SPIHTsuanfashixian

matlab的函数名大全，方便查找，适合学习，收集了很久才收集全(Fingers matlab function to facilitate the search for learning, gathering for a long time to collect all)

车牌号码识别检测程序，能快速有效检测车辆号码(License plate number recognition testing procedures, fast and effective detection of vehicle numbers)

in this code i have implemented the algorithm to find the minimum sampling frequency bandpasss sampling used in Software defined radio

关于IQ解调的一些matlab例程，觉得很好，对初学者很有帮助，就分享了。(About IQ demodulation some matlab routine, I feel very good, very helpful for beginners, it is shared.)

扩频通信系统仿真 ——系统将基带信号（即信息）的频谱扩展至很宽的频带上，然后再进行传输，即将欲传输的信息数据用伪随机序列编码调制，实现频谱扩展，然后通过信道编码发送出去；接收端采用与发送端完全相同的伪随机序列作为本地解扩信号进行相关处理，以恢复信息，最后进行解调，完成整个系统的接收。(Simulation of spread spectrum communication system- the system baseband signal (ie, information) be extended to a wide spectrum of frequency bands, and then transferred, will want to use transmitted information data sequence of pseudo-random code modulation, to achieve expansion of the spectrum, and then sent channel coding receiver and transmitter use the same pseudo-random sequence as related to the local despreading signal processing, in order to restore the information, the final demodulation, the receiver to complete the system.)

this is matlab code for perceptron

EMD algorithm..used in speech processing, breaks trhe signal upto fundamental levels

说明：  一种改进的局部线性嵌入算法，性能比传统的要好(An improved local linear embedding algorithm with better performance than the traditional LLE algorithm)

均匀平面阵方向图，m*n元，波束指向phi=0°，theta=90°(Uniform plane array pattern, m* n element, the beam points to phi = 0 °, theta = 90 °)

说明：  This program do bitplane slicing to embed watermark binary image in the least significant plane.Watermark is recovered even in presence of noise