scme20060830

discription of cdma modem coding

模式识别中的线性分类器的设计，包括感知机，最小二乘法和支撑矢量机的算法的MATLAB代码。(Pattern Recognition linear classifier design, including perception, least squares and support vector machine algorithm MATLAB code. )

A MATLAB based iterative threshold selection algorithm for cooperative sensing in a cognitive radio network.

这是一个混沌理论中重要的chen映射的程序。通过曲线很容易看到奇妙的混沌吸引子(Chaos Theory important Rezeption mapping procedures. Curve is easy to see wonderful chaotic attractor)

基于matlab图像处理技术的随书源代码(Based on matlab image processing technology with the book source code)

压缩感知matlab代码，在欠采样的条件下实现模数转换。在超宽带和频谱混叠的情况下亦可通过本软件仿真。具有较高的参考价值。(Conventional sub-Nyquist sampling methods for analog signals exploit prior information about the spectral support. A more challenging problem is spectrum-blind sub-Nyquist sampling of multiband signals. For example, cognitive radio receivers face with this kind of problem whenever sensing the RF spectrum at their surroundings. The modulated wideband converter (MWC) is the first system for sub-Nyquist sampling, which can be realized with existing devices and handle wideband analog signals.)

共散射点正演模拟，而且有P波和S波速度扫描和速度谱制作的程序。(Forward modeling of scattering centers, and a P-wave and S-wave velocity and velocity spectra produced by the scanning process.)

GPS Navigator overview

由于实际信道中的多径和阴影效应，单个认知用户频谱感知的性能受到影响，因此需要靠不同用户间的协同频谱感知来对抗多径和阴影效应。本设计要求在文中采用一种协作机制，即两用户进行协作频谱感知，提高主用户的检测率，减少检测时间，并且得到捷变增益。要求给出仿真结果。(As the actual channel of the multi-path and shadow effect, a single user of spectrum sensing of cognitive performance are affected, it needs to depend on collaboration between different users of spectrum sensing to combat multipath and shadow effects. The design requirements in the text using a cooperation mechanism, namely, two user collaborative spectrum sensing, to improve the detection rate of the primary users, reducing detection time, and get agility gain. Required to give simulation results.)

本程序用来计算空心铜绕线圈（磁体）在液氮温度下的电阻，需要线圈结构，尺寸，导线截面等数据(This procedure is used to calculate the hollow copper winding coils (magnets) at liquid nitrogen temperature resistance, the coil structure, size, conductor cross-section and other data)