• 目标回波信号是水声探测系统主要的信息来源。

    Target echo signals are the main information source in underwater acoustic detection system.

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  • 最后分析了模拟目标回波经脉压滤波器的处理结果。

    Finally, the results of the simulated target echo signals passing through a compressed filter are analyzed.

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  • 研究了一种基于非相参雷达目标回波的特征提取算法。

    The method of radar target waveform feature extraction is studied based on non coherent radar target echo.

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  • 由于目标回波的低信杂比,需要采集卡具有较高的采样率和分辨率。

    Besides, the target echo signal is often weak with strong noise, so data acquisition (DAQ) card should sustain high sampling frequency and resolution.

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  • 提出了基于目标回波自相关矩阵本征值分解提取多目标特征的新方法。

    A method extracting multiple target feature by the eigenvalues decomposition of target echo autocorrelation matrix is presented.

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  • 引信要依据弹目交会状态精确控制炸点,就需要从目标回波中获取信息。

    Fuze must obtain information from the echo of target if it wants to accurately control the explosive spot according as the target-missile approaching status.

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  • 该方法极大地提高了在高强度直达波干扰下主动声呐提取目标回波的精度。

    This method is greatly increased in the high-intensity direct wave interference under active sonar echo extraction accuracy.

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  • 着重从目标回波、海杂波、噪声三个方面对雷达回波信号进行了分析和建模。

    This paper realize the radar echo signal analysis and modeling from three aspects: contain the target echo, sea clutter, rain clutter and noise.

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  • 准确、有效的目标回波模型是声纳目标,特别是小尺度目标探测与识别的基础。

    An accurate and effective sonar target echo model is a basis of detecting and recognizing sonar target, especially small scale target.

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  • 基于斜视成像几何模型,分析了目标回波信号距离走动比距离弯曲大得多的特点。

    Based on the imaging geometry of squint mode, the characteristics of echoes in squint mode are analyzed in this paper.

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  • 实际目标不一定存在孤立点,本文提出了一种对连片目标回波运动补偿的新方法。

    However, in reality, this isolated point can not always be found. A new scheme which can compensate the motion effects for continuous target return is presented in the paper.

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  • 脉冲压缩雷达对目标回波具有很高的压缩比,而对不匹配的干扰信号则压缩比很小。

    Pluse compressed radar has a high pluse compression ratio for target signals, but low compression ratio for not matched jamming signals.

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  • 该方法对提取目标回波信号、提升其信号强度、抑制杂波干扰和噪声有良好的效果。

    This method is good for the echo signal is distilled and the intensity is advanced and the clutter and the yawp are restrained.

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  • 本方法对目标回波信号采用了相干视频模拟法,在视频上模拟目标回波的多普勒频率。

    In the method, the target reflected signal is generated by the way of coherent video simulation and the Doppler frequency of target is simulated on video.

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  • 根据该区域目标模型可以计算出测绘区域的目标回波信号,经处理后得到测绘区域图像。

    With this simulation targets model, the targets return signals will be calculated. And then the images of the scanning area are given.

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  • 利用箔条回波和目标回波时域波形的差异,提出了一种基于灰色理论的箔条干扰识别方法。

    This paper presents a recognition method of chaff jamming by difference of time domain waveforms between echoes of target and of the chaff.

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  • 本文利用双谱分析方法,提出用非高斯ar模型对雷达目标回波信号进行参数化双谱估计。

    With bispectrum analysis, an ar model parametric bispectrum estimation is presented for radar target echoes.

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  • 为了模拟水下运动目标的声呐回波,研究了一种高精度、多功能的水下目标回波模拟技术。

    To simulate the sonar echo of the underwater moving target, a high precision and multi-function underwater target simulation technique is proposed.

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  • 并且讨论了在脉冲多普勒相参体制雷达下目标回波的相位信息以及目标信号的多普勒谱特性。

    Then discussing the phase information and Doppler characteristic of target echo wave in the pulse Doppler phase radar.

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  • 通过对目标回波的处理,实现了目标架数的自动识别。最后给出了它们在实际应用中的结果。

    Automatic recognition of target number is realized through processing of target echo, and some practical results is given at end of this article.

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  • 给出了一个基于飞机目标回波波形对机群目标进行分类识别的低分辨雷达目标识别系统例子。

    This paper gives an example of echo-shape based ATR system of the low-resolution radar.

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  • 讨论了无源雷达成像的平动补偿,建立目标回波模型,利用相邻回波包络的相关性进行运动补偿。

    Motion compensation for passive radar imaging is discussed in the paper and echo-signal models for target are given.

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  • 在红外激光测距中,一般是通过测量发射连续激光脉冲和被测目标回波信号的相位差而求得被测距离的。

    We obtain the distance by measuring the difference of the phase between the continuous laser signal transmitted and the signal reflected by the object in the infrared rays distance measure.

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  • 针对目标回波检测,本文采用了长时间相干积累的方法,仿真结果表明该方法提高了目标回波积累峰值;

    Aiming at target echo signals detection, long-time coherent accumulation processing is adopted. Simulation results show that the method improves the power of target echo signals.

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  • 无源雷达系统接收到的信号有四部分组成:直达波信号、静物回波信号、动目标回波信号以及干扰噪声。

    The signal received by passive coherent radar contain four-part: direct signal, echos of still object, echos of moving object, and interference.

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  • 雷达目标模型化是提取目标的轮廓和重心等特征参数,进而通过模型匹配对目标回波进行判别处理的过程。

    Radar target modeling is a technology which can extract the targets outline and barycenter characteristic, then does the distinction processing through the model matching to targets.

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  • 利用多重分形的概念对海杂波和舰船雷达目标回波进行了分析,并提取出其多重分形特征用于舰船目标检测。

    In this paper, sea clutter and radar echoes from ship targets are analyzed with the concept of multifractal, and their multifractal dimensions are extracted for detection of ship targets.

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  • 研究了信号及杂波、噪声在信号处理之后的统计特性,并通过仿真系统产生了目标回波数据及检测背景噪声。

    This paper also studies the statistics characteristic of signal, clutter and noise after the system disposal, and generates target data and detecting background noise using the simulated system.

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  • SAR目标回波基带信号产生模块是SAR目标回波模拟器的关键单元之一,其设计影响到模拟器系统的性能。

    SAR echo base-band signal produce module is the key unit of the SAR echo signal simulator, its design affects the performance of the SAR echo signal simulator.

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  • SAR目标回波基带信号产生模块是SAR目标回波模拟器的关键单元之一,其设计影响到模拟器系统的性能。

    SAR echo base-band signal produce module is the key unit of the SAR echo signal simulator, its design affects the performance of the SAR echo signal simulator.

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