| 1. | The purpose of this paper is to improve the received signal by study of the polarization character of target in snow clutter and finding the optimum polarization states of antennas
运用拉格朗日乘子法求出了收发天线的最佳极化方式以增强信号抑制杂波干扰。 |
| 2. | The key to the settlement of the question of effective detection of ground and low air targets lies in adaptive of effective clutter suppression in airborne radar
因此,有效地抑制这种时间非平稳和空间非平均的杂波干扰是雷达系统有效完成地面目标和低空飞行目标检测必须解决的首要问题。 |
| 3. | 2 . the spectrum correcting technique is applied in one dimension distance sidelobe restraining successly and deal with well with this understanding of zero or low doppler frequency and without noise , mussy weaves
2 、在一维距离旁瓣抑制中成功地应用了谱修正技术，在无噪声、杂波干扰，零或低多普勒频率情况下，处理效果良好。 |
| 4. | The author researchs the jamming theory based on the leading of parameters , confirmed this method to have the good jamming effect regarding sar through the simulation experiment and quality evaluation of sar image
作者分析了基于参数引导式类杂波干扰的生成机理,并通过仿真实验和对类杂波干扰后sar图像的质量评估验证了该方法对于sar有较好的干扰效果。 |
| 5. | Bsr confronts with complicated clutter circumstance , it ' s the most important thing we must do to restrain clutter not smooth in time domain or frequency domain in order to detect interesting targets of mainland and sea level
机载战场侦察雷达面临的杂波环境是很复杂的，有效地抑制时间非平稳和空间非平稳的杂波干扰是雷达系统完成地面目标、海洋目标以及低空目标检测必须首要解决的问题。 |
| 6. | Localization underground target algorithm base on the best automatic curve fitter can survey velocity of electromagnetic wave in underground medium , and locate underground target . it ’ s virtue is small number of operation times . it ’ s shortcoming is subject to clutter
基于自动最佳拟合曲线的波速测定和目标定位方法可以比较准确地计算出波速,计算出目标位置,优点是运算量小,缺点是容易受到杂波干扰的影响。 |
| 7. | 4 . the signal data collected in expteriment are taken out in emulational research of system experiment . many methods such as adding window in frequency field , eliminating static object and so on restrain the width and sidelobe of static mussy weaves and detect out the target availably
4 、在系统实验仿真研究中调出实验采集信号数据，使用频域加窗不加窗、清除静态目标等方法很好地控制了静态杂波干扰的幅度及旁瓣，有效地检测出了目标。 |
| 8. | Then evaluate the counter - suppression ability of similar noise jamming toward the anti - jamming methods of sar , through the simulation experiment . at last the author analyzed the jamming ability of similar noise jamming to the moving target indication ( mti ) and carried on the confirmation through the simulation experiment
然后对类杂波干扰对于sar抗干扰方式的反抑制性能进行评估,通过仿真实验验证了类杂波干扰具有较好的反抑制能力。最后分析了类杂波干扰对运动目标显示( mti )的干扰效果,通过仿真实验进行验证。 |
| 9. | This dissertation analyzes the detection performance of dpca technique based on distributed spaceborne sar system , particularly analyzes the k - distributed clutter ’ s influence of the detecting results . 4 . we compare the detection performance of ground moving target of the ati and dpca technique for the new model of distributed spaceborne sar in detail
3 .分析了在不同信杂比、信噪比条件下以及不同目标方位向速度对dpca方法检测性能的影响,特别研究了k分布背景杂波干扰对动目标检测性能的影响。 |
| 10. | This dissertation analyses the back ground clutter ’ s characteristic of sar and the serious influence to sar target detection and classification . based on analyzing jamming methods in existence such as noise jamming and cheat jamming , and the anti - jamming ability of high - resolution sar , the author puts forward a new matching jamming which is time , frequency and dopple fields multidimensional - matching - overcast similar clutter ’ s jamming
本文通过对sar背景杂波的特性分析和背景杂波对sar目标检测和识别的影响,结合目前传统干扰体制的不足,以及sar自身强抗干扰的能力,研究了一种对sar的时域、频域和多普勒域多维匹配覆盖的类杂波干扰新方法。 |
