systolic_arry

说明：  设计一个哈夫曼编码器 要求对一段数据序列进行哈夫曼编码，使得平均码长最短，输出各元素编码和编码后的数据序列。 ① 组成序列的元素是[0-9]这10个数字，每个数字其对应的4位二进制数表示。比如5对应0101，9对应1001。 ② 输入数据序列的长度为256。 ③ 先输出每个元素的编码，然后输出数据序列对应的哈夫曼编码序列。(Designing a Huffman Encoder Huffman coding is required for a data sequence to minimize the average code length and output the coded and coded data sequence of each element. (1) The elements that make up the sequence are the 10 digits [0-9], and each digit is represented by its corresponding 4-bit binary number. For example, 5 corresponds to 0101, 9 corresponds to 1001. (2) The length of the input data sequence is 256. (3) First output the encoding of each element, and then output the Huffman encoding sequence corresponding to the data sequence.)

根据软件无线电的思想，提出了一种新颖的数字信号处理算法，对QPSK信号的相位进行数字化处理，从而实现对QPSK信号的解调.该算法允许收发两端载波存在频差，用数字锁相实现收发端载波的同步，在频偏较大的情况下，估算频偏的大小，自适应设置环路的带宽，实现较短的捕获时间和较好的信噪性能。整个设计基于XILINX公司的ISE开发平台，并用Virtex-II系列FPGA实现。用FPGA实现调制解调器具有体积小、功耗低、集成度高、可软件升级、扰干扰能力强的特点，符合未来通信技术发展的方向。(According to the idea of software radio, a novel digital signal processing algorithm, the phase of QPSK digital signal processing, enabling the demodulation of QPSK signals. This algorithm allows the sending and receiving ends of the carrier frequency difference exists, using digital phase-locked to achieve synchronization of sending and receiving end of the carrier, in the case of large frequency offset, frequency offset estimation of the size, adaptive set the loop bandwidth to achieve shorter acquisition time and better noise performance. The whole design is based on the company XILINX ISE development platform, and Virtex-II series with the FPGA. FPGA realization of a modem with a small size, low power consumption, high integration, software upgrades available, the characteristics of strong interference interference, in line with the future direction of ICT development.)

单片机4路ad模数转换数码管动态显示程序(4-way ad microcontroller analog to digital conversion digital tube dynamic display program)

无线通信的MATLAB和FPGA实现，书籍，经典无线通信，代码可以实现(Wireless communication MATLAB and FPGA implementation, books, classic wireless communications, code can be achieved)

自适应滤波，对输入信号进行选择性的加权处理，使输出达到最优化，并且能够跟踪和适应系统和环境的动态变化(Least mean square，of the input signal processing, selective weighted output, and optimize can track and adapt to the dynamic changes of the system and environment)

最大最小值寻找程序，可以实现自动查找最大值与最小值(min_max_finder)

uart通信的Verilog实现,包含rx tx 以及testbench(Verilog implemention of UART telecommunicate)

在 verilog 代码中使用 FPGA 斯巴达 3E Ledbanner 显示 0-9 中 2 七段显示器。 它会从左去附和胜利或反之亦然。和当按重置按钮时将重置功能。

使用verilog写的32位浮点数加法模块、浮点数乘法模块、浮点数除法模块、浮点数指数模块。指数模块是综合前面三个例化成泰勒级数求指数，迭代次数（可设置）决定了精度。(Use verilog write 32-bit floating-point addition module, floating-point multiplication module, floating-point division module, the floating point number index module.Index module is a comprehensive index of the front three cases into Taylor series for calculating index, the number of iterations can be set to determine the precision)

说明：  Xilinx 公司Spartan-6系列FPGA实现LVDS，带Modelsim仿真文件，已综合。(Xilinx Spartan-6 Series FPGA implements LVDS with Modelsim simulation file, which has been synthesized.)