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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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aided_ins_15_state
GPS/INS组合导航Matlab仿真程序(GPS/INS integrated navigation Matlab simulation program)
- 2008-08-07 21:41:32下载
- 积分：1
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bp-sin-trainer
BackPropagation, implemented by matlab, for those who are new in neural networks
- 2013-12-29 20:18:52下载
- 积分：1
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task3_xingxin
形心法测距测速，给出了在没有噪声和有噪声两种情况下用形心法测出的数据，还有关键图形(Loading range speed, without noise and noise are given in both cases using fractal method to measure the data, and key graphics)
- 2020-07-15 14:38:50下载
- 积分：1
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98Bzaiqingxunshi
数学建模1998年B题，有关灾情巡视的Matlab程序，是图论方面的问题(B 1998, issue of mathematical modeling, the disaster visited the Matlab program, is graph theory problems)
- 2011-02-10 11:30:48下载
- 积分：1
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budengbanjinfangzhendaima
不等半径泊车方法仿真代码，实现不等半径泊车算法的仿真，车辆参数如车长、车宽、转弯半径以及车位参数如长度、宽度均可调。(Simulation code radius ranging from parking way to achieve a radius ranging from parking the simulation algorithm, vehicle parameters such as vehicle length, vehicle width, turning radius and parking parameters such as length, width can be adjusted.)
- 2021-03-25 15:39:14下载
- 积分：1
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costas
matlab产生cstas码调频信号，同时进行了检测
matlab产生cstas码调频信号，同时进行了检测 (matlab generated cstas code FM signal detection matlab FM signal generated cstas code, were tested at the same time)
- 2021-03-17 21:19:21下载
- 积分：1
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GLMetaseq.h
让ARToolKit支持MQO模型的必须头文件，GLMetaseq.h(Let ARToolKit support MQO model must header files, GLMetaseq.h)
- 2014-02-09 23:10:11下载
- 积分：1
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16QAM_BER
Quadrature Amplitude Modulation :QAM 16
simulation study
- 2010-06-25 06:35:07下载
- 积分：1
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MatlabDesignFilter
matlab设计模拟带通滤波器
matlab设计模拟带通滤波器
matlab设计模拟带通滤波器(using matlab to design a alogo band pass filter.
using matlab to design a alogo band pass filter.
using matlab to design a alogo band pass filter)
- 2009-04-08 19:20:34下载
- 积分：1
