查询词典 azimuth angle

To solve the direction-finding with communication signal and the integration of communication and radiolocation,a new space-time OFDM modulation technique is proposed,and the system can transmit azimuth message.

为解决利用通信信号的测向和通信定位综合设计问题，提出了一种载有方向信息的OFDM时空调制技术。

The stress field,especially the orientation of horizontal principal stress in vertically-fractured gas well,determines the azimuth of refracture creation and refracture propagation.

根据弹性力学理论和岩石破裂准则，裂缝总是沿着垂直于最小水平应力方向起裂，因此，重复压裂井中的应力场分布决定了重压新裂缝的启裂和延伸。

The error model identification of accelerometers on a azimuth strapdown platform system is also concerned in the dissertation. The composite 14 position test plan of the regular hexahedron and octahedron is provided, and identification results are obtained by using improved progressive regression algorithm.

本文实验研究了方位捷联平台系统加速度计误差模型辨识方法，根据最优试验设计理论设计了正六面体和正八面体组合十四位置试验计划，并用改进的逐步回归算法给出了辨识结果。

It also analyses the structure , the testing principle of the radar , the method of measuring distance , relative velocity and azimuth.

文中还研究了该雷达测试系统的测试原理，以及测量车间距离、两车相对速度和前车方位的方法。

In this thesis, we has made research in ScanSAR mechanism and imaging theory, which is the base of studies on imaging radiometric precision and accuracy, including causation and correcting technology of ScanSAR azimuth scalloping distortion.

本文对星载ScanSAR的工作机制和成像原理进行了研究，对ScanSAR成像处理器辐射精度的影响因素进行了理论分析，并研究了影响ScanSAR 方位向成像精度的扇贝效应的成因、对成像辐射精度的影响及其校正技术。

The results show that signal-to-noise ratio and characteristics of the measured waves are good, and that slowness curves of fast and slow waves, anisotropy, and fast and slow shear-wave azimuth match well with each other.

结果表明，该仪器测得的波形信噪比高，波形特征清楚正确，资料处理结果中的快、慢横波慢度与各自的横波波形、各向异性及快、慢横波面方位角等都有良好的对应关系。

Solar energy ; solar azimuth ; formula solution ; application

太阳能；太阳方位角；求解公式；应用

In this paper, an algorithm to achieve both two dimensional high resolution and wide swath is proposed. Every small satellite work in the active state, they transmit and receive different frequency band signal simultaneity. First, the azimuth ambiguity is eliminated in each frequency sub-band, then the signal is rectified to zero Doppler frequency, after that this algorithm does the range spectral synthesis to achieve high range resolution.

该文分析了一种沿航向排列分布式小卫星宽测绘带二维高分辨率成像技术，每颗卫星同时发射接收不同频率的线性调频信号，先分别在每个子带解方位多普勒模糊，并将方位多普勒中心频率调整至零频，然后在距离向进行子带拼接得到大带宽的线性调频信号从而得到高的距离向分辨率。

The main branches of a spherical astronomy, practical astronomy, astronomy and astronomical azimuth geodynamics.

主要的分支学科有球面天文学、实用天文学、方位天文学和天文地球动力学。

Its theory is based on spherical astronomy and error theory, the main research on the ground coordinates of the points and ground connections between two points, the determination of the azimuth principle, measurement method, calculation method of operating procedures and go.

它的理论基础是球面天文学和误差理论，主要研究地面坐标点和地面两点之间连线的方位角的测定原理、测定方法、操作程序和归算方法。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。