calculate the period of one oscillation, and one over the period F is the frequency F, and I believe that is something like 38 hertz.
如果在上面,悬挂1公斤物质，我能够计算出,振荡的周期，1除以周期,等于频率，我相信,等于大概38赫兹。
I was looking at the web based dictionary wordnik and one of the features they have is a little graphic representing frequency of a word's appearance over time.
我用在线词典wordnik查了这个词，这类网络词典的一个特点是有附一个反映单词使用频率随时间变化的表格。
You can see that the conservative governor saves about 20w over the performance governor; that is, there is no processor frequency scaling and the ondemand governor saves about 15w on average.
可以看出，conservative调控器比performance调控器大约节约了20w；也就是说，没有处理器变频且ondemand调控器平均节约15w。
While doctors offering the treatment are singing its praises over procedures that use radio frequency and ultrasound technologies, other are sounding a note of caution.
虽然一些提供这种疗法的医生大为推崇，声称冷冻溶脂术要优于射频和超声波技术，但其他人也提出警告。
It is appropriate to start with smaller amounts of physical activity and gradually increase duration, frequency and intensity over time.
适宜的方法是，从较小的活动量开始，然后随着时间的推移，逐渐增加持续时间、频度和强度。
When a composite video signal is broadcast over the airwaves by a TV station, it happens on a specific frequency.
当电视台要把组合视频信号经由无线电波广播出去时，要先把它调制到特定频率的载波上。
Many of them were using a pea-sized speaker to receive the answers over a radio frequency.
很多人借由一个豌豆大小的耳机来通过无线电频率接收答案。
OFDMA is based on the idea of frequency-division multiplexing, which is a method to transmit multiple data streams over a channel.
OFDMA是根据频分多路传输系统的思想，这是一种在一个频道上传输多个数据流的方法。
A far simpler kind of chip called a radio-frequency identification (RFID) tag, which sends a tiny quantity of data over a short range when activated, can already be manufactured for 4 cents apiece.
有一种更简单的芯片叫做无线射频识别(RFID)标签，它在被激活之后可以在小范围内发送很短的一段数据，现在，其造价只要4美分一片。
Next, however, the e-passport has to be placed over an inductive reader that provides the radio-frequency energy to power up the passive RFID so it can spit out its data.
然而接下来，得把电子护照放在一个感应阅读器上，后者才能供给无源rfid射频能量电源，稍后，护照里的数据才能读出。
Once you get used to the process, increase the frequency and/or duration, but it’s more important that you keep at it over time than it is that you’re consistent in intensity over time.
等到你已经习惯了之后，再增加次数和强度，但最重要的是保持这个习惯而不是每次都要求保持强度。
Once you get used to the process, increase the frequency and/or duration, but it’s more important that you keep at it over time than it is that you’re consistent in intensity over time.
等到你已经习惯了之后，再增加次数和强度，但最重要的是保持这个习惯而不是每次都要求保持强度。
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