Digital.Modulation.Techniques

摘　要 文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。 简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。 介绍JPEG基本原理：JPEG对灰度图像的压缩处理过程主要包括:图像分割,离散余弦变换(DCT),量化(Quantization),“Z”形排序(Zigzag Scan),差分脉冲编码调制(Differential Pulse Code Modulation,DPCM)对直流系数(DC),行程长度编码(Run-Length Encoding,RLE)对交流系数(AC),霍夫曼(Huffman)编码等。 JPEG标准的特点是离散余弦变换。 比较详细介绍压缩系统的构成和实现。实现提及步骤， JPEG压缩模块设计和编码模块实现细节。 (Abstract Article in the space monitoring system for the background, in-depth study of the JPEG image compression standard implementation methods and carried out based on FPGA implementation and optimization. In this paper, a detailed method of implementation and optimization of the process, testing showed that to achieve good results. Easy introduction of harmful static image compression has two kinds of comparisons that the current popular standard JPEG and JPEG2000. Illustrated by the reasons for JPEG compression method. JPEG introduce the basic principles: JPEG compression of gray-scale image processing include: image segmentation, discrete cosine transform (DCT), quantization (Quantization), "Z"-shaped sort (Zigzag Scan), differential pulse code modulation (Differential Pulse Code Modulation, DPCM) on the DC coefficient (DC), Run Length Encoding (Run-Length Encoding, RLE) of the exchange coefficient (AC), Hoffman (Huffman) coding. JPEG standard is characterized by discrete )

谐波分析 功率谱分析 交叉谱分析课程及例子(The harmonic analysis of power spectrum analysis courses and examples of the cross-spectral analysis)

聚类问题的matlab程序,聚类问题在图像处理中有着广泛的应用(Clustering problem matlab procedures, clustering problem in image processing has a broad application)

参数可控的分数阶傅里叶变换，可通过改变参数来进行傅里叶变换(Parameters controllable fractional Fourier transform, by changing the parameters to the Fourier transform)

简易一级倒立摆MATLAB仿真，做的很完整可以当课设直接使用(MATLAB simulation of a simple pendulum, doing very complete set can be directly used as lesson)

惯导系统初始对准的Matlab源代码，对于惯性导航系统的初始对准算法研究有帮助(INS initial alignment of the Matlab source code for inertial navigation system to help the initial alignment algorithm)

slm method for papr ofdm.10000,working.for d=2,3,N=512 256 1024.slm method for papr ofdm.10000,working.

kalman滤波程序 关于信息融合方面的程序 (kalman programme about information fusion s programme)

LMS algorithm similation.

说明：  Train speed/time moving wheel load