Description: 对卡尔曼滤波原理进行了仿真！ 可用于雷达脉冲受随机噪声干扰后的原始数据最优估计。-The principle of the Kalman filter simulation! Can be used for radar pulse by the random noise of the original data after the optimal estimation. Platform: |
Size: 3072 |
Author:song |
Hits:
Description: 一种新型噪声雷达--随机二相编码连续波雷达--A new kind of noise radar-random binary phase coded CW radar-A new type of noise radar- random two-phase coded CW radar- A new kind of noise radar-random binary phase coded CW radar Platform: |
Size: 475136 |
Author:佳 |
Hits:
Description: 针对合成孔径雷达(SAR) 图像含有大量斑点噪声的特点,基于Contourlet 的多尺度、局部化、方向性和各向
异性等优点,并结合隐马尔科夫树( HMT) 模型和隐马尔科夫场(MRF) ,提出了一种基于Contourlet 域持续性和聚
集性的SAR 图像模糊融合分割算法。该算法有效捕获了Contourlet 子带的持续性和聚集性,并分别用HMT 和
MRF 来刻画,再依据模糊测度,将多尺度HMT 和MRF 有机融合,建立Contourlet 域HMT2MRF 融合模型,并导
出新模型下的最大后验概率(MAP) 分割公式。对实测SAR 图像进行了仿真,仿真结果和分析表明:与小波域上的
HMT2MRF 融合分割及Contourlet 域上HMT 和MRF 分割算法相比,该算法在抑制斑点噪声的同时,有效地提高
了SAR 图像的分割精度- In view of the speckle noise in the synthetic aperture radar (SAR) images , and based on the Contourlet′s
advantages of multiscale , localization , directionality , and anisot ropy , a new SAR image fusion segmentation
algorithm based on the pe rsis tence and clustering in the Contourlet domain is p roposed. The algorithm captures the
pe rsis tence and clus tering of the Contourlet t ransform , which is modeled by hidden Markov t ree (HMT) and Markov
random field (MRF) , respectively. Then , these two models are fused by fuzzy logic , resulting in a Contourlet
domain HMT2MRF fusion model . Finally , the maximum a poste rior (MAP) segmentation equation for the new fusion
model is deduced. The algorithm is used to emulate the real SAR images . Simulation results and analysis indicate that
the p roposed algorithm effectively reduces the influence of multiplicative speckle noise , imp roves the segmentation
accuracy and p rovides a bet te r visual quality for SAR images ove r the Platform: |
Size: 897024 |
Author:周二牛 |
Hits:
Description: 检测估计和调制理论
迄今为止，本书仍然是公认的关于检测、参数估计和线性与非线性调制波形估计方面的一本论述详尽、深入、成功的著作。也是一本较好的研究生教材。内容是研究发生在通信、雷达和声呐中被噪声污染了的各种线性与非线性调制、随机与非随机波形的最佳处理的数学方法和物理结构，各种系统可能达到的性能极限和影响它的各种因素。全书包括导论、经典检测和估计理论、随机过程的描述、信号检测与信号参数估计、连续波估计、线性估计和讨论等7章。每章附有相当数量的扩大内容范围的习题。-Detection Estimation and Modulation Theory
So far, the book is still recognized on the detection, parameter estimation and estimation of linear and nonlinear modulation waveform s a detailed discussion, thorough and successful work. Is also a good post-graduate teaching. Content is research in communications, radar and sonar noise pollution has been a variety of linear and nonlinear modulated, random and non-random waveforms of the best methods of dealing with the mathematical and physical structure of the performance of the various systems may reach the limit and the various factors affecting it. The book includes introduction, classical detection and estimation theory, stochastic process description, signal detection and signal parameter estimation, continuous-wave estimation, linear estimation and discussion of Chapter 7. Each chapter is accompanied by a considerable number of exercises the expansion of content areas. Platform: |
Size: 24066048 |
Author:houhj |
Hits:
Description: ：针对正交编码信号已有设计方法计算复杂、编码长度和数量受限等问题，该文利用混沌序列类随机、初值
敏感， 易产生和易使用的特点， 提出应用混沌序列设计随机离散频率编码信号。 在给出编码信号设计方案的基础上，
详细推导此类信号的模糊函数，分析了其距离、多普勒分辨能力，讨论了信号的准正交特性，并比较了不同混沌序
列对信号性能的影响。 理论分析和仿真实验表明， 结合混沌序列的频率编码信号具有优良的模糊函数、 准正交性能，
且信号产生容易，编码长度和数量可以任意设置，可以作为一类有潜力的雷达信号使用- For deficiencies of existing design methods of orthogonal coded signals such as notably computational
complexity, limited coding length and limited signal number, a kind of random discrete frequency coding signal
based on chaotic series is proposed in this paper, considering the attracting characteristics of chaotic series such as
noise like behavior, initial value sensitiveness and easy for generation and use. The time-Doppler ambiguity
function of the designed signal is induced in detail, the range and Doppler resolution are analyzed, and the
pseudo-orthogonal property is discussed in this paper based on the signal coding model. Signal performances are
compared with different chaotic series. The proposed signals present quite good performances in ambiguity
function, pseudo-orthogonal property, easy generation and unlimited coding length and large signals’ number, and
can be applied as a kind of promising radar signals. Platform: |
Size: 844800 |
Author:赵俊杰 |
Hits:
Description: Random noise Synthetic Aperture Radar simulation of point target where the transitted signal is Gaussian Platform: |
Size: 2048 |
Author:ghazal |
Hits:
Description: Synthetic Aperture Radar Simulation extended target as the shape of tank using four different types of Signals
LFM Signal
Conventional OFDM
CP-based OFDM
Random Noise Signal Platform: |
Size: 4096 |
Author:ghazal |
Hits:
Search - Random Noise Radar