ALTERA NIOS处理器，用VHDL在QUARTUS下编写，用NIOS SHELL调试通过，实验LCD液晶显示...

说明：  环路滤波器是通信信号调制解调中最重要的一个部分，环路滤波器设计的好坏将直接影响到接收机的性能指标，二阶锁频辅助三阶锁相环路滤波器可以稳定跟踪具有加加速度的信号源，是现代通信中非常实用的技术，本文中详细编写了单载波信号产生模块、信道噪声模块、数字正交下变频模块、鉴频鉴相模块、环路滤波器模块，并包含了完整的testbench模块，对于初学者非常有用。(Loop filter is the most important part of communication signal modulation and demodulation. The design of loop filter will directly affect the performance index of receiver. The second-order frequency locking assisted third-order phase-locked loop filter can stably track the signal source with acceleration speed, which is a very practical technology in modern communication. In this paper, the single carrier signal generation module and channel noise are written in detail Sound module, digital orthogonal down conversion module, frequency and phase detection module, loop filter module, and contains a complete testbench module, which is very useful for beginners.)

用于FPGA的huffman算法的HDL编码，包括VHDL及Verilog代码。可用于JPEG及MPEG压缩算法。(The huffman algorithm for FPGA HDL coding, including VHDL and Verilog code. Can be used in JPEG and MPEG compression algorithms.)

数字时中（VHDL）-Numbers in (VHDL)! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

图像滤波中的中值滤波，有效滤除椒盐噪声，使用verilog语言编写(Image filtering in the median filter, effectively filter out salt and pepper noise, using verilog language)

说明：  Digital pre-distortion (DPD) is an advanced digital signal-processing technique that mitigates the effects of power amplifier (PA) nonlinearity in wireless transmitters. DPD plays a key role in providing efficient radio digital front-end (DFE) solutions for 3G/4G basestations and beyond. Modern FPGAs are a promising target platform for the implementation of flexible wireless DFE solutions, including DPD.

FPGA程序,使用Verilog语言生成1个脉冲可调的PPS脉冲信号。(FPGA program generates 1 PPS pulse signal, using Verilog language.)

对锁相环路的仿真，二阶环的仿真与分析都可以通过这个文件来到完成(Simulation of PLL, second-order loop simulation and analysis can be completed by the adoption of the document came)

FPGA驱动TCD1304AP线阵CCD，并经采集将数据通过串口传输至上位机(FPGA drives TCD1304AP linear CCD, and by collecting the data transmitted through the first bit machine serial)

基于FPGA的CPU核及其虚拟平台的设计与实现-FPGA-based CPU core and its virtual platform design and implementation of

伪随机序列发生器的vhdl算法 设计一个伪随机序列发生器，采用的生成多项式为1+X^3+X^7。要求具有一个RESET端和两个控制端来调整寄存器初值（程序中设定好四种非零初值可选）(m sequence vhdl)