subsampling
英
美
网络 子抽样; 下采样; 子采样; 分段抽样; 二次抽样
双语例句
- Application of ICA and Subsampling in Color Image Watermark Based on DWT
ICA和子采样在DWT域彩色图像水印中的应用 - Analysis of transformation methods in image watermarking using subsampling
基于子带抽样图像水印技术中几种变换方法的性能分析 - Based on the remainder theorem and direct dechirp operation, an algorithm for estimation of chirp rate and initial frequency of the subsampling wideband LFM signal unambiguously is presented.
基于中国余数定理解频率模糊和解线调方法，提出一种无模糊欠采样的宽带线性调频信号的调频斜率和初始频率的估计算法。 - In some applications, sampling with Nyquist frequency may be hard to implement due to hardware limitation. Based on subsampling, a method which estimates the modulation rate and initial frequency of the ultra-wideband LFM signal is presented in this paper.
针对Nyquist采样频率过高、硬件实现困难的问题，提出一种基于欠采样的超宽带线性调频信号的调制斜率和初始频率估计方法。 - Then the author mentioned that the incomplete subsampling is one of reliability preprocessing methods, it includes instantaneous failure, data induction and Johnson method, etc.
不完全子样法是可靠性预处理的一种方法，包括瞬间故障率法、数据归定法、约翰逊法等。 - A Method for Estimation Parameters of UWB LFM Signal with Subsampling
欠采样超宽带LFM信号参数估计 - Based on the cross-spectra ESPRIT algorithm and remainder theorem, the modulation rate and initial frequency of the subsampling ultra-wideband LFM signal are estimated unambiguously and precisely even in low SNR.
该方法利用互谱ESPRIT算法和余数定理对欠采样信号进行解模糊，在低信噪比情况下仍能较精确地估计超宽带线性调频信号的调制斜率和初始频率。 - By using the cross subsampling, rhombus filer two dimensional DPCM, motion check, inter frame and intra frame insert, the rate of digital color television signal will be compressed from 216Mb/ s to 34Mb/ s.
文中提出了利用交叉亚取样、对角滤波、二维差分编码、运动检测及帧内和帧间内插等措施，将216Mb/s速率的彩色电视信号压缩到34Mb/s。 - The subsampling process is splitted into two stages.
子采样的过程分为两个阶段。 - The Robust Watermarking Scheme Based on Subsampling
基于子采样方法的鲁棒性水印算法 - Since the subsampling wideband LFM signal and its two difference delay visions conjugation product are all single tones, the chirp rate is estimated unambiguously by FFT and spectrum peak search detection ( PSD) and remainder theorem.
首先，欠采样宽带线性调频信号与其两路不同延迟共轭相乘，根据两路输出信号的单频特性，利用FFT、谱峰检测（PSD）和中国余数定理进行宽带线性调频信号的调制斜率无模糊估计； - Study on the Space Pattern and Subsampling Technique of Corn Leaf Mites
玉米叶螨空间格局及其二阶抽样技术研究 - In the paper, to meet the dynamic performance requirements of digital receiver, a subsampling receiv ˉ er architecture is introduced.
针对数字式接收机对其所采用器件的动态性能要求，给出了一个欠采样接收机的结构图。 - The residential areas, cultural and educational areas, city parks, commercial areas, urban roads, industrial zones, development zones in Hohhot were taken as the research objects, the soil samples were randomly collected by triple subsampling technique in each functional zone.
选择呼和浩特市居民区、科教区、城市公园、商业区、道路、工业区和开发区为研究对象，共采集62个样品。 - In MRI, subsampling is used to reduce data scanning time which does not satisfy the Nyquist sampling frequency and result in image aliasing.
在磁共振成像中，为了减少扫描时间通常使用欠采样方式，但欠采样方式不满足奈奎斯特采样频率，从而引起混叠伪影。 - Experiments show that the proposed algorithm can achieve a better reconstruction performance than the traditional methods. The relationship between the quality of the reconstructed MR images and different type of sampling matrix, and different subsampling rate is discussed.
实验结果表明，所提出的算法取得了较好的重建效果，同时还讨论了不同采样矩阵、以及不同采样率对重建的影响。 - In this paper, key algorithms of electronic reconnaissance signal processing and the subsampling wideband digital receiver of electronic reconnaissance are researched, combining with the hardware characteristic of the wideband digital receiver.
本文结合宽带数字接收机硬件特点，对电子侦察信号处理关键算法以及欠采样宽带数字接收机作了研究。 - Sparse representation in traditional image reconstruction does not take into account the structure in the data space. Especially when the sparse representation dictionary is formed merely using the subsampling data, image cannot be sparse represented effectively.
传统的基于稀疏表示的重建中，稀疏表示的过程并没有考虑数据中的结构特征。特别是仅利用欠采样图像数据训练稀疏表示字典的情况，图像并不能很好的被稀疏表示。 - The traditional subsampling based information hiding algorithm can not resist the permutation attack. In this paper, an improved algorithm is proposed to resist the permutation attack.
以往的基于子采样的信息隐藏算法无法抵抗置乱攻击，本文提出了一个改进算法，实验表明该算法能有效抵抗置乱攻击。