invhalf

find min and max together

the design of the power system is described models and mathematical methods for static analysis of power systems are discussed.

说明：  此程序主要用于实现OFDM通信系统的同步，采用线性调频的方法可以克服信道的频率选择性衰落。(The programme is to realize synchronization in OFDM systems)

详细介绍了利用等纹波设计和凯泽窗法设计FIR滤波器的方法，并进行了仿真，并对纹波系数和衰减进行了比较(Details of the method of utilization ripple design and Kaiser window FIR filter design, and simulation, and the ripple factor and attenuation compared)

直接运行MAIN文件。对音频文件滤波，完成低通和高通滤波，并保存为WAV文件。(Run directly MAIN file. Filtering of the audio file to complete the low-pass and high-pass filter, and save it as WAV files.)

OFDM仿真包括信号源,卷积码编码，交织，qpsk调制，IFFT，组帧，上采样，通过FIR滤波器 通过高斯信道，再经过低通FIR滤波器，下采样，拆帧，FFT，qpsk解调，接收数据；计算误比特率(OFDM simulation including the signal source, sampling convolutional encoding, interleaving, QPSK modulation, IFFT, frame,, through the FIR filter through Gauss channel, and then through the low pass FIR filter, sampling, demolition of frame, FFT, QPSK demodulation, the received data bit error rate calculation)

说明：  名称:work111 大小: 9KB 完成时间:Wed Aug 17 16:30:23 2005 基于SIMULINK的模糊控制系统仿真程序 (name : work111 Size : File completion : Mon Aug 17 16:30:23 2005 Simulation of Fuzzy Control System Simulation Program)

卡尔曼滤波源代码 m文件 希望大家可以用上 另外我还有其他的程序(kalman filter)

数字信号处理中采样定理和卷积定理的验证，简单易懂的matlab源码，(Validation sampling theorem and convolution theorem of the digital signal processing in the matlab source code, easy to understand)

DTM dor digital terrain model for gis