fmincon

说明：  根据语音信号的特点给出有关滤波器的性能指标：1）低通滤波器性能指标，fp=1000Hz，fc=1200 Hz， As=100dB，Ap=1dB；2）高通滤波器性能指标，fc=2800 Hz，fp=3000 Hz As=100dB，Ap=1dB；3）带通滤波器性能指标，fp1=1200 Hz，fp2=3000 Hz，fc1=1000 Hz，fc2=3200 Hz，As=100dB，Ap=1dB。用IIR对其分析，最后，利用MATLAB中的函数freqz画出各滤波器的频率响应。(This article according to the IIR filter and the FIR filter characteristic, uses the bilinearity method of transformation under the MATLAB bad boundary to design IIR and to design the FIR numeral filter separately with the window box number, and carries on the analysis to the gathering pronunciation signal, and finally gives IIR and FIR to the pronunciation filter effect.)

数字调制技术的发展日新月异现如今信息技术不断的推陈出新，信息的传输及通信起着支撑作用。而对于信息的传输，数字通信已经成为重要的手段。因此，数字信号的调制就显得非常重要。数字调制是通信系统中最为重要的环节之一，而实现数字调制需要的方法就需要用键控法来实现，比如可以对载波的振幅、频率和相位进行键控。(ASK , FSK , PSK modulation and demodulation of the simulation comparison )

这是用matlab编写人脸检测软件，是用的adaboost算法，参考价值还是很高的(This is a face detection using matlab software adaboost algorithm is used, the reference value is still high)

模式识别，源程序。Ada_Boost.m文件。希望能有用，经调试可用。(Pattern recognition, source. Ada_Boost.m file. Hoping to be useful, debugging is available.)

Duda经典教材《Pattern Classification》的全部源码(The source code of Duda s book 《Pattern Classification》)

信号信噪比计算，验证对比了matlab中的多种信噪比计算方法(compare the calculation of SNR )

电磁波电场强度的取向和幅值随时间而变化的性质，在光学中称为偏振。如果这种变化具有确定的规律，就称电磁波为极化电磁波（简称极化波）。如果极化电磁波的电场强度始终在垂直于传播方向的（横）平面内取向，其电场矢量的端点沿一闭合轨迹移动，则这一极化电磁波称为平面极化波。电场的矢端轨迹称为极化曲线，并按极化曲线的形状对极化波命名。因此如果E的失端轨迹是圆，则此电磁波称为圆极化波。(The properties of the orientation and amplitude of the electric field intensity of electromagnetic waves vary with time, which are called polarization in optics. If this change has a definite law, the electromagnetic wave is called polarization electromagnetic wave (called polarization wave). If the electric field intensity of the polarized electromagnetic wave always orientations in the plane perpendicular to the propagation direction, the terminal point of its electric field moves along a closed path. Then the polarized electromagnetic wave is called the plane polarized wave. The vector end track of the electric field is called the polarization curve and is named for the polarized wave according to the shape of the polarization curve. Therefore, if the lost track of E is a circle, the electromagnetic wave is called a circular polarization wave.)

利用matlab实现的无线传感器网络分布的Pd和Pfa的关系图，无线传感器网络分布直接影响最后的融合结果，通过分析获得Pd和Pfa的关系可以对理解有帮助。(The use of matlab wireless sensor networks to achieve the distribution of the relationship between the Pd and Pfa map the distribution of wireless sensor networks a direct impact on the final integration of the results obtained by analyzing the relationship between the Pd and Pfa can be helpful in understanding.)

BTC的基本方法，并且编程实现，显示、观察编码后的图像，分析比较压缩性能。(the basic methods and programming, show that the observed image coding, compression performance analysis and comparison.)

复杂捷联惯导的另一种解算方法，包括解算位置、速率与姿态(Complex SINS another solution method, including calculating position, velocity and attitude)