Design and analysis of a CPW-fed broadband microstrip slot antenna Wideband signal interferometry direction-finding based on sub-bands decomposition 共面波导宽频带微带缝隙天线的设计与分析基于子频带分解的宽带信号干涉法测向算法
Fusing Sub-bands on Multi-resolution for Face Recognition 基于多分辨率下节点图像融合的人脸识别方法
Voice Activity Detection Method Based on Selected Sub-bands Vector Distance 基于临界带特征矢量距离的端点检测算法
Wideband signal interferometry direction-finding based on sub-bands decomposition 基于子频带分解的宽带信号干涉法测向算法
Analysis and elimination for leakage error in sub-bands of harmonic power measurement based on a trous algorithm 多孔算法谐波功率测量带内误差分析与消除
The first band is composed of several distinctly different SUB-BANDS. 第一环带由数个明显不同的副环带组成。
The desired frequency is tuning is accomplished by discrete tuning curve among a group of frequency sub-bands through capacitor array. 目标频率由一组分立的亚波段组成,通过电容阵列来控制。
The part of a harness strap that passes through a buckle. The first band is composed of several distinctly different SUB-BANDS. 扣环的皮带穿过皮带扣环的皮带的一部分第一环带由数个明显不同的副环带组成。
After making discrete stationary wavelet transform to the enhanced image, details enhancement is done by certain nonlinear operator in the high frequency sub-bands of each decomposition level respectively. 再对图像进行离散平稳小波变换,利用所提出的非线性增强方法分别对各个分解层的高频子带进行细节增强。
Wavelet has good performance in the image compression for its convergence of energy and similarity of sub-bands after wavelet transformation. 图像经过小波变换后,其能量聚集性、子带之间的相似性以及多分辨分析的特点使得小波图像压缩获得了很多的优势。
An optimization algorithm of the overlap width between adjacent sub-bands is introduced in this paper. 提出了相邻子带重叠宽度的一种最优化算法。
This paper proves the correlations between the position of zero-trees in different sub-bands of same level theoretically and experimentally. 该文从理论和实验上证明了同级别不同方向子带的零树位置具有较大相关性,据此提出了嵌入的零森林编码方法MRZF。
Accordingly, relationship between the distortion distribution in wavelet sub-bands and in the reconstructed data is investigated, and new rate control scheme capable of suppressing temporal fluctuation is proposed. 本文研究了重建信号与小波频带问失真分布的关系,提出了一种具有稳定的时域解码质量的率控制方法。
Audio signal was segmented into frames and the masking thresholds of all sub-bands were estimated by psychoacoustic analysis. 算法将音频信号分帧进行心理声学模型分析,估计频域中各子带的最小掩蔽阈值;
Fully considering non-stationarity in sub-bands, the step of classification in sub-bands is implemented based on which adaptive predictors are designed to improve the efficiency of spectral decorrelation. 在充分考虑子带图像非平稳特性的基础上,首先实现了子带分类步骤,通过分类设计自适应预测器,提高了谱间去相关效率。
It provides optimal dynamic bit allocation for sub-bands of DWT and realizes adaptive quantization for wavelet coefficients. At last, it provides exact rate control for the coder. 该方法基于率失真曲线的精确理论模型,对小波分解后的不同子带提供最优的动态比特分配从而实现了小波系数的自适应量化编码,最后还实现了码率控制。
In order to detect more robustly and precisely the endpoints of speech under noisy environments, an algorithm was proposed in this paper by combining the multiple sub-bands energy as feature and optimal edge detection as decision criteria. 为了提高噪声环境下语音端点检测的鲁棒性,提出了一种结合多子带能量特征和最优化边缘检测判决准则的算法。
Mixed noise-reducing model will be introduced for correcting scanning thresholds of various sub-bands in accordance with the image with Gaussian white noise, thus effectively improving of coding image quality and coding efficiency. 针对含有高斯白噪声的图像,引入混合降噪模型对各子带的扫描阈值进行修正,有效地提高了编码图像质量和编码效率。
The results show that energy distribution for different frequency bands has close relation to blast conditions, and blast vibration signal has wide dominant frequency band that can be divided into many sub-bands. 研究结果表明:爆破振动信号的频带能量分布与爆破条件密切相关,其主振频带较宽并可划分为多个子振频带;
Discrete wavelet transform has the character of focusing on the time-frequency. The different resolution and multiple directional wavelet sub-bands can be got by the wavelet transform of the processed image under the PLIP algorithm, which provide the possibility of image fusion with different sub-bands. 离散小波变换具有时&频聚焦性,对PLIP算法处理后的图像进行小波变换可得到不同分辨率和多方向性的小波子带,为不同子带图像融合提供可能。
Secondly, a novel sub-bands segmentation method and a U/ V decision threshold are designed. 提出了一种子带划分方法和清/浊音判决阈值。
A wavelet sub-bands fusion scheme for single sample palmprint recognition is proposed. 提出一种小波子带融合的单样本掌纹识别方法。
At the third level, the matching scores of palmprint wavelet sub-bands features are fused for recognition. 第三层,掌纹小波子带匹配分数融合。
Therefore, this article puts forward the concept of smoothness, and the direction decomposition of wavelet sub-bands depend on smooth. 因此,本文提出了平滑度的概念,并依据平滑度对小波子带进行方向分解。
It also facilitates the separation of image into spectral sub-bands of differing importance. 这也有利于图像分割成重要性不同的子带光谱。
Orthogonal frequency-division multiplexing ( OFDM) splits a wide frequency band into a bank of narrow sub-bands. 正交频分复用技术(OFDM)将一个宽的频带划分为若干比较窄的子带。
On the basis of shift invariant discrete wavelet transform, a new rule of the adaptive weighting coefficients based on region energy difference is proposed in the high-frequency sub-bands. 在基于平移不变离散小波变换的基础上,针对高频区域,提出了一种基于区域能量差的自适应加权系数的融合策略。
Under the condition of noise, it is the foundation of accurate segmentation of the speech syllable and the premise of testing and marking gene. This paper provides a new Voice activity detected method which is based on the selected sub-bands vector distance. 本文研究了语音端点检测的方法,这是在有噪声情况下,对语音音节进行准确切分的基础,也是对基音进行检测及标记的前提。