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a_2D_fdtd
二微时域有限差分的matlab模拟
二微时域有限差分的matlab模拟(two- finite-difference time-domain simulation of the two-Matlab finite-difference time-domain simulation of Matlab)
- 2007-03-09 09:56:16下载
- 积分:1
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doc8003
Atmel抯 AVR controller offers an Analog to Digital Converter with 10-bit resolution.
In most cases 10-bit resolution is sufficient, but in some cases higher accuracy is
desired. Special signal processing techniques can be used to improve the
resolution of the measurement. By using a method called 慜versampling and
Decimation?higher resolution might be achieved, without using an external ADC.
This Application Note explains the method, and which conditions need to be
fulfilled to make this method work properly
- 2012-05-27 18:23:06下载
- 积分:1
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Cap06_Shadowing-and-Multipath
This file is the programs of (chapter 6) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related to shadowing and multupath. It helps you to simulate wireless channel.
- 2013-10-15 23:09:24下载
- 积分:1
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用Welch法进行功率谱估计
考虑L的三个不同值:L=256(3个数据段),L=128(7个数据段)和L=64(15个数据段)。各自的谱估计图如上图所示。可以明显的看到,加窗明显的减小了频谱上的假谱峰,但也更加进一步平滑了谱峰。所以,对于L=64的情况,在ω=0.8π的谱线可以很确定的辨认,但是那两个靠近的谱峰不容易区分。对于L=128的情况,这种情况提供了在分离和检测间最好的均衡。当然,对于在L=256时的情况,效果是更好的,能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外,还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等,在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)
- 2005-07-12 11:18:13下载
- 积分:1
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viterbi(b)
本人用matlab做的viterbi译码及编码程序,很详细,可供初学者使用(I use matlab to do viterbi decoding and encoding procedures is very detailed, for beginners)
- 2009-09-10 14:33:00下载
- 积分:1
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MATLAB
matlab程序设计教程,分为十四章含有各种信号及图像处理问题(matlab programming tutorial, divided into fourteen chapters contain a variety of signal and image processing problems)
- 2011-04-22 15:33:41下载
- 积分:1
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Binary-coding
二进制编码连续函数遗传算法二进制编码连续函数遗传算法二进制编码连续函数遗传算法(Binary coding genetic algorithm continuous functions)
- 2011-09-16 16:20:53下载
- 积分:1
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Microstrip_Antenna
微带天线在已知谐振频率下的结构尺寸计算,以及其3D辐射方向图的展示,还有E面H面的辐射图展示。学习微带天线的同学可以参考~(Size of the microstrip antenna in the calculation of the known resonance frequency, radiation pattern, and its 3D display, and H-plane radiation pattern in E-plane display. Students can learn microstrip antenna reference ~)
- 2014-09-22 10:01:42下载
- 积分:1
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LFM-filter
产生LFM信号-分析其频谱-运用频域匹配滤波器.m(LFM signal is generated- An analysis of the spectrum- the use of the frequency domain matched filter m.)
- 2014-01-09 19:44:02下载
- 积分:1
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yueshuyouhuayuanma
说明: 多个基于MATLAB约束最优化问题源码。程序具有通用性,供相关人员参考(Number of constrained optimization problems based on MATLAB source code. Process is universal, for future study)
- 2010-04-20 23:11:57下载
- 积分:1