It is high loss of rate in over-the-horizon radar on the condition of low detection probability.
高频地波超视距雷达在舰载条件下探测舰船目标面临着诸多挑战。
The over-the-horizon radar is mainly used for strategic early warning and long range tactical warning information radar systems.
超视距雷达主要用于战略预警及远程战术警戒情报雷达系统。
High frequency skywave over-the-horizon radar can provide a wide coverage beyond the horizon by means of refraction within the ionosphere.
高频天波超视距雷达通过电离层的折射作用，具有同时超视距监测大区域范围的能力。
The high frequency ground wave over-the-horizon radar can be adopted in detecting ocean state such as wind, ocean waves and ocean currents.
高频地波超视距雷达可以实现对海洋环境状态(如风、浪、流等海洋动力学参数)的监测。
The inconsistency of frequency response between channels degrades the performance of adaptive digital beam-forming in over-the-horizon radar.
在天波超视距雷达中，通道之间的频响不一致影响了自适应波束形成的性能。
The refraction effect on positioning of the over-the-horizon radar signal is analyzed. The charts of the refractive error(elevation error and range error) are also given.
主要分析对流层的折射效应对超视距雷达信号定位的影响，并且给出相应的折射误差图（仰角误差和距离误差）；
Identity of propagation modes of over the horizon radar (OTHR) is the problem which must be solved in the war.
超视距雷达传播模式识别是超视距雷达(OTHR)实战中必须解决的一个问题。
The main motive of this thesis is to investigate target classification of HF over-the-horizon (OTH) radar based on multiple frequency feature and poles.
本文主要研究基于多频和极点特征的高频超视距雷达目标识别方法。
This method can be applied for the analysis of scattering problem of a target above the sea surface for HF over the horizon radar.
本文方法可应用于短波超视距雷达海上目标散射特性的分析。
High frequency surface wave radar is an important tool of the over horizon detection of sea and low-altitude targets.
高频地波雷达是对海面、低空目标进行超视距探测的重要手段。
The sky wave over the horizon radar (OTHR) is a new mechanism in which the ionosphere is used as a mirror to reflect the radar high frequency signal to detect the target.
高频天波超视距雷达所独有距离多跳现象，使得位于雷达威力覆盖范围以远的杂波通过地面与电离层的多次反射进入到雷达的接收阵列。
The sky wave over the horizon radar (OTHR) is a new mechanism in which the ionosphere is used as a mirror to reflect the radar high frequency signal to detect the target.
高频天波超视距雷达所独有距离多跳现象，使得位于雷达威力覆盖范围以远的杂波通过地面与电离层的多次反射进入到雷达的接收阵列。
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