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- HF radar system 电离层垂直探测
- In the highly crowded HF band, available continuous bandwidth is very narrow, this threaten the viability of HF radar based on the continuous spectra signal system seriously. 在拥挤的高频频段,可用的连续带宽比较窄,基于连续谱信号体制的高频雷达的生存能力受到严重威胁。
- Ask them to check out carefully the plane's radio and radar system. 让他们将这飞机的无线电和雷达装置检查一下。
- Wideband phased array radar is an important radar system. 摘要宽带相控阵雷达是当前雷达技术的发展方向之一；
- In mmW radar system, SNR affect heavily on radar range. 在毫米波雷达系统中,信噪比对作用距离的影响很大。
- Simulation results show that the new scheme may greatly improve the performa nce of RFI suppression in HF radar. 计算机仿真结果表明新方案较大地改善了高频雷达抑制射频干扰的性能。
- A new algorithm stream function method (SFM), engendering vector currents from radial currents mapped by two HF Radar sites detection is provided. 摘要提出了一种基于海洋流函数模型的双站高频地波雷达径向流生成矢量流算法。
- In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the process of HF radar signal processing. 该文通过对高频雷达信号处理过程的分析，阐明了电离层扰动对回波信号污染的机理。
- This measure could be used for the design and evaluation of radar system ECCM. 本测度可用于雷达系统抗干扰性能的设计与评价。
- The ionosphere contamination imposing on the High-frequency (HF) radar echoes has to be suppressed since it severely degrades the detection performance of HF radar. 摘要高频雷达回波信号受到电离层污染从而影响了雷达的探测性能，因此需要进行去污染处理。
- Chapter 3 obtains the retrieval of parameters of wind above sea surface and ocean wave spectra from simulated narrow beam HF radar backscatter, gives the simulate results. 第三章通过数值模拟的窄波束高频(HF)雷达的海面回波多普勒谱，反演了海面风场、浪高谱等海态参数，并详细介绍了反演的方法、步骤，给出了模拟结果。
- Fan J M,Jiao P N,Xiao J M.The sea clutter effect on the low doppler targets detection by HF radar[J].Chinese Journal of Radio Science,1997,12(2):205-210. [2]凡俊梅;焦培南;肖景明.;海洋杂波对高频雷达检测海面上低速目标的影响[J]
- An electronics man was assigned to check out carefully the plane's radio and radar system. 一个电子技术人员被派去仔细检查飞机的无线电和雷达装置。
- The Observatory's weather radar system at Tate's Cairn detects rain within about 500 km of Hong Kong and gives estimates of rain intensity and movement. 天文台设于大老山的天气雷达，能监察香港约500公里范围内的降雨区，和估计雨势及雨区的移动。
- How to improve the performance of automatic distance tracker is an important subject for modern tracking radar system. 摘要自动距离跟踪器性能的改善是现代跟踪雷达系统研究的重要内容。
- According to the high spatial correlativity of the ionosphere contamination, then the rank one phase error estimation (ROPE) auto-focus method in imaging radar is suitably modified and applied to the ionosphere decontamination of HF radar echoes. 根据电离层污染具有高度空间相关性的特点，将成像雷达中的秩一相位误差估计聚焦方法适当修正后应用于高频雷达回波信号去电离层扰动污染。
- Command and train SAF personnel in ADA missiles and radar systems. 领导防空炮兵导弹和雷达系统训练。
- Meanwhile, the operation effieiency of early warning radar system greatly depends on its wartime survivability. 而战时预警探测雷达装备的生存能力又是装备发挥作战效能的重要前提。
- In the radar system frequently studies thing!!!! Also is the beginner most basic thing, well use! 雷达系统中经常学习的东西!也是初学者最基本的东西,好好的利用啊!
- In order to obtain enough bandwidth,HF radars use an irregularly frequency modulated waveform. 为了获得足够的带宽，雷达采用一种非规则频率调制的波形。
