欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
研究了沿航迹多通道正侧视雷达无辅助校正源的基线长度估计问题．在获得场景距离一多普勒图像的基础上，利用回波相位矢量相关矩阵特征分解有效减轻了运动目标信号污染对通道相位特性估计的影响，采用最小二乘方法拟合通道绝对相位特性与多普勒频率的线性关系获得沿航迹基线长度的正确估计．理论分析和仿真结果表明该算法对运动目标信号污染具有稳健性，能获得毫米级的基线估计精度，满足测速、定位要求．
英文摘要：
For the purpose of estimation of the along-track baseline in the absence of an auxiliary calibrating source, a new algorithm which is performed in two stages is prolSosed. The first stage is carried out at Doppler beam sharpening （DBS） images to estimate channel phase relationship by eigendecomposing of the phase correlation matrix. Thus the problem of target signal contamination can be alleviated observably. Finally, the along-track baseline is estimated based on the unwrap phase of the clutter space steering vector by using the least square algorithm. The effectiveness for along-track baseline mismatch and the robustness for target signal contamination are confirmed by performance analysis and extensive simulation.
同期刊论文项目
同项目期刊论文
Multitarget identification and localization using bistatic MIMO radar systems (vol 2008, art no 2834
Joint frequency ambiguity resolution and accurate timing estimation in OFDM systems with multipath f
PATTERN SYNTHESIS OF PLANAR ANTENNA ARRAY VIA CONVEX OPTIMIZATION FOR AIRBORNE FORWARD LOOKING RADAR
Performance improvement for monostatic clutter mitigation using space-time-range three dimensional a
Unambiguous Doppler centroid estimation approach for SAR data based upon compressed signal magnitude
位置：