altera de2 sd 卡源程序。调试成功的

golomb编码，用于无损图像压缩等，基于quartusii平台。-golomb coding for lossless image compression, based on the platform quartusii.

说明：  mojo v3 complete eagle schematic

加法计数器的VHDL工程，程序，仿真图形-adder jishuqi de VHDL FANGZHEN ,CHENGXU

LCD例程 altera官方Verilog代码 详尽简单实用-LCD routines altera official Verilog code is simple and practical details

fsk调制与解调，此程序经过验证，可以运用，通讯方面的同学可以用-FSK modulation and demodulation, this procedure has been verified and can use communications students can use

verilog编写的RTC（实时时钟）包含APB总线接口、时钟计时部分等(verilog prepared by the RTC (real time clock) contains APB bus interface, clock time some other)

实现两路数字信号的鉴相功能，最后通过静态LED显示出来，该程序通过硬件的测试-Realize two-way digital signal phase function, and finally through a static LED display, the program through the hardware test

说明：  本文设计了基于FPGA的，用verilog HDL语言描述的在伽罗华域GF（ ）上的RS（6,4）编码器。在ISE软件上用verilog HDL语言分别对每个模块进行描述，然后在软件上进行编译、仿真，最终实现RS（6,4）编码，下载之后用chipscope采集数据，分析符合仿真结果，达到设计的要求。(This paper is designed based on FPGA, described by Verilog HDL language in Galois field GF () on RS (6,4) encoder. Using the ISE software Verilog HDL language for each module is described, and then compile, simulation in software, the ultimate realization of the RS (6,4) encoding, after downloading by chipscope data acquisition, the analysis with the simulation results meet the design requirements.)

一种压缩感知信号恢复算法，针对贪婪迭代类算法中的正交匹配追踪（OMP)算法的改进。OMP在每次迭代过程中选择出的原子并不是最优的，无法使本轮迭代中残差的减少最大化。本例程实现了改进的最优OMP算法，即Optimised_OMP，保证每次迭代选出的原子与已选出的原子序列所构成的平面正交，因而可以使残差下降的更快，从而加速算法收敛。(A compressed sensing signal recovery algorithms track (OMP) algorithm and orthogonal matching algorithm greedy iterative class. The OMP selected atoms in each iteration of the process is not optimal, not be able to maximize the reduction of the residual in the current round of iteration. The routines to achieve the optimal OMP algorithm improvements that Optimised_OMP, to ensure that each iteration selected atoms with atomic sequence elected a plane orthogonal, and thus can make the residuals have declined even faster, thus speeding up the algorithm convergence.)

DDS中的正余弦生成，初始相位相差90度，可自行改变输出频率(Cosine generation of DDS, the initial phase difference of 90 degrees, the output frequency can be changed on their own)