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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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matlab_optimization
《matlab实例》有关优化算法的实例源码，希望对大家有帮助。(" Matlab example" examples of the algorithm source code, we want to help.)
- 2010-05-19 19:44:08下载
- 积分：1
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StandardLMSwithColouredInputs
智能天线，自适应非盲算法LMS，Standard LMS with Coloured Inputs，matlab编写而成的源程序。格式限制，看好题目。后续期待。。(Smart antennas, adaptive non-blind algorithm LMS, Standard LMS with Coloured Inputs, matlab compiled the source. Format restrictions, promising subject. Follow-up look. .)
- 2010-05-12 01:27:30下载
- 积分：1
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Tiny-Lab---Matlab
Research Paper on TINY LAB based on MATLAB
- 2013-10-20 18:48:23下载
- 积分：1
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scene_text_extraction
基于matlab的软件设计，检测自然场景图片中的文本位置(failed to translate)
- 2013-05-02 23:29:24下载
- 积分：1
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scme20060830
在未来B3G/4G系统中所采用的SCME信道模型是SCM信道模型的扩展。扩展保持简便性和向后兼容性(In the future B3G/4 g system adopted by the SCME channel model is an extension of the SCM channel model. Extension keep ease and backward compatibility)
- 2014-02-25 16:24:38下载
- 积分：1
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ofdm-digital_predistorter
this matlab code presents a ofdm digital predistorter using lut method and a saleh model for the power amplifier
- 2014-02-14 15:36:35下载
- 积分：1
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matlab
上传的matlab课件，对初学matlab的人应该有很大的帮助，当初我就是看这个课件深入学习了解matlab的。(From the matlab courseware, matlab for beginners should be very helpful when I watch this courseware is to thoroughly study and understand the matlab.)
- 2008-05-31 20:31:48下载
- 积分：1
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MSC_Program
说明： 永磁同步电机性能模拟计算程序。通过输入已知的电机参数，得到气隙处的磁场强度并以此计算输出参数。(Permanent magnet synchronous motor performance simulation procedures. By entering the known motor parameters, the air-gap magnetic field strength Department and calculate the output parameters.)
- 2008-10-19 02:45:24下载
- 积分：1
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doamusic
关于智能天线的music算法的波达角估计(About the music of smart antenna algorithm of wave Angle estimate
)
- 2012-05-13 16:15:22下载
- 积分：1
