runge-kutta

应用多元高斯声束叠加方法建立粉末合金构件的声场模型(sound field simulation sound field simulation sound field simulation )

前向空间平滑MUSIC估计，即用前向空间平滑方法实现相干信号的DOA估计(Forward space smoothing MUSIC estimation, spatial smoothing method to achieve that with forward coherent signal DOA estimation)

该m文件是数字信号处理实验课上的实验2：离散时间傅里叶变换(The m-file is an experimental course on Digital Signal Processing Experiment 2: Discrete-time Fourier transform)

利用MATLAB实时处理GPS数据,：利用MATLAB软件环境，现场接收并实时处理海上地球物理调查过程中的GPS定位数据，剔除原始数据中的跳点，处理定位误差.(Real-time GPS data processing, using MATLAB: using the MATLAB software environment, the site receives and real-time processing GPS positioning in the process of Marine geophysical survey data, eliminating hops in the raw data, processing positioning error.)

Biometric Fingerprint, testing application

说明：  三维波束成形，MATLAB程序，直接运行(3D beamforming matlab)

说明：  matlab的噪声模型，在原有噪声模型的基础上作出了一些改进。(matlab noise model, noise model on the basis of the original made some improvements.)

matlab书籍，介绍了matlab中相关算法，程序设计等，适合初学者(matlab books, introduced matlab related algorithms, program design, suitable for beginners)

对经典协议LEACH的改进版本，可以出图3个，对初学很有帮助，大家有兴趣的可以看看。(LEACH agreement on an improved version of the classic, you can plot three, very helpful for beginners, we are interested can look at.)

说明：  针对低信噪比环境下基于能零比的端点检测方法准确率低的问题,提出了一种结合谱减法和短时零熵法的端点检测方法。首先通过功率谱减法对带噪语音进行降噪处理,然后结合短时平均过零率特征与谱熵特征,构造出一种新的语音参数,即短时零熵,最后运用双门限算法进行端点检测。实验结果表明该方法在复杂噪声环境下具有良好的端点检测性能,降低了检测的误判率。(To solve the problem of low accuracy of endpoint detection method based on energy zero ratio in low SNR environment, an endpoint detection method combining spectral subtraction and Short-term zero entropy method is proposed. Firstly, the noise is reduced by power spectrum subtraction, then a new speech parameter, short-time zero entropy, is constructed by combining the short-time average zero crossing rate and spectral entropy. Finally, the double threshold algorithm is used for endpoint detection. The experimental results show that this method has good performance of endpoint detection in complex noise environment, and reduces the rate of detection error.)