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UWB-PPM
跳时超宽带信号的功率谱密度,正弦信号调制的模拟PPM信号。(UWB signal power spectral density, sinusoidal analog signal modulation PPM signal.)
- 2010-11-30 14:11:51下载
- 积分:1
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OFDM
OFDM,实际上OFDM是MCM Multi-CarrierModulation,多载波调制的一种。其主要思想是:将信道分成若干正交子信道,将高速数据信号转换成并行的低速子数据流,调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开,这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽,因此每个子信道上的可以看成平坦性衰落,从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分,信道均衡变得相对容易。在向B3G/4G演进的过程中,OFDM是关键的技术之一,可以结合分集,时空编码,干扰和信道间干扰抑制以及智能天线技术,最大限度的提高了系统性能。(OFDM)
- 2010-05-21 14:56:54下载
- 积分:1
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modulePparticlePfilter
这是用于目标跟踪的粒子滤波代码,
用matlab编写的,很有借鉴性,一维情况下,
非高斯非线性,其中将扩展卡尔曼滤波与粒子滤波进行比较,更好的说明了粒子滤波的优越性(This is a particle filter for target tracking code using matlab, referential nature, one-dimensional case, the non-Gaussian non-linear, which will be extended Kalman filter and particle filter to compare, a better description of the particle the superiority of the filter)
- 2012-08-16 16:15:35下载
- 积分:1
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guiting
非归零型差分相位调制信号建模与仿真分析 ,音频信号通过LM386放大,是国外的成品模型。( NRZ type differential phase modulation signal modeling and simulation analysis, LM386 audio signal amplification, Foreign model is finished.)
- 2016-11-13 18:27:11下载
- 积分:1
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EXAMPL_4
在基带传输系统中将加网孔均衡与不加网孔均衡的结果作对比(In the base-band transmission system will increase mesh is balanced and not the result of a balanced mesh for comparison)
- 2008-04-10 11:41:55下载
- 积分:1
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QPSK-OQPSK
对两种调相方法进行分析比较,通过MATLAB编程对比两种方式的区别与联系(Phase modulation of two methods of analysis and comparison, through MATLAB programming in two ways the difference between contrast and contact)
- 2008-04-23 22:16:59下载
- 积分:1
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matlab
matlab 模式识别算法和实现及其相关实验。(matlab pattern recognition algorithm and the realization of the experiment )
- 2009-05-23 12:39:08下载
- 积分:1
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EMALGORITHM
In statistics, an expectation-maximization (EM) algorithm is a method for finding maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent variables. EM is an iterative method which alternates between performing an expectation (E) step, which computes the expectation of the log-likelihood evaluated using the current estimate for the latent variables, and a maximization (M) step, which computes parameters maximizing the expected log-likelihood found on the E step. These parameter-estimates are then used to determine the distribution of the latent variables in the next E step.
- 2010-12-14 17:04:44下载
- 积分:1
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dianzidianlu
说明: 电子电路的重要材料 包括信号处理,模拟、数字电路等等(dianzi dianlu DSP,A/D,D/A)
- 2011-03-24 16:48:05下载
- 积分:1
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for-OFDM-text
说明: OFDM的实现流程 比较详细的输入和输出编解码(for OFDM process)
- 2011-04-12 15:24:11下载
- 积分:1