通道采用时间-频率划分。
戈德史密斯说,大多数第二代手机或2G手机采用时间划分和频率划分相结合的方式。
Goldsmith said that most second-generation, or 2G, cell phones use a combination of time division and frequency division.
FCC批准的第二意见与指示备忘录在全美范围内为麦克风与其他低电能辅助服务设备的应用划分了两个未使用的超高频频率。
The FCC's approved Second Memorandum Opinion and Order sets aside two unused UHF frequencies nationwide for the use of microphones and other low power auxiliary service devices.
可以将一天划分为多个区间,每个区间具有不同的令牌创建频率。
You could break up the day into intervals, each of which has a different rate for token creation.
按照他们饮酒的量和频率把他们划分为三类:轻度饮酒者、适度饮酒者和重度饮酒者。
Both the amount they drank and how often was used to divide them into light, moderate and heavy drinkers.
指出了步进电机的选择原则、动和运行频率区段的划分。
It pointed selection principle of stepping motor, and divisions of starting and running frequency range.
该模型将输电线路的运行状态划分为四种状态,给出了每种平稳状态的状态概率、状态频率和状态持续时间的计算方法。
In this model, running state of transmission line is divided into four states, and calculation method of state probability, state frequency and state duration in balanced state are given.
求出多相滤波器频率响应后,用多个基于相同原型滤波器的数字滤波器将其划分为多个信道输出以达到降低信道输出速率的目的。
After polyphase filter frequency response was done, the channel out rate was fallen, and it was divided into multi-channel by the several digital filters based on the same archetype filter.
实现不同帧之间的比特交织等。COFDM调制部分包括块划分及COFDM符号形成、DQPSK符号映射、频率交织、差分调制及COFDM调制等环节。
The COFDM modulation part is made up of blocks partition, COFDM symbol forming, DQPSK symbol mapping, frequency interleaving, difference modulation and COFDM modulation and so on.
多因子综合指数法计算定级指数后采用总分值频率直方图划分农用地级别,并实现定级结果图的自动输出。
Finally, cropland levels are divided according to frequency distribution of synthetic index values of assessment units and the map of results are obtained.
科学家们已研究出如何将不同长度的无线电波划分为频率,这样就能让许多无线电台在同一时间里进行广播而不会相互干扰。
Scientists have learned how to separate radio waves into different lengths called frequencies. This permits many radio stations to broadcast at the same time and not interfere with each other.
安德里亚·戈德史密斯:人们可以采取某种方式来划分频谱,不管是通过时间、频率或者编码加以划分,然后将频段分配给用户,使他们之间的通话不受干扰。
Andrea Goldsmith: you can break up the frequency spectrum in some way whether it's time or frequency or codes so that you assign it to users so they don't interfere with each other.
血钾基因频率在地理分布上存在一定规律,基本符合中亚以东南绵羊系统划分。
There was some disciplinarians about blood potassium gene frequencies in geography distribution and if was accorded with east and south of Central Asian sheep system distribution.
得出流体流速、流体压力、划分单元个数等对管道的频率和振型的影响规律。
The effective law on the frequence and modal of vibration due to the fluid velocity, the fluid press and the number of elements was obtained.
根据往复式内燃机工作的本质特征,选择了与传统时间域及频率域不同的曲轴角度域及频率域,对汽车发动机的瞬时转速波动进行了划分。
According to the basic characteristics of internal combustion engines, crank Angle domain and its frequency domain were chosen, and engine momentary speed fluctuations were divided.
本文根据史料记载特点,提出了古洪水鉴别原则,并就历史洪水序列的检验、洪水发生频率的划分、洪水演变趋势的定量刻划等问题进行了讨论。
The paper proposed the principles of historical flood diagnosis in terms of historical record characteristics and discussed the problems such as the check of historical flood series and so on.
讨论其频率规划及功能模块划分,论述了关键指标设计、分析及实现,最后给出了测试结果。
Subsequently, the frequency scheme and function modules are specified, the key specifications are analyzed, and the testing result is presented.
安德里亚·戈德史密斯:人们可以采取某种方式来划分频谱,不管是通过时间、频率或者编码加以划分,然后将频段分配给用户,使他们之间的通话不受干扰。
Andrea Goldsmith: You can break up the frequency spectrum in some way whether it 's time or frequency or codes so that assign it to users so they don't interfere with each other.
由于不同频率段反映的变形信息不同,因此将频率段按照谐振点个数平均划分为三个区段。
The resonant points of frequency response curve at different frequency represent different information of winding deformation.
由于不同频率段反映的变形信息不同,因此将频率段按照谐振点个数平均划分为三个区段。
The resonant points of frequency response curve at different frequency represent different information of winding deformation.
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