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Description: 对MTD雷达中进行杂波滤除的滤波器组，就是多普勒滤波器组的仿真-Of MTD radar clutter filter in the filter group, that is, the simulation of Doppler filter bank
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Author: 刘姝 |
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Description: 本文首先介绍了近些年来雷达模拟器获得广泛应用及其原因，然后对目标模
型、杂波模型和机载下视脉冲多普勒雷达的频谱分布进行了分析。接着，研究了
雷达回波信号模拟的实现方法，重点是采用网格映象法对地杂波信号的模拟进行
了分析和推导，并采用此方法对瑞利分布的高斯谱杂波、雷达回波信号进行了仿
真和分析。最后，针对用于某机载雷达信号模拟器系统的数字信号处理器进行了
设计和分析。
-This paper first introduces the radar simulator in recent years is widely available and the reasons for, and then on the target model, and the clutter model of airborne pulse Doppler radar, as under the spectrum distribution is analyzed. Then, to study radar signal simulation methods, with emphasis on the use of grid mapping method to the simulated clutter signal analysis and derivation, and use of this method, the Gaussian distribution of the Rayleigh spectrum of clutter, the radar echo signal simulation and analysis. Finally, for an airborne radar signal simulator system digital signal processor has been designed and analyzed.
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Author: 萝卜 |
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Description: ISAR雷达成像，采用距离－多普勒处理得到目标的图像-ISAR radar imaging, the use of distance- Doppler processing target image
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Author: chenji |
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Description: 仿真了地球杂波的情况。考虑了地球自转带来的多普勒旋转等影响。仿真结果和理论相一致。可作为星载雷达地球杂波仿真的参考-Clutter simulation in the case of the Earth. Taking into account the Earth' s rotation brought about by the impact of Doppler rotation. Simulation results and theoretical line. Can be used as space-borne radar clutter simulation of the Earth' s reference
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Size: 9216 |
Author: Polo |
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Description: 一种通用型PD雷达目标模拟器,介绍一种雷达目标模拟器，用两台高稳定度且具有外时基功能的频率合成微波信号源分别作为回波信号及杂波信号载波源，其外时基口作为雷达相参信号输入口。视频脉冲延时及多普勒撅移都可由计算机控制，模拟雷达与目标之间的不同距离及相对速度.模拟器收发共用一付
天线，天线安装在可旋转机构上，用以检测雷达角跟踪能力.
-A Common PD Radar Target Analogue
, introduced a radar target simulator, with two high-stability and external time base function of frequency synthesized microwave signal source, respectively, as the echo signal and the the clutter signal carrier source, its external time base port as radar coherent signal input port. The video pulse delay and Doppler pursed shift can by distance and relative speed between different computer controlled, simulated radar target simulator transceiver shared a pair of antenna, antenna mounted on the rotatable mechanism to detect radar angle tracking capacity.
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Size: 239616 |
Author: 李亮 |
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Description: 关于常规脉冲多普勒地面雷达的杂波建模与仿真-On the conventional pulse Doppler radar ground clutter Modeling and Simulation
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Author: 程程 |
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Description: 使用维纳分布进行瞬时频率估计用来校正电离层非线性相位污染带来的频带展宽-High-frequency (HF) sky-wave radar
signals propagate to and from the target by means
of the ionosphere. The difficulty in obtaining very
narrow beamwidths at HF, and the long ranges
involved, mean that the signal backscattered from
the ground is often several orders of magnitude
greater than the target echo. To resolve the target,
coherent signal processing techniques are necessary,
detecting the target echo by virtue of the
Doppler shift caused by the target’s radial velocity.
