• 文中详细研究了韦伯杂波形状参数目标起伏特性检测器参数对雷达检测性能影响得出一些新的结果

    The effects of the shape parameter of weibull clutter, the target fluctuating characteristics, and the parameter of the detectors are studied in detail and some new results are obtained.

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  • 不会容易,我们碰到波折起伏就像先前形容过过山车一样,但是我相信目标能够实现的。

    It won't be easy. We'll have our ups and our downs, the roller coaster like I described earlier, but I think that's achievable.

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  • 漂流线当作目标随意放着随波起伏

    The drift line is littered with objects abandoned by the waves.

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  • 目标模型包括船舶距离方位速度回波幅度、幅度起伏

    The model of radar target is composed of distance, bearing, speed, heading and amplitude of echo, fluctuation.

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  • 本文讨论能量受限最大检测指数为最优化准则混响环境中缓慢起伏目标检测的最佳信号设计问题。

    This paper is concerned with the optimum waveforms foe detection in reverberation environment, under a maximum detection factor criterion with an energy constraint.

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  • 论文针对L波段ISAR,通过四个数学模型仿真电离层引起目标回波相位起伏折射效应以及回波幅度闪烁ISAR图像的影响

    This paper gives four models to simulate effects of phase fluctuation, refraction and amplitude scintillation due to ionosphere on L-band ISAR.

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  • 方法基于干扰目标能量起伏特性差异确定提取特征因子再利用RBF神经网络方法进行分类

    In this method, the feature factor is identified and extracted through the energy of the jamming object and differences in the undulating property, and then is classified with the help of RBF.

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  • 据此建立目标噪声引起起伏误差解析模型,具有简单实用特点,制导系统制导精度计算提供了种新途径。

    A simple and practical analytical model of fluctuation error (RMS miss distance due to glint noise) of the homing guidance System, is then obtained to calculate guidance accuracy.

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  • 海面背景下海面连绵起伏波浪反光使图像的信噪对比度较低,而且舰船目标像素较少。

    The targets SNR(Signal Noise Ratio)and contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.

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  • 介绍了雷达中频回波信号设计原理推导不同波形种类的回波信号表达式目标建立了4截面积起伏模型

    The design principle of radar intermediate-frequency echo is introduced; different kinds of expression of echo signals are deduced, and 4 categories of wave of target cross section are modeled.

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  • 算法滤波算法估计背景中的低频成分,图像局部方差估计背景起伏计算出局部自适应目标检测判决门限

    The algorithm adopts low pass filter to estimate the background and calculates the standard deviation to estimate the fluctuation of background to get the local adaptive detection threshold.

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  • 各阵元增益幅度不一致条件下,提出了一种起伏目标方向角多普勒频率估计方法。

    A new blind estimate of 2d Angle and Doppler frequency for fluctuating target signals was proposed with sensor gain uncertainties.

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  • 实验结果表明对于含有目标信息起伏背景图像,背景对消最佳滤波方法,应采用滤波

    Then, the experiment results show that in all of four filtering methods, the open residue filtering method is the best for background drop.

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  • 针对波环境中的起伏目标MIMO雷达经过GMTI处理之后,对以任意角度运动目标获得较高改善因子

    As to the non-fluctuation targets in the clutters, MIMO radar can acquire higher improvement factor to targets moving at arbitrarily Angle after the processing of GMTI.

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  • 为了检测出起伏背景下的弱小目标,需要红外图像进行背景抑制

    In order to detect the weak targets from clutter background, the background suppression of IR image is necessary.

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  • 但当背景起伏较大时,基于背景预测弱小目标检测方法检测性能会受到影响。

    Since background in the IR images changes quite slowly, it is meaningful to detect targets by background prediction.

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  • 海面背景下海面及连绵起伏波浪反光使图像的信噪比对比度低,而且舰船目标像素较少。

    The targets SNRand contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.

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  • 针对波浪持续起伏较大的非高斯噪声提出了目标轮廓提取方法

    To resolve the non-gauss noise problem such as wave fluctuating acutely at sea, a new algorithm for extracting object contour is presented.

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  • 针对波浪持续起伏较大的非高斯噪声提出了目标轮廓提取方法

    To resolve the non-gauss noise problem such as wave fluctuating acutely at sea, a new algorithm for extracting object contour is presented.

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