方位角的

First, the basic tracking laws of the user satellite s satellite-satellite antenna are deduced and according to several different conditions, the expressions for the azimuth angle and elevation angle of the satellite-satellite antenna are revised.

针对几种情况，并考虑地球的隔断影响和天线的自身限制，对星-星天线的方位角和俯仰角表达式进行了修正和补充。

After studying the theory of combined signal processing with acoustic pressure and particle velocity, a method of direction estimation underwater, which is based on intensity measurement using an acoustic vector sensor, is presented. In the low frequency field with kinds of line-spectra, azimuth angle estimation is achieved based on the probability density statistics and bar graph approach. It can preferably resolve the problem of left/right bearing resolution and estimate the direction of space.

为了对水下目标进行定位，基于声压与振速联合信号处理的理论，研究了复声强法对水下目标信号的定向技术，并使用概率统计和直方图的理论对目标的方位角和俯仰角值进行了估计，在线谱分量存在的低频段对估计角度进行了概率统计，较好地解决了左右舷的分辨问题，实现目标的全空间无模糊定向。

To better fit the lower amplitude P waveform, we employed two different weights for the P wave and surface wave arrivals, respectively. A grid search method was employed to find the strike, dip and slip of the earthquake that best fit the three-component records of P and surface waveforms recorded (the tangential component of the P-wave arrivals was not used). Synthetic waveforms were computed with an F-K method. Two crustal velocity models were used in the synthetic calculation to reflect a rapid east-west transition in crustal structure observed by seismic and geological studies in the study area.

为了更好地利用信号相对较弱的P波信号，对于一个地震记录，本文分别截取出P波和面波两个部分，分别给予不同的权重进行反演，结合格点搜索的方法，得到了与记录P波及面波三分量对应较好的地震的方位角、倾角和滑移角。

Wheat leaves of reasonable population varied with changes of solar position angle and altitudinal angle.

结论］合理群体的小麦叶片会随太阳方位角和高度角的变化而变化。

Previous solutions to these problems, such as topology conversion methods and forward-pointed arcs methods, not only have deficiencies of having high temporal and spatial complicacies, but also have shortcomings for the topological data difficult to be formed and be renewed in good time. This paper comes up with an Arc Topology Algorithm to solve one-way road prohibitions and turn penalties problems, and puts forth Azimuth Algorithm and Turn-angle Algorithm to solve nodal weight problem.

针对以往的解决方案如转换网络法和扩展的前向关联边法计算的时间复杂度和空间复杂度高以及拓扑数据难以建立和难以实时更新的缺陷，论文构造了弧段拓扑法以解决单向行驶限制和转向限制问题，构造了方位角法和转向角法以解决节点权重问题。

It deducts the formulas of azimuth angle and attitude angle and uses fixed-point DSP to realize the arithmetic of the angle.

推导了方位角和姿态角的理论公式，并实现了角度的定点DSP算法。

It is shown by the systematic error analysis that trajectory error is mainly determined by the measurement error in azimuth and elevation angle, rather than the laser ranging error which is normally taken into consideration.

系统误差分析结果表明，影响导弹末区轨迹测量精度的主要因素是测量设备的方位角和俯仰角测量误差，而不是通常认为的激光测距误差。

A new algorithm is presented to estimate the azimuths,elevations and Doppler frequencies of uncorrelated signals incident on a uniform circular array.

本文研究均匀圆形阵列的信号处理问题，提出了一种同时估计空间非相关信号源方位角、俯仰角和多普勒频率的算法。

The cameras are placed on the theodolites which are laid on the sides of flight path, and it can take airplane′s photos at azimuth and pitching angle.

数字摄像机安放在经纬仪上，经纬仪布置在飞机飞行轨迹的两侧，构成了一个能够在俯仰角和方位角下拍摄图像的光测机构。

The recognition of aircraft status is realized by use of the invariability of azimuth angle and pitch angle of target axis during encounter of missile and target.

最后利用弹目交会过程中目标轴线方位角和高低角的不变性实现了飞机飞行姿态的识别。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。