The cheapest way to increase capacity is to add more spectrum or to move a network to a lower frequency, which allows radio waves to penetrate walls more easily.
提高带宽容量最便宜的方法是增加更多频谱或是某个网络降低到更低的频率以使无线电波更容易穿透墙壁。
They suggest that any alien civilisation worth its salt would alight not on the photons of the electromagnetic spectrum-whether optical or radio-frequency-to send messages to other solar systems.
他们指出，任何有头脑的外星文明都不会发射电磁波谱中的光子——无论是可见光波段还是射频波段——向另一个太阳系传送信息。
Spectrum sensing technology is a key component of cognitive radio whose function is to find out the empty frequency bands quickly and reliably.
频谱检测是感知无线电的关键技术之一，要求感知用户可靠、快速地检测频谱空洞。
Radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain.
对于射频噪声，通过平均距离频频法和频域陷波的方法可以去掉；
The trend of the future mobile communication is digital transformation speed raised and radio frequency spectrum resource used sufficiently.
未来移动通信系统的发展趋势之一便是数据传输速率得到极大提高同时无线频谱资源会得到更充分地利用。
Expanding service to some areas of the country will require wireless transmission. But there is a limited amount of radio frequency spectrum available.
在国家其他一些地区扩大网络服务需要无线传输。但是他们只有一个限制数量的无线电频谱。
Spectrum of the amplitude-modulated wave is observed by a radio frequency spectrum analyzer and amplitude values of every spectrum are recorded at the upper sideband or lower sideband.
用射频频谱分析仪观测一个已调波的频谱成分，记录上边带或下边带中各条谱线的幅度值，从而可以根据有关算式计算出调制信号（音频信号）的失真度。
In 2009, the us Federal Communications Commission warned of a looming spectrum crisis: because our mobile devices are so data-hungry we will soon run out of radio-frequency bandwidth.
2009年，美国联邦痛惜委员会警告，关于迫在眉睫的频谱危机：因为我们的移动设备耗费如此大量的数据带宽，我们很快就会用完我们的无线频率带宽。
The generating of pseudo random sequence is one of the key subjects to realize the spread spectrum technique upgrade for BPC low frequency time code radio station.
伪随机序列的产生是实现BPC低频时码发播台扩展频谱技术升级的一个重要环节。
This optimizes the use of available radio-frequency (rf) spectrum while minimizing interference to other use.
这个优化使用可用的射频(RF)光谱同时最小化干扰到其他使用。
So the cognitive radio not only changes the embarrassing situation that there are not frequency channels could be used but also increases the utilization of spectrum.
认知无线电的出现不但改善了某些业务因没有频段不能通信的尴尬局面，而且也提高了频谱利用率。
General speaking, The radio monitoring is to frequency spectrum of manage, including assignment of a radio frequency and plan of spectrum.
一般而言，无线电监测的目的是支持频谱管理工作，包括频率指配及频谱规划等方面。
The Mbssbauer spectrum of amorphous alloys in radio frequency field shows a collapse effect.
在射频场中非晶态合金的穆斯堡尔谱显示崩塌效应。
Network channel is base on frequency hopping and spectrum spread radio stations.
网络信道基于跳频和扩频超短波电台。
Existing predominantly, in the Very Low frequency part of the radio spectrum that corresponds with the audio frequency range, we can experience this activity as audible sound.
尽管这种活动主要存在于无线电声音频率分区的超低频区域，我们还是能够通过听觉来捕捉到它。
Article 50 Radio frequency spectrum resources shall be in the ownership of the state.
第五十条无线电频谱资源属于国家所有。
The band width of the radio-frequency signal for the spread spectrum communication can be spreaded to several times or even thousands of times the band width of the information signal.
扩频通信的射频信号频带宽度，可扩展到信息信号频带宽度的数倍乃至数千倍。
The radio monitoring is the spy that frequency spectrum manage.
无线电监测就像是频谱管理的耳目。
The radio monitoring is the spy that frequency spectrum manage.
无线电监测就像是频谱管理的耳目。
应用推荐