spectrum of carrier

  • 释义

    载波的频谱

数据更新时间:2026-08-21 21:00:57
1、

This paper presents a power line communication method adopting the SSC ( spread spectrum carrier) technology on the basis of analyzing the communication channels of the central metering and re-cording system.

本文在分析了集中抄表系统通信信道的基础上,提出来用扩频载波技术的电力线载波通信方式。

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2、

According to the minority carrier lifetime and X-ray photoelectron spectrum ( XPS) tests, systematical analysis on the effect of different factors on the passivation performance was carried out. Also, two different wet chemical treatments were compared.

以微电导少子寿命测试仪和X射线光电子能谱仪测试结果作为依据,对各个影响因素进行了系统的分析,比较不同工艺条件下的钝化效果。

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3、

It also points out the acquisition methods of radar signals in time domain of circular scan and the spectrum properties, and introduces the collecting-processing procedure for radar signals of moving targets with high speed to estimate the intention and threat of the target carrier.

指出了圆周扫描搜索雷达信号时域上的截获方法及其频域上的频谱特征,同时还指出了对高速运动目标雷达信号的采集-处理过程,以判断其载体的运动动机和威胁程度。

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4、

For carrier and bit synchronization, realize those using relative ways. 4. Based on the digital part of the system, test the spectrum-spread receiver at IF, under the condition of large dynamic range, verify the pseudo-code synchronization, carrier synchronization and bit synchronization.

基于弹载测控系统的数字部分,对扩频数字接收机进行中频联试,通过联试结果验证了大动态下伪码同步、载波同步、位同步实现的正确性。

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5、

CCDF, which can measure multi-carrier signals very effectively, is one of the important technologies of real-time spectrum analyzer.

CCDF测量是实时频谱分析仪的关键技术之一,对于测量多载波信号非常有用。

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6、

The cyclic spectrum of cyclostationary signal includes information as carrier frequency, chip width and amplitude.

循环平稳信号的循环谱包含了载频 、 码片时宽和幅度等信息.

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7、

Carrier dyeing is one of the most popular process for pure polyester and its blended fabric dyeing. Qualitative analysis of 23 types of carriers containing organo chloride can be carried out by chromatographic fractionation and mass spectrum, and be quantified by GC MS analytical technology.

载体染色工艺是聚酯纤维纯纺及混纺产品常用的染色工艺,采用色谱分离、质谱定性检测和按色谱图定量的GC MS分析技术可以检测23种含氯有机载体。

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