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compressedsensing_OMP
说明: 压缩感知 正交匹配追踪一些人关心压缩感知与雷达成像,他们把稀疏表示放在最重要的地方,以为在雷达成像中成功实现压缩感知关键是稀疏表示;
事实上并不是如此。我们知道:压缩感知需要建立AX=B,且该方法具有较低的抑制信噪比能力;另外雷达成像的基础是雷达
信号与目标的相互作用,也就是电磁波与介质的相互作用,该相互作用是一个非常复杂的非线性问题,因此研究这个问题与
压缩感知的关系才是解决雷达成像问题的关键点所在。从另外一个角度来看,雷达成像中惯用的方法是匹配滤波,它之所以
能够处理低信噪比的问题,是因为它利用了回波数据的冗余信息。也就是目前雷达成像算法之所以成功的关键是具有足够
多的冗余信息。现在,在雷达成像中使用压缩感知恰好是反其道而行之!
(compressed sensing)
- 2011-03-24 15:17:21下载
- 积分:1
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DPSO
Discrete Particle Swarm Optimization (DPSO)
Algorithm for Permutation Flowshop Scheduling to
Minimize Makespan
- 2015-01-06 23:28:04下载
- 积分:1
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Random
多种方法实现各(均匀分布,高斯分布,指数分布,瑞利分布等)分布的随机数产生(A variety of methods to realize the (uniform distribution, gaussian distribution, exponential distribution and Rayleigh distribution, etc.) of random number is generated)
- 2016-04-12 13:43:00下载
- 积分:1
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Fig.3
雪花状的光孤子在空间和时间中独立传播的MATLAB编程。(Snowflake-like soliton in space and time independent transmission MATLAB programming.)
- 2010-06-18 20:20:19下载
- 积分:1
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hypervi
此程序用于计算高光谱数据中地面光谱数据的各种植被指数(This program used to calculate the spectral data in a variety of ground spectral vegetation index)
- 2021-04-28 17:28:43下载
- 积分:1
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matlab numerical integral toolbox
matlab 数值积分工具包(Matlab numerical integration tool kit)
- 2005-01-17 17:41:27下载
- 积分:1
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laser-simulator
采用Fox-Li数值迭代法,对三种激光器腔镜类型下,激光从初始状态到稳定分布的这一过程进行了MATLAB建模仿真。分析了激光器结构参数的变化对光场稳定所需的迭代次数的影响。(Using Fox-Li numerical iterative method, the three types of laser mirrors, the laser from the initial state to the stable distribution of this process modeling and simulation of MATLAB. Analysis of changes in the structural parameters of the laser light field the number of iterations required to stabilize the impact.)
- 2013-10-05 22:22:59下载
- 积分:1
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Fractional_Delay_FIR
功能描述: 小数延迟FIR滤波器,对参考阵元信号signal_ref进行
length(tau) M次延迟,分别得到M个阵元的采样信号
关键问题: 若τ 1.2Ts,则Delay(i) 2,tau_valid(i) 0.2Ts
若τ 0.6Ts,则Delay(i) 1,tau_valid(i) -0.4Ts
当tau_valid(i)>0或<0时,从卷积后的数据y_FIR_delay中取值启示位置不同
函数能够实现输入任意延时tau,输出信号波形与理想波形之间误差很小。( Description: fractional delay FIR filter array element of a reference signal signal_ref performed length (tau) M delay times, respectively, to obtain a sample signal array element M key question: if τ 1.2Ts, then Delay (i ) 2, tau_valid (i) 0.2Ts if τ 0.6Ts, then Delay (i) 1, tau_valid (i) - 0.4Ts when tau_valid (i)> 0 or < 0, the volume data y_FIR_delay product after the Enlightenment values at different positions function can be realized enter any delay error between tau, the output signal waveform and the ideal waveform is small.)
- 2016-08-12 10:32:27下载
- 积分:1
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yanqan
是一种双隐层反向传播神经网络,图像的光流法计算的matlab程序,是路径规划的实用方法。( Is a two hidden layer back propagation neural network, Image optical flow calculation matlab program, Is a practical method of path planning.)
- 2016-11-14 11:04:48下载
- 积分:1
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prbs_bpsk
QPSK modulation using a prbs data input
- 2009-07-21 00:21:03下载
- 积分:1