摘要
利用高频地波超视距雷达中高频通信干扰强度大、具有一定的方向性、属于瞬态干扰和其对地波雷达所有探测距离单元均有影响的特点 ,提出了自适应抑制短波通信干扰的方法。该方法利用无目标 (海浪 )单元的样本值估计阵列的协方差矩阵 ,进而利用自适应波束形成的方法对待测距离单元中的短波通信干扰进行滤除。对实测数据的处理结果表明 。
The high-frequency (HF)-communication interference in the HF ground wave radar (GWR) has the characteristics of high intensity, directivity, transient and homogeneity in its effects on all the rangecells of the HF-GWR, an adaptive HF-communication interference mitigation scheme based on those characteristics is proposed in this paper. The scheme uses the samples from the rangecells without echoes of the sea-surface to estimate the covariance matrix, then HF-communication interference is suppressed through the adaptive beamforming technique. By employing the measured data, the results show that the proposed sehme is effective in HF-communication interference mitigation.
出处
《电波科学学报》
EI
CSCD
2003年第3期270-274,285,共6页
Chinese Journal of Radio Science
基金
国防科技预研跨行业基金 (No :5 140 70 2 0 80 1DZ0 119)
"十五"预研基金 (No :413 0 70 3 0 1)
