Multipath is one of the major sources in the Spread-spectrum ranging systems.
多径是扩频测距系统的主要误差源之一。
The design scheme of spread-spectrum system based on sequence pairs is discussed.
并对基于序列偶的扩频通信系统设计方案进行了讨论。
This paper studies the optimum detection model of the multiplicative spread-spectrum watermark embedded by fixed strength.
对以固定强度嵌入的乘性扩频水印的最优检测模型进行了研究。
An algorithm for the suppression of narrowband interference in the direct sequence spread-spectrum (DSSS) systems is presented.
提出了直接序列扩频通信系统中抑制窄带干扰的一种算法。
Also, a spread-spectrum attachment was to be made available for beaming data across town or across the country. The target price was $6000.
除此之外还有一种扩频通信附件可以跨越市区或乡村进行通讯，售价6000美元。
The algorithm is applicable to precise measuring of the PN code phase of satellite positioning signals and spread-spectrum ranging signals.
该算法的主要应用领域为卫星定位信号和直序扩频测距信号PN码相位的精确测量。
Experimental results show that this scheme can generate much more spread-spectrum sequences than single chaotic map to satisfy the demand of spread-spectrum communication.
计算机仿真结果表明，该模型产生的混沌扩频序列调整更容易，比基于单一混沌映射能产生更多符合扩频通信要求的扩频序列。
It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.
主要是数字调制系统、扩展频谱通信原理和直接序列扩频系统等内容。
Direct sequence spread spectrum communications is one of the most typical spread spectrum modes.
其中直接序列扩频通信是目前使用最典型的扩频工作方式。
Methods and systems for time synchronizing a receiver to a spread spectrum signal are described.
本发明描述了接收机与扩频信号进行时间同步的方法和系统。
This paper introduces the principle of spread spectrum communication, stresses the application of spread spectrum technique, and summarily introduces the broadband access technology of power line .
本文介绍了扩频通信的基本原理，重点论述扩频通信技术在家庭测控网络中的应用，同时介绍了电力线宽带接入技术。
In order to supply the actual BPSK DS-SS signal to verify the algorithms, this dissertation present a design method of spread spectrum signal generator with adjustable muti-parameter in detail.
为了给验证算法提供现实的BPSK调制的直接序列扩频信号，本文详细介绍了一种多参数可调的扩频信号源的设计方案。
Among the use of various technologies in WLL, the use of spread spectrum is increasing due to its high data rate, no license in certain condition, etc.
在无线本地环路的各种技术手段中，扩频技术以其高数据速率和在一定条件下无需频率许可证等优点，在数据传输中得到越来越广泛的应用。
The spread spectrum communication with an aperiodic PN code and under strong man-made jammers has an important significance in military communications.
强人为干扰环境下的非周期扩频码的扩频通信在军事上具有重要的意义。
An intelligent lighting system for railway goods yard based on spread spectrum power line carrier communication technique is proposed.
用扩频电力线载波通信技术设计了铁路站场智能化照明系统。
The performance of Direct Sequence Spread Spectrum(DSSS) in severe pulsed noise interference will be badly degraded when the duty factor is small.
当脉冲干扰占空比较小时，干扰能量集中，导致直接序列扩频（DSSS）系统的误码性能较差。
There are several difficult problems in the research of spread spectrum FH/DS system.
在研制扩展频谱FH/DS系统时，会遇到一些很困难的问题。
Spread spectrum communication is the most efficient mode in the strong noise environment such as the coal mine.
扩频通信是矿井等强噪声环境中最有效的通信方式。
There are two main alternatives, Direct Sequence Spread Spectrum and Frequency Hopping Spread Spectrum.
主要有两种选择，直接序列扩频和跳频扩频。
This paper expounds the advantage of spread spectrum, principle and important parameters of the system, and the international regulation.
本文阐述了扩频技术的优点、各种扩频系统（直接扩频、跳频和混合系统）的原理和主要参数，以及国际上的规定。
Through the analysis of the spread spectrum and power line carrier spectrum, the authors design a set of remote reading system.
通过对扩频通信和电力线载波通信特点的分析，设计实现了一套远程抄表系统。
Spectra expanding of Spread spectrum communication system makes use of the spread spectrum function to realize, the typical spread spectrum function is pseudo random sequence code.
直接系列扩频通信系统的频谱扩展是借助于扩频函数而实现的，典型的扩频函数就是伪随机序列码。
Spread - spectrum technique has been widely used in the burgeoning individual wireless communication.
扩频技术在新兴的个人无线通信中得到了广泛的应用。
A new modulated lapped biorthogonal transform (MLBT) was introduced for narrowband interference suppression in spread spectrum communications.
引入一种新的调制重叠双正交变换(MLBT)用于扩频通信窄带干扰抑制。
Traditional blind additive ss (spread spectrum) watermarking systems have such features: high robustness, low detection value and small capacity.
传统盲加性扩频水印系统具有鲁棒性高、检测值低、容量小的特点。
The methods of acquisition and tracking of spread spectrum(SS) signals, hardware design and software flow, are discussed in detail.
文中较详细地讨论了扩频信号的捕获跟踪方法、硬件设计及软件流程。
First, the basic principles of power line communication and spread spectrum are introduced.
论文首先介绍了电力线载波通信和扩频技术的基本原理。
This article has described one method of transmitting physiological data through wireless spread spectrum communication.
本文描述了一种通过扩频通讯的方式实现生理数据无线传输的方法。
The ownership prover insert the watermark into the host signal using symmetric watermark technology based on spread spectrum.
所有权证明者采用基于扩频的对称水印技术，在宿主信号中嵌入水印；
The ownership prover insert the watermark into the host signal using symmetric watermark technology based on spread spectrum.
所有权证明者采用基于扩频的对称水印技术，在宿主信号中嵌入水印；
应用推荐