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loop
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)
- 2008-12-17 23:00:35下载
- 积分：1
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flashZ
FPGA控制m25p16flash芯片读写控制spi协议
可实现擦除写入读出功能(SPI protocol for read and write control of m25p16 flash chip controlled by FPGA
Erase Write-Read Function)
- 2018-12-19 16:10:59下载
- 积分：1
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子字节的有效执行
应用背景此文件包括执行与数学计算的子字节。查找表和组合方法已被包括在内。关键技术Xilinx XC3S400 VHDL编程语言已经使用这些代码。
- 2023-05-26 21:50:03下载
- 积分：1
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tongbu
使用VERILOG开发时钟同步算法，能够从数据信号中提取时钟信息，(Clock synchronization algorithm using VERILOG developed to extract the clock from the data signal information,)
- 2020-11-11 12:39:44下载
- 积分：1
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USB 1.1 PHY code systemc language USB 1.1 PHY code, systemc languages, including...
USB 1.1 PHY的代码，systemc语言 USB 1.1 PHY的代码，systemc语言,包括基于systemc语言的testbench ，和相关的doc文档-USB 1.1 PHY code systemc language USB 1.1 PHY code, systemc languages, including systemc based testbench language, doc and related documents
- 2022-04-12 00:51:05下载
- 积分：1
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QPSK
说明： 基于FPGA的QPSK调制解调电路设计与实现 (QPSK)
- 2010-04-07 14:15:21下载
- 积分：1
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本代码可以用于产生正余弦信号波形，利用FPGA内部的ROM放置一个正余弦采样点的数据表格，通过循环取址的方法，实现波形连续输出。...
本代码可以用于产生正余弦信号波形，利用FPGA内部的ROM放置一个正余弦采样点的数据表格，通过循环取址的方法，实现波形连续输出。-This code can be used to generate positive cosine signal waveforms, using FPGA" s internal ROM to place a sampling point is the cosine of the data tables, the circulation method of taking the site to achieve a continuous output waveform.
- 2022-04-24 00:31:32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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prueba
Test for VHDL just a student version
- 2016-11-17 18:49:33下载
- 积分：1
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VHDL_APPOINTMENT TIME(Hẹn thời gian hiển thị LCD sử dụng ngôn ngữ VHDL)
VHDL_APPOINTMENT TIME(Hẹn thời gian hiển thị LCD sử dụng ngôn ngữ VHDL)
- 2022-01-25 18:25:54下载
- 积分：1
