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实验代码
由于卫星与用户接收机二者的连线方向上存在相对运动，因此引起了载波和伪码的多普勒效应，再加上接收机晶体震荡频率漂移和卫星时钟频漂等原因。接收机实际接收到的卫星载波中心频率一般不再等于信号被发射时的标称频率，这就需要接收机在载波频率一维对信号进行搜索。同时，由于卫星到接收机的距离时刻变化，加上接收机始终相对于GPS时间的偏差又并不固定，因而接收信号的伪码相位值也在改变，所以接收机也要在码相位一维对信号进行搜索。扩频信号的捕获是一个对目标信号频率域和相位域进行的二维搜索过程。(Because of the relative motion between the two of the satellite and the user receiver, the Doppler effect of the carrier and pseudo-code is caused, and the frequency drift of the oscillation of the receiver crystal and the frequency drift of the satellite clock are added. The frequency of the satellite carrier center that the receiver actually receives is generally no longer equal to the nominal frequency of the signal being transmitted, which requires the receiver to search the signal in one dimension of the carrier frequency. At the same time, because the distance between the satellite to the receiver is changed, the deviation of the receiver always relative to the GPS time is not fixed, so the pseudo code phase value of the received signal is also changing, so the receiver also searches for the signal in the code phase. The acquisition of spread spectrum signal is a two-dimensional search process for the frequency domain and phase domain of the target signal)
- 2018-06-27 08:59:05下载
- 积分：1
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oam
说明： 采用MATLAB语言生成的oam信号，可用于波动光学研究(OAM signal generated by MATLAB)
- 2020-10-28 17:09:58下载
- 积分：1
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卡尔曼滤波更新方程在本代码中实现
kalman filter update equations implemented in this code
- 2022-01-22 14:27:03下载
- 积分：1
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我编写的鱼眼校正算法完整程序
鲁棒性好，性能优越，能量熵的计算，旋转机械二维全息谱计算，利用matlab GUI实现的串口编程例子，主要是基于mtlab的程序，阵列信号处理的高分辨率估计。
- 2022-04-15 20:36:46下载
- 积分：1
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som_network
基于SOM神经网络的基金业绩分类评价，内含PPT(SOM neural network based classification of fund performance evaluation, containing PPT)
- 2010-12-29 13:07:57下载
- 积分：1
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project4
Machine learning. Overfit measure algorithm source code in MATLAB.
- 2015-04-08 11:23:11下载
- 积分：1
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FastMatrixInversionAlgorithm
矩阵快速求逆算法，算法比较简单，使用效果比较明显(Fast matrix inversion algorithm)
- 2010-10-24 11:05:56下载
- 积分：1
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find_LUT_power_ranges
基于LUT的数字预失真MATLAB代码 (LUT digital predistortion)
- 2009-06-27 16:46:36下载
- 积分：1
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函数
基于matlab的指纹识别源码 包括预处理、特征点提取和特征点匹配(Fingerprint recognition source code based on MATLAB includes preprocessing, feature extraction and feature matching)
- 2019-04-29 19:39:21下载
- 积分：1
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autosc
Auto-scales data table Z (new operation or based on know parameters),
or reverses auto-scaling operation.
- 2011-07-22 18:45:44下载
- 积分：1
