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。
So it is easy to get different frequency surface effect depth.
可以方便地求出不同频率的趋肤深度。
Thus, complementary codes are fit for high-frequency surface wave radar.
因此，在高频地波雷达中适合采用互补码信号。
Generally used in quenched and tempered state, can also carry on the carbonitriding and high-frequency surface hardening.
一般在调质状态下使用，还可以进行碳氮共渗和高频表面淬火处理。
To suppress ionospheric clutter in the echo signal of high frequency surface wave radar (HFSWR), a method to suppress clutter based on time-frequency analysis and eigenvalue decomposition is proposed.
针对高频地波雷达回波信号中的电离层杂波，提出了利用时频分析与特征值分解抑制杂波的方法。
Increase of detection range and fast precision tracking are main difficulties in weak aerial target detection for High Frequency Surface Wave Radar (HFSWR).
增大探测距离、快速精确跟踪是高频地波雷达探测飞行小目标所面临的主要困难。
Owing to the decametric wavelength, the angular resolution of High Frequency Surface Wave OTH Radar (HF SWOTHR) is usually coarse especially when dimensions of antenna array are restricted.
由于工作在高频段，高频地波超视距雷达的角分辨力较差，尤其是当阵长受限时。
Owing to the decametric wavelength, the angular resolution of High Frequency Surface Wave OTH Radar (HF SWOTHR) is usually coarse especially when dimensions of antenna array are restricted.
由于工作在高频段，高频地波超视距雷达的角分辨力较差，尤其是当阵长受限时。
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