搜索结果: 1-9 共查到“信息与通信工程 spectrum”相关记录9条 . 查询时间(0.136 秒)
近年来，小型无人机行业飞速发展，且已广泛应用到工业、运输、摄影等多个领域。然而，无人机的飞速发展也为公众带来了各种安全隐患，如偷拍，走私，干扰机场等。这使得检测和定位这些迷你飞行器将变得尤为重要。而传统一些方法如雷达，摄像头和麦克风阵列等，成本高昂，难以应用到较大的区域中。为应对在城市环境中检测小型无人机的难题，浙江大学信息学部史治国、陈积明等教授带领的网络传感与控制研究组的反无人机团队提出了一种...
Two-component Structure in the Entanglement Spectrum of Highly Excited States
Two-component Structure Entanglement Spectrum Highly Excited States
2016/1/22
We study the entanglement spectrum of highly excited eigenstates of two known models that exhibit a many-body localization transition, namely the one-dimensional random-field Heisenberg model and the ...
THE EXCHANGE OF SOCIAL SUPPORT VIA SOCIAL NETWORKS OF MATERNAL CAREGIVERS FOR CHILDREN WITH AUTISM SPECTRUM DISORDERS
special needs children with special needs autism
2015/5/26
The role of social support in the lives of the 16.8 million caregivers for children with special needs in the U.S. is not adequately understood. Many studies have explored seeking health information o...
Speeding up Tandem Mass Spectrometry Based Database Searching by Peptide and Spectrum Indexing
Mass Spectrometry Database Searching Peptide Spectrum Indexing
2010/6/30
Database searching is the technique of choice for shotgun proteomics, and to date much research effort has been spent on improving its effectiveness. However, database searching faces a serious challe...
Efficiently Synchronized Spread-Spectrum Audio Watermarking with Improved Psychoacoustic Model
Efficiently Synchronized Spread-Spectrum Audio Watermarking Psychoacoustic Model
2009/9/4
This paper presents an audio watermarking scheme which is based on an efficiently synchronized spread-spectrum technique and a new psychoacoustic model computed using the discrete wavelet packet trans...
一种基于Spectrum原子的雷达辐射源信号识别方法
信号识别 雷达辐射源 Spectrum原子
2009/4/3
为了提高雷达辐射源信号的正确识别率以满足现代电子对抗的需求，该文提出了一种新的雷达辐射源信号识别方法。在过完备多尺度Spectrum原子库基础上，采用匹配追踪(MP)方法对信号进行原子分解，并通过FFT降低MP搜索过程的时间复杂性，在此基础上，对本征Spectrum原子参数进行有效降维，提取具有分类意义的原子特征向量，同步实现信号的自动分类和参数估计。实验结果表明，该方法在低信噪比环境下不仅可以获...
The Predictive Differential Amplitude Spectrum for Robust Speaker Recognition in Stationary Noises
Predictive Differential Amplitude Spectrum Robust Speaker Recognition Stationary Noises
2005/9/4
The performance of any speaker identification system degrades quite seriously when the acoustic conditions for testing mismatch those for training. In this paper, we propose a method to restore clean ...
USING PREDICTIVE DIFFERENTIAL POWER SPECTRUM AND SUBBAND MEL-SPECTRUM CENTROID FOR ROBUST SPEAKER RECOGNITION IN STATIONARY NOISES
Robust speaker recognition difference function subband
2005/8/18
In state-of-the-art speaker recognition systems, mel-sc aled freque nc y cepstr al coeff i ci ents (MFCCs) are perhaps the m ost w i dely used front-ends. One of the ma jor is sues with the M ...
Using subband Mel-spectrum centroid and Gassian mixture correlation for robust speaker identification
subband Mel-spectrum centroid Gassian mixture correlation robust speaker identification
2005/4/15
Using subband Mel-spectrum centroid and Gassian mixture correlation for robust speaker identification.