1) 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。
2) code acquisition
伪码捕获
1.
Optimum design of multiple dwell PN code acquisition system using segment correlation-video integration method;
基于分段相关-视频积累方法的多驻留伪码捕获系统优化设计
2.
Performance analysis of a matched-filter PN code acquisition for direct-sequence spread-spectrum systems;
基于匹配滤波方法的直接序列扩频系统伪码捕获性能分析
3.
According to the fact that the telemetry spread spectrum receiver need meet Doppler frequency offset and dynamic tolerate degree,it is studied that the post detection integration for code acquisition in the presence of phase and frequency uncertainty.
针对遥测扩频系统要适应各种多普勒频移和动态容忍度的问题,研究了存在频率误差情况下的检测后积分(PDI)伪码捕获技术,提出了一种采用部分匹配滤波器与PDI技术结合的实现方案。
3) 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。
4) pseudocode acquisition
伪码捕获
1.
In a spread spectrum communication system,pseudocode acquisition and tracking is the base of communication and the acquisition time has direct effect on system performance.
在扩频通信系统中,伪码捕获跟踪是通信的基础,捕获时间的长短直接影响系统性能。
5) PN-code FFT-acquisition
FFT伪码捕获
6) PRN code acquisition and tracking
伪码捕获和跟踪
1.
The paper gives a mathematical model for the digital PRN code acquisition and tracking process, derives expressions of the detection and false-alarm probabilities, presents the improved double-dwell search strategy and analyzes the dynamic tracking performance and influence of input noise mathematically.
建立了伪码捕获和跟踪过程的数学模型;推导出了伪码捕获的检测概率和虚警概率,提出了改进的双Dwell搜索方法;对一阶、二阶、三阶DDLL的动态跟踪性能及输入随机噪声影响进行了定量分析。
补充资料:HP-241B色带打码机/HP-30手动打码机
适用材料:
塑料薄膜PT、PE、PVC、OPP、KT、铝箔、饮料瓶商标;各种塑料复合材料、塑料袋、纸(不干胶、卡片)、皮革、布;包装容器袋、塑料制品;电子元件外壳。
工作原理及结构特点:
采用热打印带代替油墨打印,采取特殊的活字装卸换字结构,可在任何软包装材料上打印。印字清晰,不易擦掉;卫生干净,无油墨污染之优,是一种经济卫生的打印方式。
HP-241技术参数:
最高速度:70-120次/分 可调
打印间距:任意
打印行数:1-3行
电 压:220V±10% 50Hz
功 率:200W
热打印带宽度:25-35mm
HP-30技术参数:
电 源:220V/50Hz
功 率:≤40W
尺 寸:225×200×155mm
重 量:2.5kg
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条