ferman

去斜率（strech）参考信号与回波信号混频后得到中频输出信号S(t)=Aexp(j*2*pi*f0*t+phase) 其中f0与回波延时的关系为： f0=k*delay_t K为线性调频斜率，delay_t为回波延时 将s(t)采样，FFT变换即可得到目标距离与频谱的关系。 Strech 信号测距 输入混频后的中频信号（图一），经采样及FFT变换得到频谱（图二） 再根据频谱与距离的关系式R=Tcf/2B显示出距离(图三) (Go slope (strech) obtained after the reference signal and the echo signal mixer IF output signal S (t) = Aexp (j* 2* pi* f0* t+phase) f0 and echo delay relationship: f0 = k* delay_t K chirp slope, delay_t the echo delay sampling s (t), the FFT transform to the target distance spectrum of relations. Strech signal ranging input mixer IF signal (Figure 1), sampling and FFT transform spectrum (Figure 2) according the the spectrum distance relationship R = Tcf/2B shows the distance (Figure 3))

:数字水印技术在数字产品的版权保护中起着非常重要的作用。概括了数字水印技术的现状及其基本原理,并 分析了变换域数字水印算法的优势,详细阐述了DCT 水印嵌入和提取算法的原理和步骤。最后在Matlab 平台下对DCT 数 字水印算法进行了仿真,仿真结果证实了DCT 算法的强健性和鲁棒性。(: digital watermarking technology in the digital copyright protection products played a very important role. Summarized the digital watermarking technology and the status of the basic principles and transform domain analysis of digital watermarking algorithm advantages, elaborate on the DCT watermark embedding and extraction algorithm theory and steps. Finally in Matlab platform for DCT digital watermarking algorithm for the simulation, Simulation results confirmed the DCT are strong and robust.)

Keeloq编解码例程包含解码编码源程序及应用笔记.rar(KEELOQ decoder codec routines contains source code and application notes. Rar)

3个RBF网络的matlab源程序，有训练和测试程序(3 RBF network matlab source, there are training and testing procedures)

多源信息融合方法及其实验数据，有需要的赶快下载！！(Multi source information fusion method and the experimental data, there is a need to quickly download!! )

数字信号处理之时域卷积matlab实现，非常简单。(Digital signal processing implementation of time-domain convolution matlab)

马尔科夫排队理论的一个关于阻塞率的仿真，非常给力(Markov queuing theory of a simulation on the blocking probability is very to the power)

segmetation program for car plates

信号相干时MUSIC算法与改进MUSIC的比较仿真源代码(Signal coherence between MUSIC algorithm and improved MUSIC simulation source code)

此文档介绍在matlab上识别和处理gps数据格式rinex的新方法，对于正在做这方面毕业设计的同学有帮助，也可成为研究者的参考(The document is introduced in the matlab recognition and processing GPS data format rinex new method, are doing this for the graduation design of the students having help, also can become the researchers reference )