查询词典 angle brick

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的顺轨sar系统模型，通过将gps信号等效为chirp信号，研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下，cs算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性cs算法，实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像，最后通过matlab仿真进行了验证。

At the peak point of backward swing, the vertical height from the center of the ball to the ground was 1.34 ±0.01 meters, the angle of the shoulder was 82 ± 2.5 degrees and the angle of the elbow was 161.35 degrees. During release, the vertical height was 0.13 ±0.01 meters, the angle of the shoulder was 48.00 ± 3.64 degrees and the angle of the elbow was 160.71 degrees.

所得具体结果如下：在后摆最高点时，球体中心点距地面之垂直高度平均为1.34 ±0.01公尺，肩关节角度为82 ± 2.5度，肘关节角度为161.35度；而在出手瞬间球体中心点距地面之垂直高度平均为0.13 ±0.01公尺，肩关节角度为48.00 ± 3.64度，肘关节角度为160.71度。

The theoretical and experimental investigations of discus flight indicate the following useful conclusions:the optimum combination of throw angle and discus inclination angle is 35°/26°at zero wind,while 45°is not the best release angle due to the aerodynamic force;different combinations of throw angle and inclination angl...

由于气动力的作用，45°并非铁饼的最佳投掷角度，实验和理论研究表明：无风时35°/26°的投掷角/倾角组合最佳；顺风和逆风投掷必须采用不同的投掷角/倾角组合才能获得当地条件下的最好成绩；铁饼出手时25r/s的自转速度已经可以满足稳定性的要求。

According to the functional requirements of adaptive front-lighting system, the relationships between the yaw angle and pitch angle of light axis in AFS and vehicle parameters, including speed, steering wheel angle and pitch angle of vehicle body are derived, thus a kinematics model for AFS is set up.

根据自适应前照灯系统的功能要求，推导了车辆参数（车速、转向盘转角和车身仰俯角）与车灯光轴沿水平和垂直两个方向的偏转角度之间的关系，建立了自适应前照灯系统的运动学模型。

And of air brick come out, replaced red brick use, controlled the wasteful phenomenon of land effectively.

而空心砖的问世，代替了红砖的使用，有效的控制了土地的浪费现象。

Companies have more than a dozen series, the top varieties of products, leading the world trend and has introduced color glazed wall be brick, brick wall box, antique×, imitation granite natural stone tiles, floor tiles realistic Archaize GLAZE , glass stone, such as species of the major series of varieties, the company can be based on customer specific requirements tailored.

公司已有十几个系列、上面个品种的产品，且不断推出领先世界潮流的彩色釉面外墙条砖、外墙方块砖、仿古彩釉砖、仿天然石花岗岩砖、逼真仿古彩釉地砖、玻化通体石等各大系列品种，公司可以根据客户的具体要求量身订制。

All of the banks are built of brick and for this structure he employed various shades of brick, ranging in color from blue-black to golden brown, giving it an overall reddish brown appearance.

所有的银行都建砖混结构的，他此雇用各种颜色的砖，各种颜色由蓝黑色，以金黄色，使棕红色的整体外观。

In addition, bad red brick, thin brick on to become the focus of a number of experts.

此外，糟糕的红砖，薄砖就成为了一些专家的焦点。

Fuzhuan Brick Tea is one kind of more important brick teas, it is well accepted by northwest minorities of China.

茯砖茶是一种非常重要的砖茶，深受西北少数民族地区居民的欢迎。

In 1991 a mechanism for national brick-tea reserves was established to guarantee the supply of brick tea.

国家通过多种途径培养少数民族卫生人才，不断壮大少数民族卫生专业队伍。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。