Unfortunately, movement of the ionospheric
layer by which the radar signal has propagated
often causes the clutter spectrum and target to
spread in the frequency domain, rendering
extended coherent integration pointless. The
movement of the ionosphere can be regarded as
producing frequency modulation of the radar
signal, and thus if this modulation can be estimated
the radar signal may be corrected for the ionospheric
contamination. A technique using the
complex argument of the first-order mo
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Author: sunrong |
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Description: Azimuth dependence of Doppler spectra of sea clutter at low grazing angle
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Size: 199680 |
Author: Dawood Khan |
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Description: 双极化多普勒天气雷达地物杂波时域和频域抑制的研究（硕士学位论文）-Dual-polarization Doppler weather radar ground clutter suppression in time domain and frequency domain studies (Master thesis)
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Author: |
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Description: 作者分析了海杂波的多普勒谱特性，给
出了两种基于多普勒谱特征的检测方法，应用联合瑞利概率密度函数描述海杂波
多普勒谱的统计特性和熵值方式表示多普勒谱的波形特性。
-As the present study on sea clutter are shown, based on the analysis of sea clutter
Doppler spectrum characteristics, two target detection algorithms are proposed, namely,
a Bayesian detection algorithm based on joint Rayleigh distribution and a feature
detection algorithm based on the entropy feature extracted from signal’s Doppler
spectrum
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Author: majun |
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Description: 。给出了时域滤波的基本原理以及通常采用的
IIR 椭圆地物杂波滤波器的设计方法。重点研究了回归滤波器这一时域滤波算
法。从正交多项式的拟合出发，给出了回归滤波器抑制地物杂波的基本原理及
其滤波实现过程。通过对回归滤波器的计算复杂度的研究，寻找使回归滤波器
计算量最小的正交多项式。分析了回归滤波器频率响应特性，比较了回归滤波
器与IIR 椭圆地物杂波滤波器的计算复杂度。利用仿真的雷达信号，分析了回
归滤波器的地物杂波抑制性能。回归滤波器实际上是一高通滤波器，它在滤掉
低频地物杂波的同时，对落在滤波器阻带内的天气回波信号同样会造成衰减。
在天气回波信号谱宽固定的情况下，通过改变天气回波信号的平均多普勒频率，
分析了回归滤波器对它的衰减情况。在基于一组实际采集的雷达信号的基础上，
给出了回归滤波器的地物杂波抑制比随着滤波器阶数的变化情况。-Firstly, this dissertation introduces the research background and significance of
ground clutter suppression, analyzes the characteristics of the ground clutter and
weather signals in the Doppler weather radars and simulates Doppler radar echo
signals (It includes ground clutter, weather echo signals and the mixture of them).
The simulated signals are used later to study the time and frequency domain ground
clutter suppression.
Secondly, this dissertation talks about the time domain filtering, gives the basic
theory of time domain filtering and describes the design method of the usually used
fifth-order elliptic infinite impulse response (IIR) ground clutter filter. In the time
domain, the work focuses on the regression filter. From the orthogonal polynomials
fit, this dissertation gives the basic theory of the regression filter for ground clutter
suppression and the filtering process using a regression filter. Through the study of
the computational complexity of regression
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Author: 刘小洋 |
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Description: 关于常规脉冲多普勒地地面雷达的杂波建模与仿真
-Conventional pulsed wave Doppler to the ground radar clutter modeling and simulation
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Size: 44032 |
Author: bl |
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Description: 对MTD雷达中进行杂波滤除的滤滤波器组，就是多普勒滤波器组的仿真
-MTD radar clutter filter filter filter bank, is the simulation of the Doppler filter
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Author: bl |
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Description: 一种MIMO体制天波雷达多普勒扩展杂波抑制方法-Doppler radar system for MIMO-day extension clutter suppression method
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Size: 1273856 |
Author: 韩军义 |
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Description: 单基侧视杂波谱和角度多普勒迹的仿真程序，如果有什么不对的还望大家指点，希望对大家有帮助-The simulation program of single side clutter spectrum and angle Doppler trace, if what is wrong also hope everyone pointing, we hope to help
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Author: yang |
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Description: A Generalized Clutter Computation Procedure
for Airborne Pulse Doppler Radars
ALAN L. FRIEDLANDER
LARRY J. GREENSTEIN, Member, IEEE
IIT Research Institute
Chicago, Ill. 60616
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Size: 2568192 |
Author: ali |
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Description: A GROUND CLUTTER COMPUTATION PROCEDURE FOR
AIRBORNE PULSE DOPPLER RADARS
LIU Tao, ZHANG Yong, LUAN .Iin-long, LIU Zhenhua", MA Hong-guang
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Size: 1300480 |
Author: ali |
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Description: A novel simulation method of ground clutter for airborne pulse Doppler radars
REN Yuchen, ZENG Dazhi*, SUN Hanwei, LIU Haibo
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Size: 372736 |
Author: ali |
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Description: A Simple Simulation Method of Ground Clutter
for Airborne Pulse Doppler Radar
LI Ming, LIN Yu-mei, Ruan Feng
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Size: 2396160 |
Author: ali |
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Description: Doppler Radar Clutter
J. L. FARRELL, MEMBER, IEEE, AND R. L. TAYLOR, MEMBER, I-Doppler Radar Clutter
J. L. FARRELL, MEMBER, IEEE, AND R. L. TAYLOR, MEMBER, IEEE
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Size: 1577984 |
Author: ali |
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