扩频技术

码分多址（CDMA）技术的基本原理是采用扩频技术。

The basic theory of CDMA technology is the technology of spread spectrum .

微波DS扩频技术在军事通信中的应用

The Application of Microwave Spread Spectrum Technique in Military Data Transmission

无线扩频技术在碾压GPS实时监控中的应用

Application of wireless spread-spectrum in GPS real-time supervision for roller compaction

基于跳频扩频技术的抗干扰adhoc网络协议

Frequency Hopping-Based Anti-jam Protocol in Wireless Ad Hoc Network

测风采用GPS扩频技术，大幅度提高测风数据获取率。

By means of GPS frequency-extending technology , RS92 's wind data acquirability is greatly improved .

码分多址技术（CDMA）是一种先进的无线扩频技术。

CDMA is a kind of advanced wireless spread spectrum technique .

跻身未来的电力线通信（五）宽带PLC的扩频技术融入

PREDICTIVE SCHEMES FOR FUTURE POWER LINE COMMUNICATION Part Five Combination of Spread Spectrum Technology in the Broadband PLC

利用无线扩频技术组建企业的INTRANET

Building Intranet in an Enterprise by Spread Spectrum Communication Technology

扩频技术在CDMA中的应用

The Application of Spread Spectrum Technology in CDMA

调制技术可以应用在一个多用户CDMA系统中的各种形式的扩频技术中。

In a multi-user CDMA system several forms of Spread Spectrum modulation techniques are used .

基于扩频技术的电焊机无线电遥控系统的研究基于DSP的无线通信系统在遥控插秧机中的应用

Study of Wireless Control Welding Machine Based on Spread-Spectrum Communication Technology ; Wireless Communication Based on DSP in Rice Planter of Telecontrol

扩频技术在VTS中应用的研究

Study on the Application of the Spread Spectrum Technique in VTS

CDMA是一种以宽带扩频技术为基础的多址接入方式，同时也是一种自干扰系统。

CDMA is a form of broadband spread spectrum technology-based multiple access methods , and also a kind of self-interference systems .

提出一种利用DS扩频技术实现卫星重叠通信的方案。

It was proposed that the project of satellite overlay communication with direct sequence spectrum spreading ( DSSS ) .

在第三代移动通信技术中由于基于扩频技术的CDMA所具有的优越性，受到人们越来越多的关注。

In the3rd generation mobile communication system , CDMA , which based on DS-SS technology has got more and more attention for its superiority .

基于扩频技术的CDMA系统的应用，能够带来系统容量和通信质量的极大提高。

The CDMA system which is based on technology spread spectrum technology can provide remarkable promotion of system capacity and the quality of communication .

为此，论文对防撞雷达的多目标问题、LFM（LinearFrequencyModulated）信号的调频非线性度问题、噪声干扰抑制、扩频技术应用等方面作了研究。

Therefore , the non-linearity of LFM ( linear Frequency Modulated ), the multi-object problems , the noise interferences restraining and the spread spectrum technique are studied in this dissertation .

基于802.11b的无线传输扩频技术

The Wireless Transport Technology based on 802.11b in Digital Communication System in Next Generation

声表面波（SAW）器件作为信号处理器在现代扩频技术中已获得广泛的应用，推动了信号保密、抗干扰技术在通信、雷达、电子对抗等军用电子系统中的应用。

SAW device has found wide applications in modern spread spectrum system as the signal-processing device , which helps the use of technologies of secret signal process and anti-interference in communication , radar and electronic countermeasure .

通过该方案，可以得到应用DS扩频技术进行卫星重叠通信时DS扩频信号中心频率位置选择、带宽设置和给定条件下的可实现的最大重叠容量。

Applying the project the center frequency position , bandwidth and maximum capacity under given conditions were got . Also the computer simulations were done .

利用DS扩频技术实现卫星重叠通信，是有效利用现有卫星通信系统资源提高系统容量和开辟新通信途径的重要手段。

Satellite overlay communication technology by DSSS is an important means for utilizing satellite communication source to increase system capacity and create new communication approach .

由于SOC的信号极其微弱，信干比很低，所以必须采用一些特殊技术，其中M元扩频技术就是一种有用的技术。

Since its signal is extreme weak , it is necessary to use some special techniques , where M-ary spread spectrum technique is a very useful candidate .

采用直接序列扩频技术和KissBind技术，自动实现收发两端的绑定和连接，保证多个无线外设正常工作。

Adopting the DSSS and Kiss Bind technology , the transmitter and the receiver automatically establish the bind and connection , guaranteeing much embedded wireless equipment work normally .

结合OFDM技术和扩频技术，建立了一种时频联合编码水声通信系统模型（TimeandFrequencyOFDM，TF-OFDM），给出了TF-OFDM模型的信号检测和解码方法。

Allied OFDM and SS technology to build a time and frequency coding model ( TF-OFDM ), presents a signal detection and decoding method . 3 .

该算法在传统的基于DWT和扩频技术的有意义数字水印算法中，利用小波变换的多分辨率特性来进行图像的小波分解和重构，利用数字扩频技术来实现嵌入和检测水印。

It decomposed and reconstructed a digital image using multi-resolution ratio of wavelet transform based on the discrete wavelet transform and digital spread spectrum technology .

应用扩频技术而生成的基于DCT域的数字水印算法，通过纹理块的选择，有效地保证了嵌入水印的不可见性；

Digital watermarking algorithm based on DCT was proposed by applying the spread spectrum technique . The imperceptibility of watermark was guaranteed by selecting the textured image blocks appropriately ;

在未来的4G的通信中结合了OFDM和CDMA优点，采用多载波和扩频技术的MC-CDMA被认为是非常具发展前景的通信系统之一。

MC-CDMA , which combines the advantages of CDMA and OFDM , multi-carrier spread-spectrum technology is considered to be a very promising one in the future 4G communication systems .

通过分析开关电源的骚扰特性，提出一种基于扩频技术的方法降低开关电源的电磁骚扰（EMI），并通过试验证明这种方法非常有效。

By analyzing the EMI special character of switch power , a new technique based on spread spectrum had been found out and used to optimize the EMI of switch power .

文章针对非屏蔽塑料外壳设计的终端产品A、产品B在辐射发射测试中存在的问题，提出了采用扩频技术来抑制高频辐射骚扰的解决方案，并用实验结果证明了此方案是可行的。

The paper analyze the radiated disturbance problem in electromagnetic radiated testing about unshielded enclosure terminal product A and B , and give the specified solution plan to reduce the high-frequency radiated disturbance through using spread-spectrum technique and this experiment result prove that the plan is practicable .

在许多便携式设备中，其开关电源的噪声和电磁干扰（EMI）是亟待解决的问题，比较好的办法是利用扩频技术来减少EMI信号的功率成分。

In many portable instruments , the noise and EMI of its switch power supply must be solved , the preferable method is that EMI power is reduced with spread spectrum frequency technique .