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说明：  用MATLAB编写的qpsk调制解调程序并且方针通过(MATLAB prepared using QPSK modulation and demodulation process and approach adopted by)

说明：  matlab的基础入门，对于MATLAB陌生的朋友是较好的教材(matlab based entry, for MATLAB is a good friend of unfamiliar material)

说明：  matlab中ga算法的一个小program，还是挺细致的。(ga in matlab algorithm for a small program, we welcome the added ah ~ ~ ~ ~)

Mathematic model of acoustic field for ultrasonic transducers according to "Ultrasonic beam structures in fluid media" paper

This implements Lie-derivative based complete observability analysis for relative localization using equabilent relative measurement model.

信号包络，提出信号包络，便于观察信号波动过程，非常有用(Signal envelope, put forward the signal envelope, easy to observe the process of signal fluctuations, very useful)

模拟退火算法的基本思想是从一给定解开始,从邻域中随机产生另一个解,接受Metropolis准则允许目标函数在有限范围内变坏,它由一控制参数t决定,其作用类似于物理过程中的温度T,对于控制参数的每一取值,算法持续进行“产生—判断—接受或舍去”的迭代过程,对应着固体在某一恒定温度下的趋于热平衡的过程,当控制参数逐渐减小并趋于0时,系统越来越趋于平衡态,最后系统状态对应于优化问题的全局最优解,该过程也称为冷却过程,由于固体退火必须缓慢降温,才能使固体在每一温度下都达到热平衡,最终趋于平衡状态,因此控制参数t经缓慢衰减,才能确保模拟退火算法最终优化问题的整体最优解。(Simulated annealing algorithm based on the idea that a given solution from the beginning, randomly generated from the adjacent domain to another solution, Metropolis acceptance criteria for the objective function to allow a limited range of deterioration, which is a control parameter t decided that its role is similar to the physical the course of the temperature T, the control parameters for each value, the algorithm continued to "have- to determine- to accept or rounding" of the iterative process, corresponding to a solid at a constant temperature of the process tends to thermal equilibrium, when control parameters and tended to decrease gradually 0:00, the system equilibrium state more and more, and finally the system state corresponds to the optimization problem of global optimal solution, the process is also known as the cooling process must be slow as a result of annealing temperature of solid to make solid temperature in each of them had attained thermal equilibrium, and ultim)

4-9-1的结构ga-lm的bp算法 有示例数值 不是拟合而是预测(4-9-1 structure of ga-lm bp algorithm is not fit but there are examples of numerical prediction)

宝典丛书的一本，很新的，matlab图像处理与界面编程的课后源程序。有很好的学习价值(A book series, it is new, matlab image processing and after-school programming source interface. Learning the value of good)

SAR的点目标仿真 两点目标的回波仿真 两点目标距离向压缩 两点目标距离向和方位向压缩(SAR point target simulation two goals echo simulation two target range compression points to the distance and azimuth compression)