• 论述了各种同步误差来源分析了引入各种同步误差后回波相位影响

    The sources of variant synchronization errors are discussed, the analysis of echo phase effected by variant errors is given.

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  • 本文报道了一种基于脉冲回波相位超声波速度测量方法,并给出了详细理论推导过程。

    This paper presents the development of a pulse-echo measurement method, based on the use of a phase spectrum to determine the ultrasonic wave velocity. A detailed descripsion of the theory is given.

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  • 利用电离层垂直探测中的组合脉冲控制回波相位测量分析方法,开发实现了一种电离层扰动观测模式

    This paper presents and realizes an ionospheric disturbance observation mode by using combinational pulses control and echo's phase measurement analysis in ionospheric vertical sounding.

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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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  • 文中以脉冲雷达回波信号相位信号为例。

    Phase coded signal and the pulse radar echo have been simulated.

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  • SPGA算法利用估计得到侧摆对距离徙动校正前的回波数据进行包络相位补偿

    SPGA algorithm compensates the envelope and phase of the echo signal which has not be corrected range migration.

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  • 基于雷达回波信号PGA算法时域估计校正系统相位误差一种方法,算法简单。

    PGA algorithm based on radar echo signal is one method of estimating and correcting phase error in time domain, and its algorithm is simple to use.

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  • 利用等效相位中心原理建立天线斜置情况下三通道运动目标回波信号模型,给出了天线倾斜角动目标检测、最小可检测速度盲速影响。

    The echo model of moving target is established based on three channels with the slant-placed antennae in terms of the equivalent phase center principle.

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  • 本文介绍了一种利用雷达回波幅度信号频谱相位信息进行角度分辨方法

    A method which makes use of the phase information of spectrum of radar echo amplitude signal to make azimuth super resolution is given.

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  • 并且讨论脉冲参体制雷达目标回波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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  • 在深入分析目标极化回波基础,针对互易性目标,提出了一种基于交叉极化分量相位对齐散射矩阵校准方法

    A method of measuring and calibration based on aligning the phase of the cross-polarization of the scattering matrix is proposed.

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  • 这些信号分别模拟回波信号生成提供了天线增益大小、时间基准相位基准载波频率大小等重要参考信息。

    These signals provide an important reference of the gain of antenna, the time reference, the phase reference and the frequency of carrier wave for generating stimulant echo signal.

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  • 红外激光测距中,一般是通过测量发射连续激光脉冲目标回波信号相位求得距离的。

    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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  • 针对合成孔径雷达ISAR转角目标回波特点,提出通过快速生成包络相位的方法来构成目标回波

    To consider the echoes' characteristic of the moving target with small angle for inverse synthetic radar (ISAR), the target's echoes are simulated by generating the envelope and phase quickly.

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  • 然后通过引入一个相位斜坡来实现回波距离向上的平移。

    Then, the echo is shifted by introducing a phase ramp in the frequency domain.

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  • 正弦调制相位信号微动目标雷达回波微多勒信号一般形式

    Signals with sinusoid modulated phase is the general form of micro-Doppler signals in radar echoes from targets with micro-motions.

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  • 距离对准要将同一散射点在各个不同回波中的样值对准到同一距离门相位校正要将雷达目标之间平动普勒相位从各个回波中移除。

    This thesis is aimed towards a research of the technologies of translation compensation. It consists of range alignment and phase adjustment. There are many methods of translation compensation.

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  • 雷达回波信号幅度相位多普勒移外,还存在第四特征——极化信息

    Besides amplitude, phase and Doppler frequency, polarimetric information is the fourth characteristic in the radar echo.

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  • 由于多点回波叠加区域相位并不准确,而且相位解缠中影响判别,因此对叠掩区域进行识别具有重要意义。

    The interferometric phase of layover region is not accurate due to the superposition of multi-echo, it makes the discrimination difficult in phase unwrapping.

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  • 讨论了噪声补偿影响,提出了回波数据拟合曲线光滑质心距离轨迹相位轨迹的方法

    The noise effect on the motion compensation is discussed. To solve the problem, a new method 'which USES echo goodness-of-fit curve to smooth the centroid range trace and phase trace is proposed.

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  • 激光雷达探测中,关于多次散射雷达回波的研究,散射相位函数是个非常重要物理量

    Scattering phase function is a very important physical parameter in lidar detection of multiple scattering returns.

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  • 方法通过截获雷达发射信号时间域进行正弦相位调制得到等效回波信号。

    In this method, the echo of the synthesized equivalent micro-motion point is obtained by modulating the phase of intercepted radar signal with sinusoid in the slow time.

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  • 以往目标检测视频信号上进行的,回波幅度进行检测,丢掉了信号相位频率信息

    Usually the radar video signal is used to detect, but it only utilizes the amplitude of the signals and lost the information of phase and frequency of radar signals.

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  • 然后对窄带雷达回波采样序列进行相位匹配变换搜索匹配函数最大值,从而得到质心位置参数估计值

    The phase matching transform is performed on the sample series. of narrow-band radar echo, and the centroid position parameter is estimated by searching for the maximum value of the matching function.

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  • 脉冲压缩线性调频信号相位编码信号;目标回波信号;ADS

    Pulse compression; Linear frequency modulated signal; Phase encoding signal; Echo signal; ADS;

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  • 利用相位共轭极化拍频光谱术V型能级系统中的光子回波进行了研究。

    Photon echo in polarization beat spectroscopy is studied for a V-type three-level system.

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  • 利用相位共轭极化拍频光谱术V型能级系统中的光子回波进行了研究。

    Photon echo in polarization beat spectroscopy is studied for a V-type three-level system.

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