Following the RX signal path, low noise amplifiers, mixer topologies and base band filters are presented.
跟随着RX信号路径，我们会依次讲解低噪声放大器，混频器拓扑和基带滤波器。
The demo system herein consists of three parts: base band transmitting board, baseband receiving boards and MPU board.
实验验证系统由基带发送、基带接收、主控三部分构成。
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。
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。
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。
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。
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。
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。
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、跟踪、以及参数提取中的应用。
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。
Then this paper gives the detail of the base band video signal process system of the Secondary Surveillance Radar, including its system framework, hardware and software parts.
然后本文详细介绍了一种二次雷达基带处理的实现，包括其系统构架、硬件模块和软件模块。
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。
When processing digital base-band, the signal of pilot-frequency was taken out from normal carrier channel and it would be used for transmitting pseudo pilot-frequency.
在数字基带处理时，从正常载频信道中提取出导频信号，用于伪导频的发射。
SAR echo base-band signal produce module is the key unit of the SAR echo signal simulator, its design affects the performance of the SAR echo signal simulator.
SAR目标回波基带信号产生模块是SAR目标回波模拟器的关键单元之一，其设计影响到模拟器系统的性能。
Clutter base-band modulating data with this method is applied into a radar clutter simulator successfully.
用该种方法生成的杂波基带调制数据已成功地用于某型雷达杂波模拟器。
In this paper a fast algorithm for channel estimation in downlink TD-SCDMA systems has been proposed by analyzing the discrete-time base-band transmission model.
本文在分析TD _SCDMA系统下行链路基带离散时间传输模型的基础上，提出了一种下行链路信道估计的快速算法，并结合终端联合检测算法进行了计算机仿真。
Finally, all the modules are integrated to establish a fundamental OFDM base-band processing system.
最后利用这些模块组建了最基本的OFDM基带信号处理系统。
OFDM can simplify the base-band processing unit of the receiver greatly and can increase the data rate.
OFDM可以使接收机中的基带处理单元大大简化，并且可以提高数据速率。
A method based on phase correction is proposed to enhance the performance of suppressing narrow-band interference of base-band direct sequence spread spectrum (DSSS) receiver.
为提高基带直扩接收机的抗窄带干扰能力，提出了一种相位校正方法。
These modules were comprised of the realization of FEC and the decode of Viterbi, the shape of base-band wave, FFT and so on.
这些关键模块包括基带系统中的差错控制编码和维特比译码，成形滤波，FFT变换等。
Based on the principle of digital orthogonal modulation, the generation question of wide-band signal is factually identical with how to generate base-band signal with high sampling in time domain.
在数字正交调制原理的基础上，宽带信号的产生问题实际上转换为如何得到高采样率下的时域基带信号。
Based on the principle of digital orthogonal modulation, the generation question of wide-band signal is factually identical with how to generate base-band signal with high sampling in time domain.
在数字正交调制原理的基础上，宽带信号的产生问题实际上转换为如何得到高采样率下的时域基带信号。
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