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4
说明： ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2
种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本
思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列
的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods
。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency
ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits．
Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix—
based algorithm has less complexity and less precision。and that the training sequence—based algorithm
has better estimation performance at the cost of transmission efficiency．)
- 2010-05-18 18:34:44下载
- 积分：1
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CSE3213_13_RandomAccess_2_F2010.pdf
csma tutorial for begginers with graphics explantaion
- 2017-10-10 09:00:09下载
- 积分：1
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MANUAL-JTAG-OPENBOX
doccument pdf sur le jtag du la openbox 800 avec shema et jkeys commandes
- 2011-11-17 03:01:10下载
- 积分：1
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wuxiandianli
无线电力传送，无线充电 ，无线传输论文，共振原理抓住电磁波。(Wireless power transmission, wireless charging, wireless transmission papers to seize the resonance theory of electromagnetic waves.)
- 2011-10-29 11:46:33下载
- 积分：1
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Performance_Comparisons_between_FLL_PLL_and_DLL
FLL、PLL、DLL的设计与比较,在扩频通信系统中这三种环路就是关键。(FLL, PLL, DLL design and comparison, in the spread spectrum communication system in these three loops is the key.)
- 2009-10-10 21:20:13下载
- 积分：1
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STIM300
STIM300高精度IMU的输出解码程序，MOD93格式，带CRC校验，直接可以运行(MOD93 format with a CRC check can be run directly)
- 2021-05-07 15:31:36下载
- 积分：1
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02_whole
Multi-Carrier Cooperative Wireless Communication
- 2017-11-15 00:10:22下载
- 积分：1
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ENC28J60
带SPI接口的独立以太网接口控制器，支持全双工和半双工模式，高速SPI接口(Independent Ethernet interface controller with SPI interface, support for full-duplex and half-duplex mode, high-speed SPI interface)
- 2013-03-19 15:11:32下载
- 积分：1
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IEC-104Master
支持IEC60870-5-104: 2000
IEC104规约软件包
实现104规约主站侧链路层的功能(IEC_Master_104.lib:
void Init_SockServerport(WORD port=2404)
void Init_Linkpara(int t0=30,int t1=15,int t2=10,int t3=20,int k=12,int w=8)
virtual void On_init_Link_process()
virtual void On_init_Sock_process()
virtual void On_ErrorMsg(char*msgbuf)
void slave_start()
void slave_close() )
- 2013-09-07 01:02:16下载
- 积分：1
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TheResearchAndIPDesignOfSMBusBasedSmartBattery
本文研究了SMBus
规范，介绍了典型的基于片上系统（SoC）设计的知识产权核（IP）实现，采用自顶向下
(Top-down)的集成电路设计方法完成了设计，并架构了基于总线功能模型(BFM)的验证平台
完成功能仿真，顺利完成了逻辑综合和时序仿真。FPGA 验证和投片后测试均表明设计具有
良好的性能。(This paper studies the SMBus specification, based on the introduction of the typical system-on-chip (SoC) intellectual property core design (IP) implementation, using top-down (Top-down) of the integrated circuit design methods achieve a design and architecture based on the total Line functional model (BFM) achieve functional verification platform for simulation, successfully completed a logic synthesis and timing simulation. FPGA silicon validation and post-tests show that the design has good performance.)
- 2009-03-26 12:16:53下载
- 积分：1
