Description: ofdm系统的载波频偏干扰消除程序。算法在程序中有详尽的注释。算法性能优良。-ofdm system carrier frequency offset interference cancellation process. Algorithm are detailed in the program notes. Algorithm is excellent. Platform: |
Size: 7168 |
Author:penglu |
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Description: VHDL写的fpga程序，可产生三角波，方波据此波，正弦波，可实现任意频偏的调频，调相，调幅-Fpga write VHDL program can generate triangle wave, square wave accordingly wave, sine wave, can achieve any frequency offset of the FM, PM, AM Platform: |
Size: 12225536 |
Author:陈俊涵 |
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Description: 用SCA算法实现时间同步和载波频率偏移。载波频率偏移通过训练序列实现-SCA algorithm with time synchronization and carrier frequency offset. Carrier frequency offset achieved by training sequence Platform: |
Size: 1024 |
Author:xie ning |
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Description: 使用M&M算法进行载波频偏估计，主要应用于dvb-s2中-M &M algorithm with carrier frequency offset estimation, mainly used in the dvb-s2 Platform: |
Size: 1024 |
Author:shang |
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Description: 用MATLAB在产生的观测数据中捕获其中PRN 号码为“5”C/A 码。
（1） 观测数据应该有一定的多普勒频偏D f（-10kHz〈D f〈+10kHz）；
（2） 加入高斯白噪声，使其信噪比为-20dB；
（3） 捕获成功后，应给出捕获标志，并给出估计的频偏和码偏值。-Generated by MATLAB in which observed data capture PRN number is " 5" C/A code. (1) there should be some observations of Doppler shift D f (-10kHz < D f < +10 kHz) (2) by adding Gaussian white noise, so SNR is-20dB (3) capture success After the capture flag to be given, and given the estimated frequency offset and code bias values. Platform: |
Size: 3072 |
Author:李伟 |
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Description: The tf–idf weight (term frequency–inverse document frequency) is a weight often used in information retrieval and text mining. This weight is a statistical measure used to evaluate how important a word is to a document in a collection or corpus. The importance increases proportionally to the number of times a word appears in the document but is offset by the frequency of the word in the corpus. Variations of the tf–idf weighting scheme are often used by search engines as a central tool in scoring and ranking a document s relevance given a user query. Platform: |
Size: 5120 |
Author:oplachko84 |
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Description: 文章根据频率选择性衰落信道的抽头延迟线模型，将针对平坦衰落信道的CS(周期平稳过程理论)频偏盲估计
算法扩展到了频率选择性衰落信道，并通过仿真证明这种扩展是可行的.仿真结果还表明CS算法不仅有好的抗平
坦衰落能力，而且有很好的杭频率选择性衰落性能.-Article according to frequency selective fading channel tap delay line model, the flat fading channel for CS (cycle stationary process theory) Frequency Offset Estimation Algorithm extended to frequency selective fading channel, and simulation prove that expansion is feasible. Simulation The results also show that the CS algorithm not only has good ability of anti-flat fading, and have a good hang frequency selective fading performance. Platform: |
Size: 324608 |
Author:motonula |
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Description: 完美的ofdm系统matlab仿真程序，从编解码到加入信道到调制解调到信道均衡到同步和频偏估计，带有详细的程序说明-Matlab simulation ofdm system the perfect program to join from the codec to the modem channel to channel equalization to the synchronization and frequency offset estimation, with a detailed description of the procedures Platform: |
Size: 911360 |
Author:dashanfh |
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Description: it is IEEE research paper on "The Implementation of Estimation and
Correction of Carrier Frequency Offset of
COFDM system in DAB Receiver"-it is IEEE research paper on "The Implementation of Estimation and
Correction of Carrier Frequency Offset of
COFDM system in DAB Receiver",, Platform: |
Size: 186368 |
Author:ashish |
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Description: 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 signals in CMMB (China Mobile Multimedia Broadcasting) system, which caused by multi-path and frequency offset in wireless channel. This paper combined the specific frame structure of CMMB standard protocol, analyzed the impact of symbol synchronization, discussed advantages and disadvantages of the traditional ML (Maximum Likelihood) algorithm, and based on the non-data auxiliary algorithm in literature, proposed a coarse symbol timing synchronization algorithm, it is suitable for the system and its complexity is very low. Simulation results show that the new algorithmof signals in CMMB Platform: |
Size: 246784 |
Author:JFS |
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Description: This paper studied the carrier-frequency offset effect on the performance of asynchronous multicarrier direct-sequence code-division multiple-access (MC-DS-CDMA) systems with aperiodic random spreading and correlated Rayleigh fading. This paper also compared the performance of MC-CDMA systems using the optimum combining technique with that of different combining filters. Platform: |
Size: 396288 |
Author:sh3e |
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Search - frequency offset