background signal

Research and Design of Communication Dynamic Background Signal Generation System

通信动态背景信号生成系统的研究与设计

Weak Signal Detection and Extraction from Chaos Background Signal

混沌背景中的弱信号检测和提取

The research on the Background Signal Simulator is based on the idea of the Soft Wireless .

背景信号模拟器的研究参考了软件无线电的思想。

Diffusion - weighted imaging with background signal suppression in brachial plexus

背景信号抑制弥散加权成像在臂丛神经的应用

We realized that the background signal of O3 is intrinsic and stable .

通过实验研究了解到了O3本底的固有存在和O3本底是具有稳定性的结论。

On the Chaotic and Fractal Behavior of Background Signal during Submarine Detection with an Airborne Lidar

激光雷达探潜背景信号的混沌和分形行为研究

Evaluation of Two Different Sample Labeling Methods on Background Signal Intensities for 60 mer Oligonucleotide Microarrays

两种标记方法对60mer寡核苷酸芯片背景信号影响的初步分析

Depth Profile from the P / B Ratio and the Dependence of the Background Signal on Binding Energy of X-ray Photoelectron

从光电子谱的峰背比及背景信号变化获得成分深度分布信息

The background signal of ozone is basically eliminated by application of modified multi-group ozone generators and serial gas line .

使用改进的多组臭氧发光器和串行气路基本上消除了臭氧本底信号；

According to the known fault type , this algorithm can be applied to specify fault feature extraction from strong background signal or concurrent faults .

该方法在已知故障类型的前提下可用于强背景信号下的故障特征提取和并发故障情况下的指定特征提取。

By adding apyrase to the reaction solution , the background signal of the three-enzyme system were greatly reduced .

通过向三酶系统的反应液中力加入apyrase（？）勺方法使背景信号大大降低。

After that , using the SR algorism we will detect the reverberation background signal and the result show that the detector is available .

之后，利用随机共振的数值计算方法对以混响为背景干扰的信号进行检测，其结果显示随机共振系统检测器检测出了信号正确的位置。

In this strategy , peptide probe was conjugated to the surface of graphene oxide by covalently crosslinking method to reduce the background signal .

这种生物传感技术利用共价交联的方法，将多肽信号探针固定到氧化石墨烯的表面，达到降低背景荧光的目的。

The background signal of HF wave band achieves the expectant targets in the debugging of the signal electromagnetic environment simulator of the wireless communication system .

在通信信号电磁环境模拟器的联调中，HF背景信号达到了各项预期指标。

This paper analyzes background signal and according to characteristic of back-ground signal , provides a scheme of choosing every parameter value in algorithm and a new updating algorithm of background model .

本文对背景信号进行了分析，根据背景信号的特点，给出了背景更新算法中各参数值的选取方案，并提出了一种新的背景模型更新算法。

The method for detecting telomerase activity has the advantages of high sensitivity , simple operation and the background signal is low , not prone to false negative results etc.3 .

该方法对端粒酶活性的检测具有灵敏度高、操作简单和背景信号低，不易出现假阴性结果等优点。

It is concluded that the RD-PCR is a potential and useful sample labeling method with lower background signal intensities for studying high-density long oligonucleotide microarray .

RD标记方法是一种有用的低背景信号的高密度长链寡核苷酸芯片样本标记方法。

This paper introduces some practicable ways to realize the design of Background Signal Simulator console software , database exploitation and the data processing for the GPS receiver ( GN-79 ) .

本文对背景信号模拟器操控界面的设计实现及相应的数据库开发、GPS接收机的数据处理进行了详细地介绍。

Objective To explore the application of STIR-EPI diffusion-weighted imaging with background signal suppression in brachial plexus and to compare its performance with that of conventional STIR / long TE sequence .

目的探讨弥散加权成像结合STIR-EPI背景抑制技术在臂丛神经成像的技术参数及其可行性。

Owing to the eliminating of the background signal compared with traditional signal-on electrochemical sensors by the introduction of the Y junction structure , the present platform could significantly low the detection limits and enhance the selectivity .

与传统的signal-on传感器相比，本传感器由于Y型结构DNA的引入，提高了选择性，消除了背景电流，显著降低了检测限。

The factor effect on CIE coordinates error is analyzed , system error caused by standard source transfer is argued and the background signal subtraction method is brought forward . The repeatability error caused by random noise is also analyzed .

对影响色坐标的各项因素进行了误差分析，分析了标准传递带来的系统误差和基线扣除方法，分析了随机噪声带来的重复性误差。

Because of stronger background signal and noise signal in measured signal of rub impact fault between rotor and stator in rotor system , it is difficult to obtain precise diagnosis result when wavelet transform is used to diagnose this fault .

由于在转子系统动静件碰摩故障测试信号中背景信号、噪声信号较强，使得在利用小波变换进行故障诊断时，难以得到准确的结果。

The following contents are included in this study : the mode of operation for scanning search and track , analysis for the characteristics of target and background signal , formation of scanning wave-shape , target recogni-tion and relevant signal processing .

内容包括扫描搜索与跟踪的工作模式，目标、背景信号特征的分析，扫描波形的形成，目标识别和有关信号处理等的研究。

This method uses the radial basis function neural networks ( RBFNN ) to build one-step predictive model for chaotic background signal contaminated by observed noise , and combines the frequency way to process predictive error to detect the weak sinusoidal signal .

该方法利用RBF神经网络对被噪声污染的混沌背景建立最优一步预测模型，结合频域处理的方法从预测误差中提取微弱正弦信号。

After the addition of organic matrix modifiers , the atomization signal and background signal were separated , atomization temperatures decreased enormously , the ratios of atomization signal to background signal increased and the RSDs and recoveries of practical samples improved obviously .

结果表明：采用有机基体改进剂后，原子化信号和背景信号分离，原子化温度降低了100～450℃，信背比提高了5.1～45.8倍。

16 cases with osteosarcoma were performed coronal or sagittal msh-EPI-DWI with b value 600s / mm2 . The background signal was suppressed with SPIR . The ADC values of neoplastic solid parts , necrotic parts and neoplastic bone parts were measured respectively . Statistic analysis was performed . 3 .

对16名骨肉瘤患者行冠状位或矢状位msh-EPI-DWI扫描，b值取600s/mm2，应用SPIR抑制背景信号，分别测量其肿瘤实质区、坏死区及肿瘤骨的ADC值，并作统计学分析。

Principle and application of Diffusion Weighted Whole Body Imaging with Background Body Signal Suppression

背景信号抑制全身扩散加权成像技术的原理及应用

Optimal Parameters of MR Diffusion Weighted Imaging with Background Body Signal Suppression on Pulmonary Diseases

肺部疾病背景抑制磁共振扩散成像的参数优化

The Generating of Microwave Wideband Complex Radar Signal and the Simulating of Background Radar Signal

微波宽频带复杂雷达信号及背景雷达信号仿真

If the phase difference doesn ′ t exit , the background harmonic signal cannot be eliminated .

如果不存在这个相位差，则无法消除谐波信号背景干扰。