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。

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.

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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.

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介绍了一种UHF频段高机动、高可靠的高功率固态雷达发射机的组成情况。

This paper introduces the construction of a high maneuverability, high reliability and high power solid-state radar transmitter at UHF band.

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