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quartus-mult
mult,在quartusII中，以模块输入形式，仿真乘法器mult，得到时序图和功能图(a simulation example of mult)
- 2012-10-17 14:22:11下载
- 积分：1
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VHDL-Code-For-Full-Adder-By-Data-Flow-Modelling
VHDL Code For Full Adder By Data Flow Modelling
- 2013-11-08 00:39:04下载
- 积分：1
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Dec_mul
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)
- 2013-12-26 18:00:24下载
- 积分：1
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乐曲播放器
用vhdl语言编写的程序，可以播放乐曲，有分频模块，可播放梁祝等歌曲。
- 2022-01-21 18:49:47下载
- 积分：1
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cordic
verilog编写的数字信号发生器NCO用CORDIC方法实现产生sin cos信号，流水线结构，简单实用。(verilog prepared by the digital signal generator NCO using CORDIC method implementation generate sin cos signal, pipelined architecture, simple and practical。)
- 2021-04-09 11:38:59下载
- 积分：1
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XilinxFpgaDesignAndTest
Xilinx fpga 设计培训中文教程,比较好的学习FPGA入门的教程(Xilinx fpga design training for Chinese curricula, better start learning FPGA Tutorial)
- 2020-08-13 15:58:30下载
- 积分：1
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I2C_CSDN
说明： verilog 编写的I2C程序，控制D/A的(I2C program written by Verilog to control D/A)
- 2020-06-18 21:20:02下载
- 积分：1
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基于VHDL的自动售货机实现,包含完整的源代码,锁脚文件以及下载文件
基于VHDL的自动售货机实现,包含完整的源代码,锁脚文件以及下载文件-VHDL-based vending machine realize that contains the complete source code, locking pin, as well as download files documents
- 2022-07-09 00:04:25下载
- 积分：1
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synthesis-bandstop-filters
本例介绍直接合成带阻滤波器的方法，n阶滤波器能实现n个传输零点(A direct synthesis technique of a new class of bandstop
coupled resonator elliptic filters is presented. Two different
coupling schemes, which both include source–load coupling are
used. The first coupling and routing scheme is the standard folded
structure used in implementing bandpass elliptic filters with
transmission zeros using resonators.)
- 2013-03-12 18:19:01下载
- 积分：1
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FPGA_trainning2013A
在EDA实验课上面，自己编写的NCO程序，可以产生出比较真实的正弦波、三角波以及锯齿波，用VHDL程序编写，有modelsim仿真textbench程序(On EDA experiment, oneself write the NCO program, can produce more real sine wave, triangular wave and sawtooth wave with VHDL programming, have the modelsim simulation textbench program
)
- 2013-07-16 15:05:28下载
- 积分：1
