-
powerp
关于功率谱估计的,周期图法,自相关法,bartlett法和welch法,还有一个复倒谱估计的代码(On the power spectrum estimation, periodogram, since the relevant law, bartlett law and Welch law, there is a Complex Cepstrum estimated code)
- 2007-12-31 23:33:18下载
- 积分：1
-
dtftoapprox
this code will help you to Compute a discrete-time transfer function to approximate a distributed LPF
- 2010-09-29 15:55:47下载
- 积分：1
-
yssy
北京理工大学理学院物理系大学物理演示实验的结果和过程(Beijing University of Technology Department of Physics, Physics Institute of the results and the process of demonstration experiments)
- 2010-03-12 14:59:52下载
- 积分：1
-
4PSK
说明： 在matlab上实现4PSK信号的调制和解调算法，并对结果进行仿真。(In the matlab achieve 4PSK signal modulation and demodulation algorithms, and simulation results.)
- 2010-03-19 16:23:47下载
- 积分：1
-
bandfilter
说明： 带通滤波器的设计，完成多功能滤波器的比较及主旁瓣分析和扩展效应(filter)
- 2010-04-13 09:48:49下载
- 积分：1
-
netcdf_api
matlab 要netcdf格式的数据操作，必须安装此插件，里面有详细的安装信息(matlab data to netcdf format operation, you must install this plug-in, which has detailed installation information)
- 2010-05-21 17:06:39下载
- 积分：1
-
response
多自由度体系在地震作用下的结构响应，用的是NEWMARK-BETA法(Structural Response of a Multi Degree of Freedom System under Earthquake)
- 2020-10-20 10:07:24下载
- 积分：1
-
Radial-neural-network
可用来预测股票走势的matlab程序，先要输入数据（可更换），再进行预测，属于径向基神经网络的编码。(Used to predict the stock trend matlab program, need to input data (replaceable), and then to predict, belonging to the encoding of radial basis function neural network.)
- 2012-04-24 18:36:05下载
- 积分：1
-
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
-
ErrFun
说明： 求误差函数的值（算法借鉴MATLAB中erf函数）(According the erf function in matlab program, get the value of ERROR function.)
- 2009-08-31 02:09:15下载
- 积分：1
