GPS L1信号的仿真及信号的捕获L1acq-reciever

说明：  利用SVM对仿真的飞行数据进行训练和预测。(SVM is used to train and predict the simulated flight data)

主要包含Zigbee的物理层仿真源码，实现Zigbee的物理层协议(a matlab source for Zigbee)

在Matlab环境下用于计算CRC16的代码，本原多项式为X16+X15+X2+1，并提供测试文件。(In the Matlab environment for the calculation of CRC16 code, the primitive polynomial is X16+X15+X2+1, and provide the test file.)

说明：  运用matlab实现8PSK信号的调制与解调(relization of modulation and demodulation of 8PSK signal by Matlab)

说明：  bp神经网络按照误差逆向传播算法训练的多前馈神经网络(BP neural network multi feedforward neural network trained by error back propagation algorithm)

共振解调技术是经过包络分析将淹没在背景噪声中的微弱信号提取出来，然后输出一个消除了振动信号干扰的信号，接着对该信号进行频谱分析，并且通过利用滚动轴承的故障特征频率进行分析，共振解调法是目前应用于实际的常用方法。(The resonance demodulation technique is to extract the faint signal submerged in the background noise by envelope analysis, and then output a signal that eliminates the interference of the vibration signal. Then the signal is analyzed and analyzed by the frequency of the fault characteristic of the rolling bearing. The resonance demodulation method is applied to the actual situation at present. The commonly used methods.)

说明：  图像曝光矫正代码， 用于图像恢复纹理， 参考文献见文件夹中的内容(Image exposure correction code Used for image restoration texture See the contents of the folder for references)

本人收集的关于GPS经纬度到直线距离结算公式，求GPS两点夹角以及轴向角的数学理论及示意图。(I collect GPS latitude and longitude to the straight-line distance on the settlement formula, find the angle between the GPS points and the axial angle and schematic diagram of the mathematical theory.)

研究考虑多普勒频移fd情况的LFM调频目标回波特性(Study considers the case of Doppler shift fd target echo characteristics LFM FM)

gps解析+nokia5110显示,GPRMC,GPGAA(gps resolve+nokia5110 display, GPRMC, GPGAA)