英语释义

1. the band of frequencies that carries information in electronic communications and usually modulates a carrier signal

2. of or relating to a communications system in which information is transmitted using a single unmodulated band of frequencies — compare broadband

片语

base-band figuration基带信号成形

base-band shaping基带成形

baseband signal[通信] 基带信号

integrated base-band综合基带

Back base length band下脚脾位长

Base-band signal基频带信号

Base-band filter基带滤波

base-band modem基带数据传输机

base-band signals基频带信号

英汉例句

• digital base band transmission system and analysis of its error codes;

  数字通信系统有基带传输和频带传输两种传输方式。

• the spectrum of amplitude modulated signal are two half magnitude spectrums of base band signal positive and negative shifted by a carrier or r. f. frequency.

  调幅讯号之频谱为一半强度基频讯号之频谱分别正负位移一射频或载波之频率。

• both intermediate and base band frequency sampling schemes may be used in all digital ds/cdma receiver.

  全数字ds/cdma信号接收机既可以采用中频采样方案 ，也可以采用基带采样方案 。

• the digital base band filter based on linear interpolation includes sampling module, interpolation module, linear value calculating module and fir low-pass module.

  本发明公开了一种基于线性插值的数字基带滤波器，包括采样模块、插值模块、线性值计算模块和fir低通模块；

• digital base band converter;

  数字基带转换器；

• but there is mosaic impact in the enlarged picture because this method can「t adequately attenuate the vertical frequency off the base band in the horizontal and vertical direction.

  这种方法在对角线方向上的频率响应特性较好，而在水平和垂直方向上对基带外的垂直频谱衰减不够，导致放大图像中的方块效应。

• ais system is composed with communication processing module, base band processing module, radio module and interface module.

  ais系统由通信处理模块、基带处理模块、射频模块和接口模块组成。

• chapter 4 is about the digital front end design of base band system.

  第四章介绍了数字基带系统设计中数字前端设计。

• it」s efficiency and stability is of great importance to the whole base band systems's processing ability.

  专用业务信道负责用户业务和信令的传送，它的稳定性和处理效率对整个基带处理系统至关重要。

• a base band synchronized method based on mmse criterion which can be used in mfsk, mdpsk even though qam is presented.

  本文提出了一种基于最小均方误差準则（mmse）的基带软件码元同步算法，可以实现多进制fsk、dpsk甚至qam等信号的码元同步。

• the horizontal base band of the vegetation in this area is tropical rain forest and seasonal rain forest. moreover characteristics of regional distribution and …

  保护区植被的水平基带是热带雨林和季雨林，并介绍了水平、垂直分布规律和地域分布特征。

• this article has designed an elliptic low pass filter for the generation of base band signals in a wideband chirp source.

  对宽带线性调频源中基带信号产生时所用的低通滤波器进行了设计。

• base band process module modulate and demodulate the signal.

  基带处理模块主要负责信号的调制及解调；

• the purpose of this paper is to meet this need, that is to design a base band signal generator based on wcdma downlink.

  本论文的目的就是设计一个基于wcdma下行链路的基带信号发生器。

• vlbi; polyphase structure; base band converter;

  vlbi；多相结构； 数字基带转换器；

• this paper reports two computerized methods for decoding the digital base band signal obtained from meteorological satellite.

  论述利用计算机对气象卫星数字基带信号解码的两种方法。

• then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.

  然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏，从而达到应用的目的。

• then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.

  其思路是将信号先通过单边带调制，将较低频率调制到需要的频率范围；然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏，从而达到应用的目的。

• in addition the application of stft for base band analytic signal based frequency hopping signal recognition, tracking and parameter extraction is investigated.

  另外研究了stft在基于基带解析信号的跳频信号识别、跟蹤、以及参数提取中的应用。

• another challenge for mimo base band processor design comes from error correcting codes.

  纠错编码技术也是mimo系统设计的一个关键问题。

• the first method is tracing and making intellectual decision for the base band by using the open loop policy.

  方法一是在开环条件下对基带采样跟蹤与智能判决。

• in wcdma system, downlink base band modulation involves a lot of channels and complex functions, resulting in prolonged time and higher costs for test and verification.

  wcdma中下行链路基带调制信道多，功能复杂，对其测试和验证所花费的时间和费用也随之提高。

• since the cmos technology used in the part of base band design is relatively very mature, it is unreasonable to change the technology of base band.

  由于基带部分的cmos工艺相对来讲已经比较成熟，改变基带部分工艺的可能性和可行性不大。

• it can satisfy the requirement of base band data transfer.

  可以满足基带数据传输的要求。

• typically the interface between these devices (the radio and the base band processor) is an analog in-phase and quadrature (i and q) link.

  通常这些器件（射频和基带处理器）间的接口是同向和正交（i和q）链路。

• according to the well developed radion frequency (rf) simulation, the complexity of base band (bb) simulation degrades, but unfortunately, the performance degrades too.

  在射频频段进行信道模拟的真实性较高但较复杂，在基带进行的信道模拟在复杂度降低的同时，影响了真实性。

• then, the paper realizes each module, and generate the ideal wcdma base band signal.

  在此理论基础上，设计各个模块，产生标準的wcdma基带信号。