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radio transmission相关的网络例句

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与 radio transmission 相关的网络例句 [注:此内容来源于网络,仅供参考]

In the traditional GSM network planning, the revised Hata model serves as the prototype, and the coefficient in the model formula is tuned according to the data obtained in the radio propagation feature test specific to local actual radio environment, so as to obtain the propagation model for practical prediction. A common digital map only contains the clutter information and the digital terrain model information. So the building designers cannot fully allow for the influence of radio propagation, and can only estimate the influence on the building roughly from a traditional perspective, e.g., consider the influence of different clutters through certain clutter offset.

在传统的GSM网络规划中,一般都以修正的Hata模型为原型,再利用规划软件通过导入针对当地的实际无线环境做无线传播特性测试所得的数据对模型公式中的系数进行修正而得到实际预测用的传播模型,一般使用的数字地图仅包括地物信息和高程信息,因此建筑物对无线传播的影响无法充分考虑,只能从统计意义上对建筑物的影响进行粗略的估计,如通过一定的地物偏移来考虑不同地物的影响。

The first successful radio range-finding experiment occurred in 1924, when the British physicist Sir Edward Victor Appleton used radio echoes to determine the height of the ionosphere, an ionized layer of the upper atmosphere that reflects longer radio waves.

首次成功的无线电范围内调查试验发生在1924年,当英国物理学家尤德爵士维克多阿普尔顿使用的无线电回波,以确定高度,电离层,电离层的上层大气,反映了较长的无线电波。

The key problems of software radio and direct sequence spread spectrum range used in high range radio fuze are discussed. The effects of doppler frequency and carrier's initial random phase are analyzed. A new direct sequence spread spectrum algorithm based on software radio is proposed, by using differential encoding and quadrature demodulating, the effects of doppler frequency and carrier's initial phase on the output of inference filter are eliminated successfully.

研究了软件无线电和直接扩频测距技术在大炸高无线电引信应用中的关键技术问题,分析了由于多普勒效应引起的载波频偏以及载波随机相位对测距的影响,提出了一种基于软件无线电的直接序列扩频解调算法,通过采用差分编码和正交解调的方法,消除了多普勒频偏和载波随机相位对测距的影响。

Later, he competed in a spelling competition that was broadcast on radio. The radio announcer told Willis that he should work in radio.

后来,他参加了一次听广播拼写比赛,这家广播电台的主持人对威利斯说,他应该到广播电台工作。

Radio spectrometer is important method and main instrument of radio astronomy research, through which we can research radio astronomy phenomenon in wide frequency spectrum and continuous time with high frequency resolution and high temporal resolution.

射电频谱仪是通过高的频率分辨率和高的时间分辨率,在广泛的频谱范围内和连续的时间演化上进行射电天文观测的仪器,它是射电天文研究的重要方法和主要工具。

It launched on shore more than two omnidirectional radio beacon stations or radio stations to wave direction , to determine the ship's position can also be used to determine the objective of launching radio waves ...

它以岸上两个以上全方向发射的无线电指向标台或无线广播电台的来波方向,来决定船位,也可用于测定发射无线电波的目标所在。。。

For navigation of ships and aircraft the radio range, radio compass, and radio time signals are widely used.

为船和航空器的航海无线电范围,无线电罗盘,和无线电时间信号广泛被应用。

VHF and HF radio are fitted, together with a radio compass and radio altimeter.

甚高频和高频无线电都装上了无线电罗盘和无线电高度表一起。

For the first time, we study the radio afterglow behavior during the trans-relativistic phase of the fireball shock wave. Considering the trans-relativistic shock dynamic and the synchrotron self-absorption effect of the relativistic electrons on the radio emission, we find that the dense medium model can not only explain the fast decline of the X-ray and optical afterglows of GRB980519, but also account for its radio afterglow quite well.

我们首次研究了致密介质情形下射电余辉在跨相对论阶段的行为,发现考虑到激波的跨相对论动力学和相对论电子的同步自吸收效应对射电辐射的影响,致密介质模型既可以解释GRB980519的快速衰减的X射线和光学余辉,也可以很好地解释其射电余辉的特点。

It is called a radio telescope because a radio antenna is used to observe radio waves emitted by astronomical sources.

它被称为射电望远镜,因为收音机的天线是用来观察天文活动所排放的无线电波。

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Listen,point and check your answers.

听,指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例,经过临床的诊断后,其中施以温针治疗的48例,疗效显著,报道如下。1临床资料本组病例48

Some known methods of remnant pump detection and automatic laser shut-down use communications, such as an OSC.

一些已知的残余泵浦检测和自动激光关断的方法利用诸如OSC的通信。