A novel direction of arrival and polarization estimation of electromagnetic vector sensors mounted on the airframe is proposed based on biquaternion. The signal processing model for EM-sensor mounted on the airframe is made by biquaternion and then the eigenvalue decomposition of spectral matrix is obtained by means of the EVD of its quaternion adjoint matrix. The memory requirement for data is reduced, and more accurate estimation result is gotten by deducing the stronger orthogonality constraint between the sin- gal and noise subspaces on the field of biquaternion. The performance of the new algorithm is confirmed through numerical examples.

針對(duì)機(jī)載電磁矢量傳感器陣列DOA和極化參數(shù)估計(jì)問題欧美精品一级一区，提出了一種基于復(fù)四元數(shù)估計(jì)方法，該算法利用四元數(shù)建立機(jī)載電磁矢量傳感器陣列信號(hào)處理模型国产一级A片在线观看免费，然后利用四元數(shù)聯(lián)合矩陣的特征分解得到陣列數(shù)據(jù)相關(guān)矩陣的特征分解极品国产盛宴在线观看免费，一方面使得計(jì)算過程中數(shù)據(jù)的貯存量大大減少，另一方面通過推導(dǎo)得到信號(hào)子空間和噪聲子空間在四元數(shù)域上的正交性從而使DOA和極化參數(shù)佑計(jì)的精度更高欧美精品黄色大片一区二区三区，仿真證實(shí)了本算法的有效性色色色五月丁香。

The uniform design method is used to select initial points. The admissible domain, based on initial points obtained, is partitioned into finite sub-domains. A modified Hooke-Jeeves algorithm is proposed to each sub-domain.

以均勻設(shè)計(jì)方法選初始點(diǎn)，并依此把允許區(qū)域分解為有限多個(gè)子域国产一级国产一级视频，在每個(gè)子域上構(gòu)造了改進(jìn)的Hooke-Jeeves優(yōu)化算法。

However, in order to compute the irreducible ascending chain in Wu's method, polynomial factorizations over successive algebraic extension fields are needed.

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Prime ideal decomposition is an important problem in algebraic number theory and is relative closely with the class field theory and so on.

素理想分解問題是代數(shù)數(shù)論中的一個(gè)重要課題日韩在线观，它與類域論的關(guān)系極為密切，因而如何判斷K的素理想在K的有限擴(kuò)張中的分解狀況是一個(gè)十分有意義的問題a片在线视频免费。

The image diagnosis method is presented based on bidimensional Local Wave Method. The grey image of time-frequency spectrum is set as the study target, from which the character correlative to fault is attracted.

提出了基于二維局域波分解的圖像診斷方法国产在线观看无码免费Aa，通過對(duì)時(shí)頻灰度圖像的二維分解提取表征故障信息的圖像細(xì)節(jié)部分，有效地實(shí)現(xiàn)了故障的特征提取禁止18岁黄色网站。

Experiment proved the practicability and efficiency of this algorithm. We study a class of subband coding schemes allowing perfect reconstruction for a bidimensional signal sampled on the hexagonal grid.

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Besides, as to inpainting problem in wavelet domain, we introduce a new iterative model. In this model low frequency and high frequency will carry on processing separately, enormous speed up the image repair convergence rate, and even if as high as 90% wavelet coefficient have been lost, this model will also be able to have the very good repair effect. In the old model, to compute the curvature we have to transform the coefficients to the pixel domain, and then transform back to the coefficient domain for several times and this method can solve this problem and speed up the iterative convergence.

其次針對(duì)小波域中圖像修復(fù)的問題，本文提出了一種新的小波域圖像修復(fù)模型国内精品盗摄系列，該模型根據(jù)小波變換后系數(shù)相關(guān)性的特點(diǎn)亚洲黄色视频大全，將低頻和高頻分別進(jìn)行處理，極大的加快了圖像修復(fù)的收斂速度最新最近毛片视频在线手机免费看不卡看，并且即使丟失高達(dá)90%的小波系數(shù)欧美AAAAAAAA片一级，該模型也會(huì)有很好的修復(fù)效果，有效的解決了傳統(tǒng)的TV- Wavelet模型在計(jì)算圖像的平均曲率WCURV時(shí)免费一级A片高清毛片，需要反復(fù)進(jìn)行小波分解與重構(gòu)的計(jì)算狂野欧美AA片免费播放视频，迭代速度慢的問題。

The nature of the acceleration unit-impulse response function of unbounded medium tending to vary linearly is proved by means of asymptotic analysis. Thus, the acceleration unit-impulse response function can be regarded as the summation of a linear function and a residual part which converges to zero. Based on this decomposition, two FE-SBFE coupling procedures are presented based on system realization and truncation integral technique respectively.

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Based on the localization properties of wavefield decomposition and propagation in the beamlet domain, and according to relevant extrapolation formula, the beamlet domain is implemented, and finally imaging values are computed using image-forming condition.

利用小波束域波場(chǎng)分解和傳播在空間和方向上的雙重局域性，將小波束域波場(chǎng)依據(jù)相應(yīng)的外推公式進(jìn)行延拓超碰97在线免费观看，最終應(yīng)用成像條件求取成像值激情亚洲无码视频。

At first the physical and mathematical models for multiconductor transmission lines are described, and the traditional mode decomposition method in the frequency-domain and the characteristic method in the time-domain are introduced simply.

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