-
1.发明公开Irregular pulse repetition time (PRT) deconvolution method and systems, Doppler and clutter processing 有权对于irregularen脉冲间隔，多普勒和杂波的处理方法和制备系统的发展
公开(公告)号：EP1369703A3
公开(公告)日：2005-01-05
申请号：EP03101597.7
申请日：2003-06-02
IPC分类号： G01S13/22 , G01S7/41 , G01S13/524
CPC分类号： G01S7/414 , G01S7/288 , G01S13/225 , G01S13/524
摘要： This invention relates to radar signal processing. In particular, this invention concerns Doppler processing and clutter filtering on irregular Pulse Repetition Time (PRT) sampled signal. This invention solves the above-mentioned drawbacks, in particular solving the velocity ambiguity and filtering any type of clutter, providing a deconvolution method which filter any kind of clutter even varying clutter like sea clutter, rain clutter... The deconvolution method of irregular pulse repetition time sampled signal x ( t m ), comprises the following steps: [S1] conversion of the irregular samples x(tm) to regular samples r(iTε); [S2] computation of the spectrum dft(r) of these regular samples; [S3] isolation of the clutter spectra in dft(r) by assuming clutter spreads over more than a few range gates; [S4] estimation of the clutter spectral lines from the mean and the width of the isolated clutter spectra; [S5] subtraction of the estimated clutter spectra from the total spectrum dft(r); [S6] deconvolution of the remaining spectra.
-
2.发明公开Irregular pulse repetition time (PRT) deconvolution method and systems, Doppler and clutter processing 有权Entfaltungsmethode und-systemfürirregulärenImpulsabstand，Doppler-und Clutter-Verarbeitung
公开(公告)号：EP1369703A2
公开(公告)日：2003-12-10
申请号：EP03101597.7
申请日：2003-06-02
IPC分类号： G01S13/22 , G01S13/524
CPC分类号： G01S7/414 , G01S7/288 , G01S13/225 , G01S13/524
摘要： This invention relates to radar signal processing. In particular, this invention concerns Doppler processing and clutter filtering on irregular Pulse Repetition Time (PRT) sampled signal.
This invention solves the above-mentioned drawbacks, in particular solving the velocity ambiguity and filtering any type of clutter, providing a deconvolution method which filter any kind of clutter even varying clutter like sea clutter, rain clutter...
The deconvolution method of irregular pulse repetition time sampled signal x ( t m ), comprises the following steps:
[S1] conversion of the irregular samples x ( t m ) to regular samples r ( iT ε );
[S2] computation of the spectrum dft( r ) of these regular samples;
[S3] isolation of the clutter spectra in dft( r ) by assuming clutter spreads over more than a few range gates;
[S4] estimation of the clutter spectral lines from the mean and the width of the isolated clutter spectra;
[S5] subtraction of the estimated clutter spectra from the total spectrum dft( r );
[S6] deconvolution of the remaining spectra.摘要翻译： 本发明涉及雷达信号处理。 特别地，本发明涉及对不规则脉冲重复时间（PRT）采样信号的多普勒处理和杂波滤波。 本发明解决了上述缺点，特别是解决了速度模糊和过滤任何类型的杂波，提供了一种去卷积方法，该方法可以对任何种类的杂波进行滤波，甚至可以像海杂波，雨水杂波等杂波。 不规则脉冲重复时间采样信号x（tm）的去卷积方法包括以下步骤：将不规则样本x（tm）转换为常规样本r（iTε）; 这些常规样本的频谱dft（r）的计算; 通过假设杂波扩散到超过几个范围门的方式，在dft（r）中隔离杂波频谱; 从孤立杂波光谱的平均值和宽度估计杂波谱线; ÄS5u从总谱dft（r）中减去估计的杂波谱; ÄS6Ü反卷积的剩余光谱。
-
3.发明授权A METHOD FOR FILTERING SEA CLUTTER IN A RADAR ECHO USING A HYDROGRAPHIC MODEL 有权一种利用水文模型滤除雷达回波中海杂波的方法
公开(公告)号：EP2016441B1
公开(公告)日：2009-09-02
申请号：EP07728551.8
申请日：2007-04-26
CPC分类号： G01S7/2923 , G01S7/414
摘要： There is disclosed a method for filtering sea clutter in a radar echo using a hydrographic model. The method comprises the following steps : determination of parameter values of the hydrographic model using the radar echo; estimation of the sea clutter corresponding to the sea surface as deduced from the hydrographic model; filtering of the estimated sea clutter from the radar echo. Application : radar detection.
摘要翻译： 公开了一种使用水文模型在雷达回波中过滤海杂波的方法。 该方法包括以下步骤：使用雷达回波确定水文模型的参数值; 根据水文模型推导的与海面相对应的海杂波的估计; 从雷达回波中估计估计的海杂波。 应用：雷达检测。
-
4.发明授权Irregular pulse repetition time (PRT) deconvolution method and systems, Doppler and clutter processing 有权对于不规则脉冲间隔，多普勒和杂波的处理方法和制备系统的发展
公开(公告)号：EP1369703B1
公开(公告)日：2010-02-17
申请号：EP03101597.7
申请日：2003-06-02
IPC分类号： G01S13/22 , G01S7/41 , G01S13/524
CPC分类号： G01S7/414 , G01S7/288 , G01S13/225 , G01S13/524
-
5.发明公开A METHOD FOR FILTERING SEA CLUTTER IN A RADAR ECHO USING A HYDROGRAPHIC MODEL 有权法滤波SEEGANGSECHO的雷达回波使用一个模型水文
公开(公告)号：EP2016441A1
公开(公告)日：2009-01-21
申请号：EP07728551.8
申请日：2007-04-26
CPC分类号： G01S7/2923 , G01S7/414
摘要： There is disclosed a method for filtering sea clutter in a radar echo using a hydrographic model. The method comprises the following steps : determination of parameter values of the hydrographic model using the radar echo; estimation of the sea clutter corresponding to the sea surface as deduced from the hydrographic model; filtering of the estimated sea clutter from the radar echo. Application : radar detection.
-
-
-
-
搜索结果
5 条记录 (耗时 0.009 秒)
