查询词典 radio receiver

The autodyne Doppler radio fuze transmitter-receiver is a important device of fuze remote control setting.

自差式多普勒无线电引信发射和接收装置是引信遥控装定的重要内容。

Radio fuze jammer ; digital receiver ; double channel bandpass sampling ; polyphase filtering ; digital channelizing

无线电引信干扰机；数字接收机；双通道带通采样；多相滤波；数字信道化

Parametric amplifier in a number of microwave devices, widely used, usually in radar, navigation, electronic warfare, radio astronomy microwave systems such as receiver front-end amplifier, greatly increased the sensitivity of the receiver.

参量放大器在许多微波设备中得到广泛的应用，通常在雷达、导航、电子对抗、射电天文等微波系统中作接收机前端放大器，大大提高了接收机的灵敏度。

The IAM-93516 is ideally suited for frequency down conversion for base station radio card receiver, microwave link receiver, MMDS, modulation and demodulation for receiver and general purpose resistive FET mixer, which require high linearity.

IAM-93516是理想的适合无线电基站图表接受器、微波连接器、MMDS的下变频器和接受端的调制器、解调器，一般的用途FET混频器，需要有很到的线性度。

A system and method of information dissemination that permits the user to listen to the specific content of information when and where he or she wants to. A radio or television receiver system receives information from an FM subcarrier, a television vertical blanking interval transmission, an active picture area television transmission, a television separate audio program transmission or a dedicated radio channel and stores the transmitted information in a memory. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of the information.

一种信息传播的系统及方法，当他或她希望的时候及场合，允许用户，收听具体的信息内容，射频电视接收机系统从FM副载波、电视垂直消隐间隔发送、活动图象区电视发送、电视分离音频节目发送或专用无线电频道接收信息，并将所发送的信息存储在一个存储器中，用户接口通过一组控制分级数据库的菜单实现从存储器中对存储的信息的选择，以存取专项信息。

Because the traditional wireless microphone uses the frequency low silent chain, all is analyzes the radio-frequency signal the intensity, therefore they cannot and need the noise the signal differentiates; In the noisy radio frequency environment (for example digital equipment and so on CD/VCD/LD send out massive overtones) under use, when this launcher signal weak or closure, the silent chain possibly can open suddenly, the receiver can send out the intense demolition noise.

传统无线麦克风因采用频率低的静噪电路，都是分析射频信号的强度，所以它们不能把噪音和需要的信号区分开来；在嘈杂的射频环境(如CD/VCD/LD等数码设备散发出的大量谐波)下使用，在该发射器的信号微弱或关闭时，静噪电路可能会忽然打开，接收机就会发出强烈的爆破噪声。

In wireless broadband digital communication, Inter-Symbol Interference caused by time disperse of radio channel is one of main factors that limit bandwidth of communicated information and system performance of communication. In receiver, Orthogonal Frequency Division Multiplexing system can easily cancel ISI and equalize frequency-selective fadings that are both caused by time disperse of radio channel.

在这一系统中，无线信道时延扩展引起的符号间干扰是限制传输性能和信息速率的主要因素之一；而在消除符号间干扰和均衡由无线信道时延扩展引起的频率选择性衰落方面，正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术具有明显优势。

Antenna for radio wave transmitter or receiver with a metal device (such as strokes, lines or line order) in the radio equipment used to launch or receive electromagnetic components.

在无线电设备中用来发射或接收电磁波的部件。

The RTU-250 Radio/Telephone Interface Unit interfaces the transmitter and receiver of a radio system to a telephone network so that phone calls may be relayed over a radio link.

RTU-250电台/电话界面装置将电台系统中的发射机和接收机同电话网络连接起来，令电话可以转接到无线电链路中。

Based on analyses of observations from the short-spaced GPS receiver array at Wuhan, the storm-time ionospheric irregularities which resulted in scintillations and rapid TEC fluctuations showed westward drifts between 21∶30 and 03∶00 LT with drift velocities changing from ~40 to ~130 m/s. And based on analyses of observations from the ultra-short spaced GPS receiver chain at Guilin, ionospheric irregularities which resulted in the L-band radio wave scintillations, showed eastward drifts around local midnight ranging from ~70 to ~55 m/s on the quiet-day and westward drifts ranging from ~150 to ~50 m/s before the midnight and eastward drifts after the midnight ranging from ~25 to ~65 m/s on the disturbed day.

短间距台网和超短间距台链观测实例的计算结果表明，暴时武汉地区引起TEC快速起伏的电离层不规则结构沿纬圈向西漂移，21∶30至03∶00 LT，西向漂移速度在约40 m/s至130 m/s的范围内变化；在桂林地区，磁静日午夜前后引起L波段电波闪烁的电离层不规则结构沿纬圈向东漂移，漂移速度从约70 m/s下降到约55 m/s，磁扰日午夜前不规则结构向西漂移，速度从约150 m/s下降到约50 m/s，午夜后转为向东漂移，速度从约25 m/s上升到约65 m/s。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。