Modulation相关论文
从理论上阐释了基于独立双驱动马赫-曾德尔调制器(DDMZM)和同相正交调制器的两种单边带光信号调制原理。通过研究100 Gbit/s速率75......
针对可见光通信系统中的LED非线性失真效应,提出基于对称恢复的非对称限幅光正交频分复用(ACO-OFDM)接收机。利用ACO-OFDM的对称恢......
Stimulated Brillouin scattering evolution and suppression in an integrated stimulated thermal Raylei
The spectral purity of fiber lasers has become a critical issue in both optical sensing and communication fields. As a r......
A corona modulation device structure and mechanism based on perovskite quantum dots random laser pum
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提出一种多级高精度可调谐的瞬时频率测量(IFM)方法，采用单光源无滤波的IFM 系统结构，结合光偏振调制和偏振分束原理，利用偏振调制器......
The wavelength modulation indices are measured based on harmonic amplitude ratio of 4f_(amp)/6f_(amp) (4f_(amp) and 6f_(......
We study modulation properties of two-element phased-array semiconductor lasers that can be described by coupled mode th......
为了完善基于LED阵列的可见光并行通信系统，探索与之相配的信号调制方案，进行了实验并得出了相关结论。结合可见光并行通信系统的特......
采用磁控溅射及快速热氧化法在c-Al2O3基底制备出高质量的氧化钒薄膜。首先，分析结果表明所制备的氧化钒薄膜表面颗粒大小均匀，表面......
以向列相液晶为缺陷层构造了双通道光子晶体滤波器(AB)m(LC)H(LC)(BA)m模型。利用传输矩阵法并结合向列相液晶电光效应，研究了液晶......
提出一个自适应数字预畸变(DPD)技术,用于消除基于正交频分复用(OFDM)的可见光通信系统中的非线性失真。该自适应DPD利用两路反馈......
采用数字化的方法,从实际工程应用出发,开发了一套稳定性好、实用性强的“短波紫外光”通信发射系统。该系统以低压汞灯作为光源,......
提出了一种基于低调制度特征进行像素匹配的在线三维测量方法。仅将一固定的正弦条纹投影到在线匀速运动的待测物体上,物体运动产......
Although plasmonic nanostructure has attracted widespread research interest in recent years, it is still a major challen......
Application of Golay codes to distributed optical fiber sensor for long-distance oil pipeline leakag
A new distributed optical fiber sensor system for long-distance oil pipeline leakage and external damage detection is pr......
设计了一种适用于光滑表面的调制度显微测量系统,系统包括两个远心镜头、一个半透半反镜、一个显微物镜、一个CCD相机和一个DMD数......
A modulation classification method in combination with partition-fractal and support-vector machine (SVM) learning metho......
提出了用反向调制照明法分析光栅成像效应的观点，研究了光栅系统的反向衍射干涉效应，成功地揭示了泰伯(Talbot)效应与劳(Lau)效应的......
采用含有振转能级在内的多能级理论模型,对CO2激光器动力学参量进行调制,取得实验与理论一致的满意结果.利用理论与实验曲线拟合的......
提出了一种对大尺寸物体进行三维重构的方法。该方法运用相位测量轮廓术(PMP)测得子区域的三维面形,采用区域调制度和最大化的思想......
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提出了一种新型的用于大气激光通信的6偏振键控调制方式，理论分析和仿真结果表明,光信号的偏振态和偏振度在不同大气信道模型中经过......
Curve evolution during bracing in children with scoliosis secondary to early-onset neurofibromatosis
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Efficiently tuning the output intensity of an optical device is of vital importance for the establishment of optical int......
A new skill of modulating driving signals of a synthetic jet with low frequency is intro-duced to enhance the control au......
A corona modulation device structure and mechanism based on perovskite quantum dots random laser pum
...
Abstract We propose a nonbinary byte?interleaved coded?modulation scheme with inner and outer turbo?like iterative decod......
根据第一代天气雷达发射机在全国各地布网的百余套长期运行过程中暴露出来的技术和维修方面的问题,结合近年来先进电路设计思想和......
针对互操作信号在性能与处理复杂度上平衡点不唯一的特点,提出了一种非匹配接收模式下的信号性能评估方法,在此基础上为北斗二期B1......
采用0.18μm SiGe BiCMOS工艺,设计了一种符合多种协议要求的UHF RFID阅读器发射机.该电路包含电平移位电路(DCS)、I/Q正交上混频......
将解结耦思想与空间矢量调制策略相结合,针对矩阵变换器双向开关的物理特性,提出一种基于电压正负切换指令信号的矩阵变换器的解结......
提出了一种新型强度调制型光纤传感器的理论模型。该模型使用单模光纤,讨论了光在准直透镜中的传播规律,利用光学透镜的准直作用,......
期刊
基于金属纳米结构增强光与物质的相互作用,调控光学响应是光学前沿研究。金属纳米结构能显著增强电磁场和热点空间位置调控,是表面......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Isatin Dual Functional Inhibitors:Modulating the Aggregation State and Enzyme Activity of SARS-3CL P
The 1-(2-naphthlmethyl) isatin-5-formamide compounds can inhibit SARS-3CL proteinase by binding to its substrate pocket,......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
促肾上腺皮质激素释放激素(corticotropin-releasing hormone,CRH)作为哺乳动物应激反应的重要激素,在外周和中枢神经系统内对痛觉......
BACKGROUND:?Survival of the partial graft after living donor liver transplantation owes much to its tremendous regenerat......
A numerical model and transmission characteristic analysis of DPSK (differential phase shift keying) pressure signals in......
针对车内可见光通信系统高带宽、高功率和低误码率的要求,提出了一种新型的双宽差分脉冲位置调制(Dual Duration Differential Pul......
Deep space communications has played an important role in deep space exploration.Compared with common satellite and terr......
Performances of BPSK, balanced-quaternary modulation, dual-quaternary modulation and complex-quaternary modulation in di......
This article aims to survey is metaphor of modality, which is one part of Hallidays interpersonal grammatical metaphor. ......
In-line acoustic-optic (AO) modulation experiments were demonstrated based on the acoustic-optic effect in optical fiber......
X光针孔成像是惯性约束聚变(ICF)研究中重要的诊断方法,对其点扩散函数的计算可用于图像重建和系统空间分辨的判断.对菲涅耳衍射公......
建立了不同类型熔石英元件损伤修复坑形貌的三维模型,利用标量衍射理论并结合快速傅里叶变换算法研究了在351nm激光辐照下修复坑形......
对单轴旋转光纤捷联惯导系统的坐标不对准误差进行了分析.首先研究了基于同等精度惯性器件条件下,利用旋转调制技术提高捷联惯导系......
Isatin Dual Functional Inhibitors:Modulating the Aggregation State and Enzyme Activity of SARS-3CL P
The 1-(2-naphthlmethyl) isatin-5-formamide compounds can inhibit SARS-3CL proteinase by binding to its substrate pocket,......
The 45° scattering of a femtosecond (60 fs) intense laser pulse with a 20 nm FWHM (the full width at half maximum) spec......
