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- ground wave operating distance 地波作用距离
- The simulation of bistatic/multistatic HF ground wave radar echo is analyzed. 摘要分析了双／多基地高频地波雷达回波信号的仿真过程。
- A three dimension polarization filtering algorithm is put forward to suppress th e skywave interference in HF ground wave radar. 以高频地波雷达为背景，提出了三维极化滤波方法，此方法能够滤除二维极化滤波不能抑制的干扰，扩大极化滤波的干扰抑制范围。
- An ocean echo signal simulation system for verification and calibration of FMICW high frequency ground wave radar is presented in this paper. 该文给出一种调频中断连续波(FMICW)高频地波海况监测雷达的仿真模拟检验系统。
- SDA is especially meaningful because it is the first event to awards honors to dramas from all three ground wave stations. 除了韩国三大电视台的综合选送作品外，我们也非常注重颁奖典礼的公正性。
- The paper introduces the method of the HF ground wave radar to pick-up the usable information, gives the detailed scheme to obtain the simulant echo. 文章首先分析了雷达回波信号中有用信息提取方式，给出了模拟回波信号的实现方案；
- In this paper, signal preprocessing for bearing determination of ocean surface radial current mapping by HF ground wave radar based on MUSIC is investigated. 阐述从高频地波雷达海洋回波反演海洋表面流中,使用MUSIC算法提取径向流方位必须的信号预处理。
- In other words, troops are fighting across low ridges, operating distances are apt to be foreshortened. 换句话说，当部队突越较低的山岭时，交战距离通常缩短。
- Sophisticated techniques have been developed for this process by using electromagnetic carrier waves operating at radio frequencies as well as microwave and millimetre wave frequencies. 在运用电磁载波的领域，高新技术得到进一步的发展，比如射频、微波以及毫米波的频率都被用来作为载频使用。
- It is one of the key techniques how to correct the additional second-phase factors (ASF) which indicate the affection of land on the speed of ground wave for developing the accuracies of timing and navigation of Loran-C signal in long-wave. 如何修正用以表征陆地对罗兰C信号电波(地波)传播速度影响的附加二次相位因子(ASF),是提高长波无线电导航定位和高精度授时的关键技术之一。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- Ground wave to skywave correction 地波对天波修正值
- Design of HF Ground Wave Radar Receiver 高频地波雷达接收机研制
- Research on operation distance of TV homer 电视导引头作用距离研究
- correction factor of ground wave phase 地波相位修正因子
- The ground was covered with ferns. 地面上长满了羊齿植物。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
- high frequency ground wave radar 高频地波雷达
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
