Description: 此为频偏校正程序,通过TD_GG算法得到的频偏值还存在几赫兹的残余频偏，这里，我们可以通过反馈算法进行校正，以得到更加精确的频偏值。-for this frequency offset correction procedure for the adoption of the algorithm TD_GG Frequency values still exist remnants of a few hertz frequency offset, here, we can pass feedback correction algorithm, to be more precise frequency offset value. Platform: |
Size: 8192 |
Author:张凯飞 |
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Description: OFDM信号的频偏校正程序，用于估计子带上的频率偏移。-OFDM signals in frequency offset correction procedure used to estimate the sub-band frequency deviation. Platform: |
Size: 7168 |
Author:dengyongma |
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Description: We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation,
phase-shift keying, and pulse amplitude modulation
communications systems.We study the performance of a standard
CFO estimate, which consists of first raising the received signal to
the Mth power, where M is an integer depending on the type and
size of the symbol constellation, and then applying the nonlinear
least squares (NLLS) estimation approach. At low signal-to noise
ratio (SNR), the NLLS method fails to provide an accurate CFO
estimate because of the presence of outliers. In this letter, we derive
an approximate closed-form expression for the outlier probability.
This enables us to predict the mean-square error (MSE) on CFO
estimation for all SNR values. For a given SNR, the new results
also give insight into the minimum number of samples required in
the CFO estimation procedure, in order to ensure that the MSE
on estimation is not significantly affected by the outliers. Platform: |
Size: 1265664 |
Author:吴大亨 |
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Description: 为解决直接序列扩频系统的数字收发机中初始频率的捕获问题，提出了一种通过DFT变换，在频域
上进行抛物插值运算的频偏估计的算法。该算法可适应低信噪比、宽频率偏移范围的恶劣通信环境和突发的通信
模式，且算法复杂度较低。该算法已在FPGA 中实现。-To address the direct sequence spread spectrum system, the number of transceivers in the initial frequency of the capture problem, a transformation through the DFT, in the frequency domain for parabolic interpolation computing frequency offset estimation algorithms. The algorithm can be adapted to low signal to noise ratio, broadband rates offset the scope of bad communications environment and unexpected modes of communication, and the algorithm complexity low. The algorithm has been realized in the FPGA. Platform: |
Size: 63488 |
Author:赵平 |
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Description: OFDM系统中的载波频偏估计算法及其性能分析,OFDM 系统中训练序列辅助的载波频偏估计算法及其性能-OFDM system carrier frequency offset estimation algorithm and its performance analysis, OFDM systems training sequence-assisted carrier frequency offset estimation algorithm and its performance Platform: |
Size: 1760256 |
Author:李继龙 |
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Description: OFDM仿真程序MATLAB
接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档-MATLAB simulation program OFDM receiver algorithm and procedures used in processes and the sending end to send the frame structure of OFDM symbols are. Concrete frame structure, as well as the timing estimation, frequency offset estimation, the remaining error tracking algorithm algorithm can refer to documentation Platform: |
Size: 124928 |
Author: |
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Description: 这是一篇OFDM频偏估计的元老级文章。相信会对搞频偏的同志很有帮助。-This is a frequency offset estimation of OFDM senior articles. Believe that the comrades will be very helpful to engage in offset. Platform: |
Size: 620544 |
Author:bill |
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Description: 在DAB系统中的频率同步，载频同步，参考一下Carrier frequency offset estimation of DAB receiver based on phase reference symbol-In the DAB system frequency synchronization, carrier frequency synchronization, refer to Carrier frequency offset estimation of DAB receiver based on phase reference symbol Platform: |
Size: 210944 |
Author:Aries |
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Description: The implementation of estimation and correction of carrier frequency offset of COFDM system in DAB receiver IC ASIC03 Platform: |
Size: 186368 |
Author:Aries |
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Description: This paper is" a technique for orthogonal frequency division multiplexing frequency offset correction which wrote by H.Moose Platform: |
Size: 620544 |
Author:Tony |
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Description: 本文研究了基于IEEE802.11a协议的无线局域网络系统的频偏估计问题，介绍了IEEE802.11按系统中前导序列的特点和作用，阐述了传统频偏估计算法并改进，仿真结果表明改进的算法优于传统算法。-In this paper, based on the IEEE802.11a wireless LAN protocol system frequency offset estimation problem, introduce the IEEE802.11 system leader sequence according to the characteristics and role of the traditional and improved frequency offset estimation algorithm, simulation results show that the improved algorithm superior to the traditional algorithm. Platform: |
Size: 492544 |
Author:wangbaozong |
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Description: A New OFDM Synchronization Symbol for Carrier Frequency Offset Estimation.一个新的OFDM载波符号同步论文。-A New OFDM Synchronization Symbol for Carrier Frequency Offset Estimation. A new carrier OFDM Symbol Synchronization thesis. Platform: |
Size: 324608 |
Author:梁君 |
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Description: 考虑频率偏移的OFDM仿真程序,直接根据经典参考文献编写-Consider the frequency offset of OFDM simulation program, directly from the classic reference preparation Platform: |
Size: 1024 |
Author:yuan |
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Description: 本文首先概述了OFDM 的原理、特征和关键技术，介绍了系统需要的几种同步。然后就同步误差对系统性能的影响进行了简单的分析，表明定时偏差和采样频率偏差将会引入码间干扰，载波频率偏差导致载波间干扰的发生。因此，在OFDM系统接收机中定时的确定、载波频率偏差和采样频率偏差的纠正是信号恢复的关键。之后对OFDM系统同步的几种实现方法进行了介绍，分析了各同步方法的性能。-The paper first outlines the principles of OFDM, features and key technologies, the system needs to introduce several synchronization. Synchronization error and then the impact on system performance for a simple analysis, show that the timing deviation and the sampling frequency deviation will introduce inter-symbol interference, the carrier frequency deviation led to the occurrence of ICI. Therefore, in OFDM system receiver to determine the timing, carrier frequency offset and sampling frequency offset correction signal to restore the key. After the OFDM system to achieve synchronization of several methods of introduction, an analysis of the performance of the synchronization method. Platform: |
Size: 268288 |
Author:dajinyu |
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Description: 一种ofdm频偏估计误差的方差MATLAB程序，可以运行，能得到结果图 -A frequency offset estimation error variance ofdm MATLAB program, you can run, can get results map Platform: |
Size: 1024 |
Author:邢昊 |
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Search - frequency offset