pem

实现希尔伯特-黄变换的功能，并带有一段测试数据。希尔伯特-黄变换是使用EMD分解将信号分解为本征模态函数（IMF），然后求得IMF分量的瞬时频率。其对于非稳态和非线性信号具有优良的效果。(The function plot_hht is a realization of the Hilbert-Huang transform (HHT). The HHT decomposes a signal into intrinsic mode functions (or IMFs), and obtain the instantaneous frequency data. It is designed to work well for data that are nonstationary and nonlinear.)

程序是对智能天线算法进行了简单的仿真！希望供大家参考，欢迎下载(procedures for smart antenna algorithm for the simulation of a simple! Hope for your reference, please download)

Spectral analysis of discrete deterministic signals

BCH(15,5,7)a communication system consists of binary source, 3 error-correcting BCH code of length 15 over GF(24) (i.e, BCH (15,5,7 code), the primitive polynomial is p(x)=1+x+x4), BPSK modulator, AWGN channel, coherent demodulator, decoder (either BMA or EA could be utilized to solve the error locator polynomial) and sink. Simulate and draw its error performance with and without BCH coding, together with the theoretical no-coding curve, i.e. two BER-EbNo curves.(a communication system consists of binary source, 3 error-correcting BCH code of length 15 over GF(24) (i.e, BCH (15,5,7 code), the primitive polynomial is p(x)=1+x+x4), BPSK modulator, AWGN channel, coherent demodulator, decoder (either BMA or EA could be utilized to solve the error locator polynomial) and sink. Simulate and draw its error performance with and without BCH coding, together with the theoretical no-coding curve, i.e. two BER-EbNo curves. )

文件是QAM调制的matlab程序。包含星座图以及误码率/信噪比图。(File is QAM modulation matlab program. Contains the constellation diagram and BER/SNR map.)

在matlab中，通过space carving实现三维重构(n the matlab, through space carving realize 3 d reconstruction)

针对激光器的锁模技术进行了matlab仿真，输出有锁模前后对比图，可以加深对锁模技术的了解，是学习激光原理不可多得的好资料。(For laser mode-locking technology has carried on the matlab simulation, the output is compared before and after the mode-locked figure, can deepen the understanding of the mode-locked technology, is the rare good learning principle of laser materials.)

GPS/INS位置组合输出校正Matlab仿真 s_GPS_INS_position_ demo.m 组合主文件 kalman_GPS_INS_position_ NFb.m 卡尔曼滤波程序 ode500.mat 飞机飞行轨迹与INS输出数据 将三个文件放到同一个文件夹中，运行主文件即可。 (GPS/INS Position Combination Output Correction Matlab Simulation S_GPS_INS_position_ demo.m Combines the master file Kalman_GPS_INS_position_ NFb.m Kalman filter procedures Ode500.mat aircraft flight path and INS output data Will be three files into the same folder, run the main file can be.)

这个程序是用于求解动态响应的一种积分方法，为常见的一种matlab程序。(This program is an integral method for solving dynamic response for a common matlab program.)

程序名称:gm1n.m GM(1,N)模型,程序功能:利用GM(1,N)模型进行预测。程序编写:mongvi@126.com。开发指导:刘思峰教授。程序发布:南京航空航天大学灰色系统研究所。(GM gm1n.m (1, N) model。Function: GM (1, N) model is used to forecast. )