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newViterbi217
基于IEEE802.11n标准,采用verilog语言设计的(2,1,7)卷积码viterbi译码器,支持1/2,2/3,3/4,5/6四种码率的译码,以测试无误(IEEE802.11n standard Verilog language design (2,1,7) convolutional code viterbi decoder support 1/2, 2/3, 3/4, 5/6 four bit rate decoding to test and correct)
- 2020-06-29 08:40:01下载
- 积分：1
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4X4keypad shake the module, the keys for false detection
4X4keypad的防抖动模块，用于假按键的检测-4X4keypad shake the module, the keys for false detection
- 2023-07-04 10:00:03下载
- 积分：1
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GBT-15946-2008GPIB
GBT 15946-2008 GPIB可编程仪器标准数字接口的高性能协议 概述 (GBT 15946-2008 GPIB Programmable Instruments standard digital interface for high-performance protocol Overview)
- 2012-08-30 11:49:29下载
- 积分：1
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FIR低
fir低通滤波器 用于dspbuilder pll：25ns data 400khz sin 10.8khz-fir low-pass filter for dspbuilder pll: 25ns data 400khz sin 10.8khz
- 2023-05-01 00:45:03下载
- 积分：1
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encoding-decoding
卷积码编码译码程序以及其modelsim仿真波形文件等(Convolutional code encoding and decoding procedures and the Modelsim simulation waveform file)
- 2020-12-27 20:59:03下载
- 积分：1
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061110061
在quartus平台下使用verilog语言编程实现简单的单流水线CPU，可以执行16条基本指令(Quartus platform in the verilog language programming using a simple single-line CPU, can perform 16 basic instructions)
- 2010-05-21 20:01:16下载
- 积分：1
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数控分频的一个工程
数控分频的一个工程---包括vhdl源程序和编译后产生的相关文件-CNC dividing frequency of a project- including VHDL source code and compile the relevant documents after
- 2022-05-22 23:30:57下载
- 积分：1
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squareLoop
利用平方环法提取同步载波的FPGA实现的仿真(FPGA implementation of synchronous carrier extraction using square loop method)
- 2021-01-11 17:18:49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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OQPSK
OPSK调制解调。代码思路很清晰，也很干净(Modulation demodulation OPSK. The code ideas very clear, and very clean)
- 2021-03-09 20:39:27下载
- 积分：1
