Principle of frequency agility radar to resist narrow-band clutter jamming and to reject sea wave clutter is introduced in this paper.
介绍了频率捷变雷达抗窄带杂波干扰与抑制海浪杂波的原理。
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。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
So, it requests radar provided with the ability to restrain clutter wave for differentiating the echo of moving target.
因此要求雷达必须具备很强的抑制杂波的能力，能在较强的杂波背景中分辨出运动目标的回波。
The Doppler spectral broadening due to nonstationary movement of target and radio-frequency clutter will decrease the veracity of target detection by high frequency ground wave (HFGW) radar.
海面低速目标的非均匀运动和射频瞬态干扰引起的多普勒谱展宽影响高频地波雷达检测目标的准确性。
The results show that when the millimeter wave radar has the short-distance detection, signal-to-clutter ratio is more than signal-to-noise ratio. So rainfall is an important impact factor.
结果表明：在毫米波雷达近距离探测时，信杂比大于信噪比，雨杂波是重要的影响因素。
The results show that when the millimeter wave radar has the short-distance detection, signal-to-clutter ratio is more than signal-to-noise ratio. So rainfall is an important impact factor.
结果表明：在毫米波雷达近距离探测时，信杂比大于信噪比，雨杂波是重要的影响因素。
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