FIR滤波器的基本Verilog代码实现

时间同步后即可确定每帧数据的起始位置，这样就能完整的截取下每一帧。但是，数据中还带有频偏信息。在常规的通信系统中，多普勒很小仅仅会带来很小的频偏，但是在大多普勒的情况下，频偏将非常大，20马赫的速度将会带来将近34K的频偏。因此，如何很好的纠正频偏即为本系统的难点。 OFDM中，我们将大于子载波间隔倍数的频偏称为整数倍频偏，而将小于一个子载波间隔的频偏称为小数倍频偏。频偏矫正精度只要能保证小于十分之一倍的子载波间隔，频偏就不会对均衡和解调造成影响。本文中我们借鉴这种思想，由于硬件资源限制，我们将在接收端做64点FFT，即相当于将频域划分为64份，我们将小于 的频偏称为小数倍频偏，将 整数倍的频偏称为整数倍频偏。本程序即基于SCHIMDL经典方法完成小数倍频偏纠正(After time synchronization can determine the starting position of each frame data, so you can complete the interception of each frame. However, in the data with frequency information. In conventional communication systems, doppler small will bring only small deviation, but in the case of most of the doppler, frequency PianJiang is very large, 20 Mach speed will lead to deviation of nearly 34 k. Therefore, how to good to correct deviation is the difficulty of this system. OFDM, we will be bigger than the sub-carrier spacing ratio of frequency deviation is called the integer frequency offset, and the interval will be less than a child carrier frequency offset is called decimal frequency doubling. Deviation is less than one over ten times as long as can guarantee accuracy of sub-carrier spacing, deviation will not affect balance and demodulation. This article, we draw lessons from the idea, due to the limited hardware resources, we will do 64 points FFT at the receiving end, which is equ)

Xilinx CPLD源代码，使用XC9500系列CPLD,驱动液晶-Xilinx CPLD source code, use the XC9500 series CPLD, LCD Driver

CPLD实用设计50例，非常经典的CPLD设计，包含50个实际的典型应用，涉及直流电机PWM驱动，编码等内容，有了这50例，举一反三，就会了很多应用-50 cases of practical CPLD design, very classic CPLD design, including 50 typical practical applications, involving PWM DC motor driver, coding, etc., with these 50 cases, giving top priority will be a lot of applications

40M时钟输入经过iserdes倍频到960M(input 40M o clock and output 960M )

verilog实现的1024位的大数模逆算法，引入RAM作为数据通道-verilog to achieve the 1024 Modular inverse algorithms, the introduction of RAM as a data channel

max plus的入门与应用，适合初学者对max plus ii有一个感性的认识(max plus entry and applications, suitable for beginners to the max plus ii have a perceptual awareness of)

全部通过，是我的精心设计，完全满足初学者的要求。-all passed, I was carefully designed, fully meet the requirements of beginners.

本代码实现了 ； ；CORDIC  ； 算法语言；

说明：  LTE is an abbreviation for Long Term Evolution.

fpga平台实现srio通信，以及srio端口寄存器设计。(FPGA platform to achieve sRIO communication, as well as sRIO port register design.)