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帧同步的实现方法,基于7位巴克码的实现,采用V_LOG编写成的工程例子
可以直接编译-frame synchronization Method, 7 based on the realization of Barker Code, adopted the project into V_LOG example of the preparation can be directly compiled
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基于CMMB系统的帧同步与符号同步技术的研, 中国CMMB标准少有的论文,-CMMB system based on frame synchronization and symbol synchronization technology research, very few Chinese CMMB standard paper,
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各种同步实验及系统设计。包括:同步载波提取、帧同步信号提取实验、位同步信号提取实验以及衰落信道帧同步电路设计与实现和位同步的提取方法设计。-Various synchronization experiment and system design. Including: synchronous carrier extraction, frame synchronization signal extraction experiments, bit synchronization signal ext
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详细介绍了7位巴克码以及帧同步,7位巴克码与帧同步的关系。-Details of the seven Barker code and frame synchronization, 7 Barker code and frame synchronization relationship.
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为了减少无线信道中存在的多径和频偏对中国移动多媒体广播(CMMB)系统传输信号同步的影响,本文结合CMMB标准协议规定的具体帧结构,分析了符号同步对系统的影响,讨论了传统最大似然(ML)算法的优缺点,并基于文献中的无数据辅助算法,提出了一种适合该系统并且复杂度较低的粗符号定时同步算法。仿真结果表明,在AWGN及多径信道环境下,新算法可以有效克服传统算法相关峰不明显的缺陷,其估计性能更好-In order to reduce the influence for synchronization of
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基于线性预测编码及音框基频周期同步之高品质语音变换技术页数-Based on linear predictive coding and the frame fundamental frequency cycle synchronization of high-quality voiceTransform technology pages
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基于线性预测编码及音框基频周期同步之高品质语音变换技术页数-Based on linear predictive coding and the frame fundamental frequency cycle synchronization of high-quality voiceTransform technology pages
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基于FPGA的数字通信系统帧同步电路设计-FPGA-based digital communication system frame synchronization circuit design
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the PDF details contain the frame synchronization mechanism that can be used with permutation code sets
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在 OFDM 数学原理和收发模型的基础上,本文对帧同步、定时同步、频率同
步和采样同步给 OFDM 系统所产生的影响进行了理论分析,同时讨论了基于循环
前缀或训练符号的典型 OFDM 同步算法。参考 802.11a 突发数据帧结构和系统参
数,分析几种 OFDM 同步算法用于突发分组传输的性能;在分析了几种经典的信
道估计算法基础上,通过对复杂度和性能的折衷,选择一种适合本文系统的估计
算法。最后作者提出一种改进型 LS 信道估计算法,该算法考虑了 LS 算法中噪声
的影
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This model shows the implementation of a QPSK transmitter and receiver. The receiver addresses practical issues in wireless communications, e.g. carrier frequency and phase offset, timing offset and frame synchronization. The receiver demodulates the
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In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. frame
synchronization
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本文设计的数字分接器是由帧同步提取模块、位同步提取模块、帧同步移位和时序信号恢复模块、分路器模块、串/并转换电路模块五部分组成-Digital tapping machine is designed in this paper by the frame synchronization extraction module, a synchronous extraction module, the displacement of frame synchronization and timing si
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:LTE(Long Term Evolution,长期演进)系统中的小区初始搜索过程通过分别检测主同步信号(Primary synchronization Signal,PSS)和辅同步信号(Secondary synchronization Signal,SSS)来完成,搜
索结果包括小区组ID、符号定时、频偏估计、组内小区ID以及帧定时[1]。然而,若接收信号 1IDN 2IDN
中存在整数倍频偏,则由于时域的相位旋转,主
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A 16-QAM signal X, whose power is normalized as unity, is transmitted with OFDM over the discrete-time channel model h which has been used in Homework #2 and #3. As depicted in the below figure, the transmitter (TX) is now equipped with an N-point ID
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本设计是基于FPGA技术来实现QPSK
数字调制传输系统。通过VHDL语言基于
FLEXlOK芯片完成了QPSK数字调制系统
的调制与解调模块、位同步信号恢复模块、
帧同步信号提取模块,数据采集模块、数据
恢复等模块的设计与仿真。-This design is based on FPGA technology to achieve QPSK
Digital modulation transmission system. Based on the VHDL language
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