chirp相关论文
雷达和通信作为无线电技术的重要应用,其发展速度远超想象。伴随着技术发展,对系统的集成度和功能多样化提出更高的要求,可高效利......
理论研究了当基频光（ω0）和倍频光（2ω0）之间的时间延迟改变时，所产生的三次谐波(THG)的光谱特性。研究结果表明，空气中双色场飞秒激光诱......
对基于半导体光放大器交叉增益调制效应的全光波长转换后的信号啁啾特性进行了分析。通过数值模拟方法研究了归零码和非归零码经过......
本文给出了线性扫频(啁啾)的高斯型光脉冲的功率谱表达式,它等效于有调制的、脉宽压窄的无啁啾光脉冲的功率谱.理论分析表明:啁啾......
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采用两段级联单模光纤对高阶孤子脉冲进行压缩。两段光纤具有不同的反常色散值, 当高阶孤子脉冲在第一段光纤中获得最大程度压缩时......
本文通过计算机叠代法,分析计算了一般所用的λ_m/4单膜系介质腔镜的色散,发现用这种腔镜难以补偿腔内脉冲的正啁啾.设计了一种双......
综合考虑了在2 1维正色散介质中克尔效应衍射、色散对光脉冲传输的影响，得到了脉宽、束宽传输的一般规律，并以高斯光束为例用数值法......
光载波源波分复用无源光网络(WDM-PON)是指用户侧光网络单元(ONU)中采用调制器而无光源，光载波源的生成方式是光载波源WDM-PON的主......
An apartment complex with nearly a century of history is doomed to disappear即将消失的百年民国公寓When Tang Xiangting,th......
According to the perturbation theory, the coupled-mode equations for guided optical waves in the magneto-optical fiber B......
We discuss theoretically how supercontinuum spectra produced from high-order harmonic generation processes in a synthesi......
We study theoretically the spectral intensity evolutions of the femtosecond Gaussian and parabolic pulses with different......
In this work, new plain and composite high-energy solitons of the cubic–quintic Swift–Hohenberg equation were numerica......
To estimate the angle of arrivals (AOA) of wideband chirp sources, a new time-frequency algorithm is proposed. In this m......
In this paper,a focusing approach is presented to widen the use of efficient monostatic imaging algorithms for azimuth-i......
Compressive sensing(CS) techniques offer a framework for the detection and allocation of sparse signal with a reduced nu......
基于线性调频脉冲(Chirp)信号良好的自相关性以及匹配滤波后尖锐的时域特性,将线性调频脉冲扩频技术用于高速的超宽带无线通信,设......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
In several applications, such as collision avoidance, it is necessary to have a system able to rapidly detect the simult......
首先针对一端固定的双站SAR构型,建立了相应的回波信号模型;接着推导出该模型下的Chirp Scaling成像算法;最后,通过多点目标成像的......
A frequency invariant response algorithm is proposed for getting over the signal distortion in high frequency when the b......
基于Chirp扩频技术的超宽带(UWB)通信系统目前有两种调制方式:二进制正交键控(Binary Orthogonal Keying,BOK)调制和直接调制(Dire......
A simple identification method based on a closed-loop experiment is proposed to measure the infinity norm of sensitivity......
在已有发送参考脉冲超宽带系统基础上,针对拓展距离超宽带应用需求,借鉴雷达信号处理中的去斜脉冲压缩方法,提出了一种基于有源频......
Traditionally, beamforming using fractional Fourier transform (FrFT) involves a trial-and-error based FrFT order selec-t......
基于耦合模理论和阶跃折射率单模光纤三层模型包层模理论,可在长周期光纤光栅(LPG)光纤包层外涂制特定的抗体作为生物活性膜层,并......
基于线性调频脉冲(Chirp)信号良好的自相关性以及匹配滤波后尖锐的时域特性,将线性调频脉冲扩频技术用于高速的超宽带无线通信,设......
