The method of CAZAC sequence correlation offers the better characteristics of burst capture at low Eb/N0.
突发载波捕获和同步是TDMA系统的关键技术,使用数据序列辅助判决可有效缩短该处理过程需要的时间;在低接收信噪比下使用CAZAC序列的相关处理能够获得较高的突发捕获性能;比较了CAZAC序列和"1010"序列的载波和时钟同步误差估计性能,分析了它们在低信噪比门限时对信号快速捕获能力的影响。
On the TC/MAX criterion for code acquisition and its application to UWB systems;
TC/MAX码捕获准则及其在超宽带系统中的应用
Presents a new code acquisition method to solve the problem of long code-acquisition time in high dynamic DSSS receivers having large frequency offset.
针对接收信号存在大频偏的高动态直扩接收机伪码捕获时间长的问题,分析了高动态环境下匹配滤波检测器相关长度与相关后输出信噪比的关系,比较了相关后的几种检测算法的性能,分析了FFT校频技术的性能。
It is studied that the code acquisition technology of direct sequence spread spectrum system in LEO satellite communication.
研究了用于低轨卫星通信的直接序列扩频系统的码捕获技术。
Study on one DS-SS PN Code Acquisition System;
一种DS-SS伪码捕获系统研究
PN code acquisition method based on prepositive 3-order correlated detection
基于前置三阶相关检测的高性能直扩伪码捕获
This paper proposed a PN code acquisition method based on IF sampling to implement a new type of satellite receiver.
本文针对新型的卫星用接收机伪码捕获的性能指标要求 ,设计了一种基于中频直接采样数字化的伪码捕获算法。
Research of PN code acquisition under large frequency offset and low signal to noise ratio in DS spread spectrum;
大频偏低信噪比下直扩系统中的PN码捕获研究
This article introduces the design and realization of IF GPS receiver digitalization in DS Orientation system, and gives a solution to the realization of IF digitalization, digital downconvrsion, PN code acquisition, carrier synchronization based on FPGA.
介绍了直接扩频序列系统的中频数字GPS接收机的设计和实现 ,给出了基于FPGA实现中频数字化、数字下变频、PN码捕获和载波同步等关键问题的解决方
The problem of PN code acquisition is the key technique in DSSS receiver when there are narrowband interferences in the received signal.
变换域干扰检测与PN码捕获判决都需要估计接收机背景噪声功率,本文在变换域谱线幅度平方服从指数分布假设下,利用中位数估计理论对存在窄带干扰接收信号的背景噪声功率进行估计,实现干扰检测门限和PN码捕获判决门限的自适应设置。
This paper introduces the realization of a PN acquisition scheme in burst DSSS communication,which is compared with traditional classical methods and attains a better result.
提出了一种混合多址系统伪码捕获的实现结构,并且与几种经典结果进行了性能比较,结果表明这种方法具有一定优越性。
A new method called subsection polar correlation is introduced and then is used in estimation of several DS-BPSK signal parameters and in PN acquisition.
介绍了一种分段极性相关的方法,并将其应用于DS-BPSK信号的多个参数估计和伪码捕获。
The Acquisition Schemes of GPS C/A Code Signals Based on Software Receiver;
基于GPS软件接收机的C/A码捕获方案
Performance analysis of bidirectional-slipping-acquisition system for PN code acquisition
双向滑动PN码捕获系统的性能分析
SIMULINK Implementation of PN Code Acquisition in Spread-Spectrum Communications
扩频通信中PN码捕获的SIMULINK仿真实现
Analysis on Acquisition Performance of PN Code Based on DMF Under the Condition of Frequency Offset
频偏条件下基于DMF伪码捕获性能分析
PN Code Acquisition Sum-Product Algorithm and Performance Analysis Based on Tanner Graph
Tanner图和积算法的伪码捕获及性能分析
An Improved PMF-FFT C/A Code Acquisition Method
一种改进的PMF-FFT短码捕获方法
Decoy: A Malware Collection System Based On Active Technology
Decoy:基于主动技术的恶意代码捕获系统
Analysis on PMF-FFT Based Acquisition of PN Code
基于PMF-FFT的PN码捕获方法及性能
The Research of Code Acquisition Scheme in DS/CDMA Spread Spectrum Communication Systems;
DS/CDMA扩频通信系统中编码捕获方法的研究
Application Research of Wavelet Transform in Spread Spectrum Code Acquisition of DS/SS;
小波变换在直扩系统扩频码捕获中的应用研究
Research on the Acquisition of C/A Code in Weak Signals Enviromnet of GPS Receiver;
导航接收机在弱信号下C/A码捕获技术研究
Research on the Probobility in Acquisition of C/A Code of GPS Receiver Under Electronic Jamming;
电子干扰下GPS接收机C/A码捕获概率的分析
The Research of GPS C/A Code Acquisition by FFT Algoriyhm Based on FPGA Chip
基于FPGAt利用FFT算法实现GPS C/A码捕获的研究
The Research and Implementation of PN-Code Capture in the Low-SNR Enviornment
低信噪比环境下扩频码捕获的研究与实现
Research on Frequency Offset Estimation of PN Code Acquisition Based on DMF under the Condition of High Dynamic
高动态下基于DMF的伪码捕获频差估计研究
The Research on the Method of Catching GPS Direct P(Y) Code;
GPS P（Y）码直接捕获方法研究
GPS PN Code Acquisition and Tracking Technology Research
GPS扩频码的捕获与跟踪技术研究
Fast Capture Scheme of PN Code based on FPGA
基于FPGA实现PN码快速捕获方案的设计