查询词典 direction-finding

It is concluded that when a small solid angles range adjacent to the main direction in the far field is considered, the parallel beams combining of compact antenna arrays has its priority if the phases can be controlled, and the parallel beams combining of sparse antenna arrays has its priority if the phases can not be controlled.

分析表明：当关注的是远区主方向邻近的小立体角区域时，若能做到控相激励，宜采用紧凑阵的平行波束合成；若不能控相，宜采用稀疏阵的平行波束合成。

The Frechet derivative of the cost function is determined via the solution of an adjoint partial differential equation, and the boundary shape is then modified in a direction of descent. This process is repeated until an optimum solution is approached. The advantage is that the cost function variation is independent of the flow field variation, with the result that the gradient of cost function with respect to arbitrary number of design variables can be determined without the need for additional flow-field evaluations. So each design cycle requires the numerical solution of both the flow and the adjoint equations leading to a computational cost roughly equal to the cost of two flow solutions.

虽然他们的研究成果大多数都可以在公开性文献上看到，但是其中一些具体的细节问题的处理方法却没有透露，比如：伴随方程如何离散求解才能减小最终梯度计算中的误差，使得设计过程有效地进行；伴随方程与流动方程的边界条件是不同的，如何合理地处理伴随方程的边界条件，才能推动设计过程朝着设计目标而发展；在减阻问题中目标函数如何定义，求解梯度的具体数学公式如何推导，如何通过数值方法来实现它们等。

The characteristic approximation is used to handle the convection part along the direc-tion of fluid namely characteristic direction to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion; The mixed finite element spatial approximation is employed to deal with diffusion part and approximate the scalar unknown and the adjoint vector function optimally and simultaneously; In order to preserve the integral conservation of the method, we introduce the modified characteristic method.

该方法对方程的对流部分沿流体流动的方向即特征方向离散以保证格式在流动的锋线前沿逼近的高稳定性，消除数值弥散现象；对方程的扩散部分采用最低次混合有限元方法离散、同时以高精度逼近未知函数及未知函数的梯度；为保证方法的整体守恒性，在格式中引入修正项。

Meanwhile, based on the MYT orthogonal decomposition, a new method identifying the direction of abnormality of multidimensional abnormal observations is brought forward. This method is robust and appropriate to inverse matrix method, adjoint matrix method and Gram-Schmidt method of MTS.

同时，提出了基于MYT正交分解法的多元系统马氏田口异常值异常方向确定方法，该方法具有很强的稳健性，适用于马氏田口的逆矩阵法、伴随矩阵法和施密特正交化法。

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.

针对机载电磁矢量传感器阵列DOA和极化参数估计问题，提出了一种基于复四元数估计方法，该算法利用四元数建立机载电磁矢量传感器阵列信号处理模型，然后利用四元数联合矩阵的特征分解得到阵列数据相关矩阵的特征分解，一方面使得计算过程中数据的贮存量大大减少，另一方面通过推导得到信号子空间和噪声子空间在四元数域上的正交性从而使DOA和极化参数佑计的精度更高，仿真证实了本算法的有效性。

This court goes along with the basic direction of "Governing the country according to law" and the requirement of building a suburban court goes well with international metropolis of Shanghai, place emphases on the design of legal culture of office and court adjudgment region, try to build this public place into an occasion that can represent the legal situation of Shanghai and the publicity of legal system.

该院从依法治国基本方略和建设与上海国际化大都市相匹配的城郊型法院要求出发，将办公和法庭审判区域的法律文化作重点设计，力求使这一公众开放区域建设成为体现上海法治环境、法制宣传的场所

Cooperation direction: cooperate run a school, work admeasure and operation with each other.

与相关保安学校、企业长期合作；合作方向：合作办学、工作分配及业务互动

Construction is also the guarantee system of bankruptcy insolvency legislation in the direction of the admissibility procedure.

破产担保制度的构建也是破产受理程序立法的方向。

Indeed, but said from the pleased however angle that we should stop this kind of weakness the spread, oneself appropriate and the correct consideration treat and weighs (popular spot which certain praises or the benefit true value said that is other people's praise can have big advantage to oneself to be able has big direction nature for own development as well as now rear guard's advance), in order to reduce to other people's high caring about.

诚然，但从悦然的角度上说，我们该制止这种弱点的蔓延，自己恰当而正确的考虑对待及衡量某些赞扬或利益的真正价值（说的通俗点，就是他人的赞扬对自己能有多大的好处能给自己的发展以及今后路的前进有多大的指引性），以便能减轻些对他人的高度在乎。

We're just advancing in a different direction.

我们不过是在不同的方向进攻。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。