A new spectrum-reprocessing method based on fourth-order cumulant is presented to estimate the duration of the pseudo noise(PN) sequence of direct spread spectrum sequence(DS-SS) signal without any prior knowledge.
在二次谱方法提取直扩信号扩频周期的基础上,提出了一种基于四阶累积量一维切片的直扩信号二次谱检测法。
Second spectrum is an improved method based on cepstrum .
二次谱法是基于倒谱法的一种改进的基音检测方法。
Estimation of PN code period of DS-UWB signals based on reprocessing power spectrum
基于二次谱算法的DS-UWB信号伪码周期估计
collection angle
收集角 -二次离子质谱术
secondary ion mass spectroanalyzer
二次离子质谱分析器
Target spectroscopy in hyphenated chromatography overlapping peaks for two projection resolution;
联用色谱重叠峰中目标光谱的二次投影分辨
The Secondary Use of Broadcast Television Spectrum Based on Spectral Correlation Technology
基于谱相关技术的广播电视频谱二次利用
sensitivity factor
灵敏度因子(二次离子质谱术)
useful ion yield
有用离子产额-二次离子质谱术
interference signal
干扰信号 -二次离子质谱术
incident particle energy
入射粒子能量 -二次离子质谱术
negative ion yield
负离子产额 -二次离子质谱术
The resulting residual chromatism is known as secondary spectrum.
所得到的剩余色差叫做二次光谱。
Studies of Vanadium in SiC by SIMS
SiC中V含量的二次离子质谱分析研究
Determination of Trace Butadiene-1,2 in the Polymerzation Grade Butadiene-1, 3 by Secondary Gas Chromatography
聚合级丁二烯-1,3中痕量丁二烯-1,2的二次气相色谱测定
Study of Quantitative Analysis of Vanadium in SiC by Secondary Ion Mass Spectroscopy;
二次离子质谱分析碳化硅中钒杂质含量的研究
Quasi-Phase-Matched Second Harmonic Generation in GF(m, n) Optical Superlattices;
广义菲波那契超晶格二次谐波谱的理论研究
Secondary Aerosol Formation in Highly Polluted Urban Area: Field Study by Single Particle Mass Spectrometry in Shanghai
上海市大气二次气溶胶的单颗粒质谱研究
A New Method for Recognition Proteomic Mass Spectrometry Data Using Double-Time Projections
一种二次投影识别蛋白质谱数据的新方法
Determination of trace phosphine in the environments by using gas chromatographyGC
二次富集气相色谱法测定环境中的痕量磷化氢