narrowband相关论文
A new unsupervised two-stage method for color image segmentation is proposed. The method contains coarse segmentation an......
Imaging precession targets based on the narrowband radar to distinguish the real warhead from mid-course targets is a ne......
针对低轨双星系统对窄带辐射源无源定位的应用场景,基于双星观测到的辐射源到达频率差,提出了一种多次频差测量联合估计辐射源位置......
Diagnostic performance of narrow-band imaging international colorectal endoscopic and Japanese narro
BACKGROUND In recent years,two new narrow-band imaging(NBI)classifications have been proposed:The NBI international colo......
介绍了接入网的概念和广域网接入技术的发展现状,着重分析了常用接入技术的基本原理、特点及其应用.......
在无线通信的一些特殊场合中,需要窄带选频放大。常用的滤波器仿真软件都不能做窄带有源滤波电路的仿真。本文在软件仿真的基础上,......
脉冲超宽带(impulse radio ultra-wideband,IR-UWB)是一种通过发射极窄脉冲进行信息传输的无线电技术.由于脉冲超宽带技术的工作频......
文章独创性的提出了短波窄带FFH/BFSK的信道估计算法――基于判决反馈的LS(LS,Least Square)算法,并对其进行理论研究与仿真分析。仿......
本文针对靶场末制导雷达采集需求,设计了一种基于Compact PCI总线结构的多通道末制导雷达回波信号采集系统.实现了对窄带末制导雷达......
介绍无线网络的基本概念,阐述其技术特点、网络标准、应用领域及所需设备,并给出一个组建校园网络的方案设想.......
We theoretically propose a narrowband perfect absorber metasurface(PAMS) based on surface phonon polaritons in the terah......
文中分析一种基于最小均方误差(MMSE)联合估计的窄带干扰(NBI)的抑制算法。理论分析表明.该算法可以有效抑制窄带干扰。该结论可扩展到......
超宽带通信的优良特性使其成为继CDMA与蓝牙技术之后倍受人们重视的通信技术,但是其极宽的频谱分布对常规通信系统的干扰也成为人......
研究了分布式检测融合系统的融合算法,及其在水声信号检测中的应用。提出了一种基于软决策融合的水声信号检测融合算法,并结合窄带......
现代信息化战争条件下,随着相关技术的不断发展更新,弹道导弹中段目标的识别难度越来越大。近年来,极化特征在目标识别领域得到了广泛......
为解决超宽带信号与窄带信号之间的干扰问题,将认知无线电技术和OFDM(orthogonalfrequencydivisionmultiplexing)调制技术有效地融合......
Esophageal early basaloid squamous carcinoma with unusual narrowband imaging magnified endoscopy fin
Basaloid squamous carcinoma(BSC)is a rare variant of esophageal cancer.There are very few reports of'early'BSC.H......
本文采用TSMCO.18μmCMOS工艺,设计了两款可工作在2.4GHz频率上的窄带低噪声放大器(LNA)。两款LNA的电路结构分别为Cascode电路结构应用......
针对传统时差估计算法在窄带信号源环境中精度低的缺点,提出了一种基于小波降噪的二次相关时差估计算法。仿真结果表明,该算法在低信......
设计并制备了窄带Mo/Si多层膜反射镜。利用高反射级次和减小Mo层厚度两种方法减小Mo/Si多层膜反射镜光谱宽度。对Mo层厚度分别为2nm......
传统窄带电话终端无法为用户提供丰富的融合通信应用,随着NGN技术的日益成熟,统一通信宽带智能终端能够为用户提供语音、数据、多......
用递推的方法解了上有限长周期δ势阱和δ势垒的原子链的薛定谔方程,得到了确定这此原子锭能级的递推公式,可以用计算机计算确定能级......
AIM: To assess the risk of failing to detect diminutive and small colorectal cancers with the 'resect and discard......
对比宽、窄带雷达系统对目标距离和角度的测量精度,建立目标回波模型,并分析宽、窄带雷达系统测量的理论精度;通过计算机仿真,考察了信......
首先介绍了开发ISDN的必要性及通向目标ISDN的三个重要里程碑,然后分三个方面介绍ISDN概念、国际现状和发展动态,最后提出为发展我......
推导出窄带波束形成后干扰抵消器(简称PIC)的输出信干噪比(SINR(W)的一般表达式。定义了输出信干噪比改善率(SINRIR(W)).通过PIC检测出了运动目标的移动轨迹。通......
Nonparametric method based on the mutual information is an efficient technique for the image segmentation. In this metho......
Therapeutic Comparison between Sun Irradiation vs. Narrowband UVB Phototherapy along with Concomitan
In addition to therapeutic options such as steroid ointment, immunosuppressive drug and ultraviolet phototherapy, recent......
Imaging precession targets based on the narrowband radar to distinguish the real warhead from mid-course targets is a ne......
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文章介绍了Watterson信道模型的特性,并以ITS宽带信道模型为基础,提出了一种改进的窄带短波信道模型,并经过适当的近似与简化,得到了适......
基于无线通信网的灵活性和机动性的特点,其在军事通信领域中应用越来越广,而无线通信网网络管理系统设计中的一个重要问题是解决无线......
声表面波滤波器因其在电子系统中的使用和使用环境的不同,具有不同的指标要求。文章介绍了一种窄带,高矩形度声表面波滤波器的设计过......
Modulated Lapped Biorthogonal Transform for Non-orthogonal Narrowband Interference Excision in Sprea
Traditional lapped transform domain excision techniques obtain good performance at the expense of increased processing d......
BER of OFDM System with Multiple NBI Rejection Cascade Complex Coefficient Adaptive IIR Notch Filter
In this paper, rejection of multiple narrowband interferers in a binary phase shift keying modulated orthogonal frequenc......
This paper presents an experimental verification of ultra-wideband bandpass filter (BPF) for UWB applications and notch ......
A compact narrowband non-degenerate dual-mode microstrip filter with square shape cuts is presented. The structure is de......