查询词典 radio frequency

In 2005, a group of MIT students conducted a formal study using aluminum foil and radio signals. Their surprising finding: Tinfoil hats may actually amplify radio frequency signals.

2005年，一群麻省理工学生用锡箔和无线电信号进行了正式研究，他们惊讶地发现：锡帽实际上可能放大无线电频率信号。

In 2005, a group of MIT students conducted a formal studyusing aluminum foil and radio signals. Their surprising finding:Tinfoil hats may actually amplify radio frequency signals.

2005年，一群麻省理工学生用锡箔和无线电信号进行了正式研究，他们惊讶地发现：锡帽实际上可能放大无线电频率信号。

Radio transmissioil means that the information from the computer is modulated into ultrahigh frequency by radio receiver-transmitter.and then transmitted and received in free spac...

无线电传输是将计算机送来的信息经无线收发信机调制成超高频信号，在空间进行传输和接收。

ATbstract: he small frequency modulated transmitter, the power is small, may launch the wireless signal, accepts the signal with the radio, satisfies certain transmission range, Circuit easy system, low cost, power output does not exceed 5-8 mW, firing range to be in the housing area of about 100 meters, with an ordinary FM radio receivers, demonstrating his superb sensitivity and clarity, the most circuit design challenges of the part is only used 3 V power supply, and half-wave antenna will be such a launch capability.simultaneously can input the sound signal, may install modulation surveillance table to serve as the monitoring device, although the power is not very big, but should the interference protection normal radiobroadcasting signal.

小型调频发射机，功率小，可以发射无线信号，用收音机接受信号，满足一定的发射距离。电路简单易制，造价低廉，输出功率不超过5－8mW，发射范围在房屋区可至100米左右，用一部普通的FM收音机接收，显示其灵敏度和清晰度俱佳，电路设计中最富挑战性的部份就是只需用3V电源和半波天线便有如此的发射能力。同时能够输入声音信号，可安装调制监视表头用作监视器，虽然功率不是很大，但是应该防止干扰正常的无线广播信号。

Moreover, the high frequency radio can also be used in the optical label switching. The subcarrier multiplexing optical label and optical carrier suppression and separation optical label are based on modulating lightwave by radio, which were studied much and maybe have a good future.

另外，在光标记交换领域，利用高频的无线信号调制光波实现的副载波光标记和光载波抑制光标记现已有一些研究，这两种标记实现方案有很好的应用前景，但还有一些问题需要深入研究，本论文对SCM光标记信号的传输距离受限问题和OCSS光标记分组的全光波长变换问题进行了深入研究，并得到了一些有价值的结论。

In this thesis, some characteristics are summarized in WCDMA radio network, such as multi-service and multi-bit ratio, soft handover factor , cell breathing, pilot frequency pollution, self-interference specialty and so on, and at the same time, an in-depth analysis of the difference of WCDMA and GSM in the radio network planning is carried out.

本文概述了WCDMA无线网络多业务多速率、软切换因子、小区呼吸、导频污染、自干扰特性等特点，分析和探讨了WCDMA与GSM无线网络规划的区别。

It joins rapidly, keeps in touch with the characteristic such as being reliable, apply to the radio equipment and electron tube instrument field and join the coaxial cable of the radio frequency

它具有连接迅速，接触可靠等特点，广泛应用于无线电设备和电子仪器领域连接射频同轴电缆。

It joins rapidly, keeps in touch with the characteristic such as being reliable, apply to the radio equipment and electron tube instrument field and join the coaxial cable of the radio frequency extensively.

它具有连接迅速，接触可靠等特点，广泛应用于无线电设备和电子仪器领域连接射频同轴电缆。

However, RFID stands for Radio Frequency Identification, and is also called as Electronic Label. It goes through radio signals to identify specific targets, and reading and writing information, as well as don't need identity system and specific targets to create such as electronic, optics or machinery. Properties of wireless communication, space-penetrating, information tracking and real-time location system/ RTLS will apply for increasing the system capability of safety and protection to Robot.

而「RFID， Radio Frequency Identification 」称之为「无线射频识别」，又称「电子标签」，是一种通信技术，可透过无线电讯号识别特定目标并读写相关资料，而无需识别系统与特定目标即可建立含电子、光学或机械接触，其特性：无线通讯、空间穿透性、资讯历程可追踪与「即时定位系统 RTLS， Real Time Location System」等，必然将成为机器人、机械手臂安全设计与防护的新应用。

The LSB comparator determines the absolute value of the frequency shift of the radio frequency.

LSB比较器确定射频频移的绝对值。

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