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说明：  indoor gps beta code

DSP28069的SPI，希望对大家有用(DSP28069 of SPI, we hope to be useful)

这是在MATLAB上GPS的仿真程序，对初学者很有帮助(This is the GPS in the MATLAB simulation procedure, very helpful for beginners)

产生余弦的四种相位竖条纹，做三维形貌测量用。(Cosine of zero-phase vertical stripes, three-dimensional shape measurement)

DSP programming, c language and matlab algorithms, recommend to everybody to learn

输入在某一平面中的点云数据构成的原始nx3矩阵，拟合出该平面(The original NX3 matrix formed by inputting point cloud data in a plane is fitted to the plane.)

下行导频信号寻找，从而找出真正的信号信息。(find the pilot)

在MATLAB上设计一个（2，1，3）卷积编码器和对应的采用维特比译码算法的译码器。编码器的生成多项式为：[1 0 1；1 1 1]。将编码器的输出经过一个高斯白噪声信道的结果作为译码器的输入，观察比较译码器输出和编码器输入，了解卷积码的容错性，并计算译码结果的误比特率.(A convolutional coder (2, 1, 3) and corresponding decoder using Vitby decoding algorithm are designed on MATLAB. The generating polynomial of encoder is: [1 01; 11 1]. The output of the encoder through a Gauss white noise channel as a result of the decoder input, compare the output of the decoder and encoder input, understand the fault tolerance of convolutional code, and calculate the decoding results of bit error rate.)

说明：  逆时偏移波场延拓 使用成像条件为互相关成像条件(Wave field extension of inverse time migration used to simulate wave field back propagation)

线性调频连续波的雷达测距测速的两次FFT(Linear frequency modulation continuous wave radar ranging and speed estimation by twice FFT.)