针对毫米波末制导雷达角跟踪精度差的问题,提出基于频域高分辨像的单脉冲测角算法。
Designed for the lower Angle precision of the MMW terminal guidance radar in angular tracking, the new algorithm based on high frequency resolution profile is proposed in this paper.
从高分辨像出发,分别用十边形,五角形以及扁六边形和船形构筑了五种十次准晶近似相的各三种平面结构模型。
Three different planar structural modes of 5 approximants have been put forward by using pentagon, decagon, flat hexagon and boat-shape respectively.
这种矩形机器人,看上去有点像缩小版的太阳能汽车。它装备着高分辨率的摄像机和传感器,能探测到长的过分高大的树木。
The rectangular robot--looking a bit like a scaled down version of a solar car--is equipped with a high-definition camera and sensors that can detect overgrown trees.
提出了基于小波包变换和改进奇异值分解的高分辨雷达目标一维距离像特征提取方法。
A feature extraction method of high-range-resolution radar profiles, which takes advantage of wavelet packet transform and modified SVD (singular value decomposition) was proposed.
本文研究基于一维距离像的高分辨雷达目标识别方法。
This paper studies target recognition for high resolution radar by range profile.
由于雷达的高分辨距离像对方位变化非常敏感,模板库中对每个目标都必须按较小的方位范围建立所有有关方位的模板。
Due to the aspect sensitivity of high-resolution range profile (HRRP), the template database should include all the templates for each small aspect range.
主动探测通过不同的波形设计方法,研究了各种高分辨力信号实现高分辨距离像的方法及其优缺点和应用。
For active detection, through the different methods of waveform design, ways to synthesize high-resolution range profiles by different high-resolution signals is researched.
雷达高分辨距离像包含目标的几何结构特征,已广泛应用于雷达目标识别领域。
Radar high resolution range profile provides potentially discriminative structure feature on the geometry of target, which has been used widely on radar target recognition.
而后,基于全极化高分辨雷达,提出了一种利用目标极化信息一维距离像的综合识别方法。
Then, a fusion recognition method was proposed using polarized information of target under the high range resolution fully polarized radar.
讨论了基于高分辨距离像(hrrp)的目标长度特征提取原理。
The basic theory of extraction of target projection length using high resolution range profile (HRRP) is discussed.
本文阐述了高分辨率一维距离成像的原理,提出了一种基于目标距离像的目标信号检测和跟踪方法。
The principle of obtaining one dimensional high resolution range profiles (HRRP) of a target is introduced, and a method of target detection and tracking based on HRRP is presented.
基于飞机目标高分辨一维距离像,给出了一种目标识别方法。
In this paper, based on aircraft range profile of high resolution radar target, a recognition method was presented.
研究了高分辨雷达目标一维距离像的原理及仿真方法并对高分辨雷达一维距离像的姿态敏感性进行了分析。
In the paper, there are: the principle and simulation method of high resolution range profiles is studied, and the pose sensibility of range profiles is investigated.
本文主要对高分辨距离像雷达目标识别方法进行了研究和探索。
This thesis mainly investigates the methods of radar target recognition based on High Range Resolution Profile (HRRP).
本文基于滑动相关理论,结合超宽带(uwb)雷达能获取目标高分辨力距离像的特性,提出了一种基于滑动相关的UWB雷达目标识别方法。
A method of UWB radar target recognition based on moving correlation was put forward in terms of moving correlation theory combining with high resolution range imaging of UWB radar.
首先,给出了宽带雷达信号具有高分辨能力的直观解释,推导了频率步进雷达合成高分辨一维距离像的通用数学表达式。
First, the basic expression of high-resolution one dimensional range profile of the stepped frequency (SF) is deduced to explain the high resolution of the wideband signals.
该文模拟不同空间分辨率的遥感图像中混合像元造成的误分类情况,同时应用线性模型对混合像元进行了分解提纯,用以提高分辨率精度。
This article simulates misclassification because of mixed pixels on different spatial resolution images, then applies linear model to decompose mixed pixel, so as to improve classification accuracy.
得到任意视角及可变信噪比下的一维距离高分辨率像,并用线性内差神经网络进行识别,得到了满意的结果。
The HRR image at various look angles and ratios of signal to noise is recognized by Linear Interpolation Neural Network and the result is very satisfactory.
在光学区复杂目标RCS特征信号计算基础上,重点研究了空间目标宽带雷达特征信号包括高分辨一维距离像和二维isar图像仿真建模方法。
Based on the computation of complex targets RCS in optical region, methods of space objects wideband radar signature simulation, including HRR and ISAR image, are studied in this paper.
所设计的变焦距物镜适用于多种医用内窥镜图像显示系统,其像质可与高分辨率的CCD图像传感器匹配。
The designed zoom objective lens can be applied to various medical endoscope imaging systems with good image quality to match the high resolution of CCD image sensors.
在实际干涉成像中,可以选择适当的孔径间距来获得较好的干涉条纹,从而获得目标的高分辨率像。
Therefore, proper distance between the transmit apertures could be selected to get better interference fringes and high resolution images.
第二步是解码过程,对编码图像进行滤波和重建,以便获得高分辨率的可视目标像。
The second step is decoded process, in which the coded image is filtered and reconstructed in order to obtain a visible object image with high resolution.
文中首先分析了在高分辨雷达体制下获取稳定距离像的方法,并指出了传统匹配滤波方法的局限性。
The method of obtaining stabler range profiles is briefly discussed at first and then the limittedness of conventional matched filtering in case of HRR is pointed out.
简要地介绍了斑纹全息术的原理,报道了用斑纹全息术对两天文双星ads11344和ADS16648进行的高分辨率像复原观测结果。
The observation of high resolution image reconstruction with speckle holography for two astronomical double stars ADS11344 and ADS16648 was reported.
该方法采用少量FCPR信号子脉冲对目标频域响应进行采样,即可提取目标高分辨距离像信息。
Target frequency domain response is sampled with only a few FCPR sub-pulses, from which target high resolution range information is reconstructed exactly.
本文紧密结合“973项目”,研究高分辨一维距离像的雷达目标识别问题,提出了两种目标识别方法。
Tightly based on "Project 973", target recognition problems basing on High Resolution Radar Profile (HRRP) are discussed in the thesis, and two novel approaches of target recognition are proposed.
空间目标的高速运动会使得一维距离像产生畸变,因此高速运动补偿是空间目标高分辨雷达成像的关键步骤。
The high velocity of space targets will lead to aberration of range profile, so the correct compensation of high velocity is the key step for high resolution radar imaging.
基于对HRRP空间雷达自动目标识别中冗余噪声匹配的分析,研究了高分辨距离像的特征选择方法,提出了一种基于目标子空间的雷达自动目标识别方法。
This thesis studies the feature selection method of HRRP and proposes a RATR method in target subspace based on the analysis of noise-match in HRRP space.
标 签 毫米波高分辨雷达距离像双脉冲伸缩处理直接数字合成(DDS)。
MMW high resolution radar range profile two-step stretch processing method direct digital synthesis (DDS).
高分辨距离像(HRRP)是宽带雷达获取的目标散射点子回波沿雷达视线方向的投影矢量和。
High resolution range profile(HRRP) is the projection vector sum of target scattering point echoes acquired by wide-band radar along the direction of radar line-of-sight(LOS).
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