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1)  code acquisition
编码捕获
1.
An anti-jamming scheme of code acquisition in spread spectrum communication systems
扩频通信系统中一种消除干扰的编码捕获方法
2.
In order to avoid the deficiency of the conventional schemes for code acquisition,this paper proposes a improved scheme for code acquisition,which could remove the influence of modulation information and random data by cycle-and-add property.
针对传统的编码捕获方法的不足,文中提出了一种改进的捕获方法。
2)  Formation establish
编队捕获
3)  code acquisition
码捕获
1.
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
2.
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。
3.
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。
4)  PN code acquisition
伪码捕获
1.
Study on one DS-SS PN Code Acquisition System;
一种DS-SS伪码捕获系统研究
2.
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
3.
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。
5)  PN code acquisition
PN码捕获
1.
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
2.
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
3.
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。
6)  PN Acquisition
伪码捕获
1.
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。
2.
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。
补充资料:编码
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性质:(一)coding  一种转换数据的方法,根据一组含义明确的数据转换法则,用离散的数字代码表示数据或信息。要求进行逆转换时,已转换为代码的数据又能逆转为原来的形式。(二)encode  在生物染色体上,以DNA碱基顺序形式编排的各种蛋白质的氨基酸信息密码。但是氨基酸顺序、起始信号和终止信号都不直接从DNA碱基顺序取得,而是以DNA为模板转录出各种特定的mRNA分子。因mRNA碱基顺序与DNA中的一条链互补,故mRNA必然携带了特定蛋白质的氨基酸顺序信息。mRNA碱基顺序按3个碱基为一组的密码子,对应于一种氨基酸。通过对mRNA顺序从起始密码子到终止密码子的依次“阅读”,就能翻译出所有氨基酸顺序

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