硬件描述语言

十六进制计数器递增 ALTERA FPGA 板 7 段显示器上的每一秒。

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.)

this program performs multiplexing and demultiplexing

实现QPSK系统的调制解调仿真，基带成形滤波器采用升余弦滚降滤波器，将仿真的误码率与理论误码率作了比较(Implement QPSK modulation and demodulation simulation system, the baseband shaping filter using Raised Cosine filter will BER simulation were compared with the theoretical BER)

说明：  Verilog简易教程，或者说是讲义，清晰易懂，适合初学者入门使用(Layman' s Guide to Verilog, or a lecture, legible entry to use for beginners)

CPLD例程(语言)《Verilog HDL数字控制系统设计实例》AVR_Core.tar.gz-.rar(CPLDprogram dialogue /Verilog language design examples)

vhdl 计数器源程序，大家看看吧 vhdl 计数器源程序，大家看看吧-vhdl counter source, we see it vhdl counter source, we see it

说明：  Implementation of CORDIC atan block in VHDL

simple code based on verilog shifter , cla ,clg

实现4倍抽取的CIC抽取滤波器模块的Verilog实现，在对数据进行抽取之前，首先进行滤波(Extracted 4 times realize CIC decimation filter module Verilog realize that in the data collected before the first filter)