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- It has been used in wireless LAN standards such as DVB-T, DBA, IEEE802.11.The channel estimation techniques and timing and frequency offset estimation techniques for OFDM systems are investigated in this paper. 在无线局域网标准如欧洲数字电视标准DVB-T、数字音频广播(DAB)标准、IEEE802.;11系列等标准中均采用了OFDM技术。
- Optimal correlation length of symbol timing and frequency offset estimation in OFDM systems OFDM码元定时和频率偏差估计中的最佳相关长度分析
- A Detection Algrithm Based on Joint Time and Frequency Offset Estimation for OFDM in HF Communications 基于时频联合估计的短波OFDM的检测算法
- Specify the time and frequency with which to compile audiences. 指定搜集访问者所使用的时间和频率。
- timing and frequency offset 定时和频率偏差
- It is required that the length of each hop is at least 80 symbols to achieve effective timing error and frequency offset estimation as to demodulate the signal without any delay. 仿真结果表明每跳要传输80比特以上，才能够完成位定时与载波同步并实时解调。
- In this thesis, a joint symbol timing and carrier frequency offset estimator is proposed for orthogonal frequency division multiplexing (OFDM) systems. 中文摘要本论文里，我们提出了一个应用在正交分频多工系统中的符元时间与载波频率误差估测器。
- The simulation for QPSK shows that the algorithm can estimate the carrier phase and frequency offset accurately and reduce the system BER effectively. 结果表明，用该算法可以精确估计载波相位和频差，有效地降低系统的误码率。
- Symbol timing and carrier frequency offset 符号定时和载波频率偏差
- In this paper, a receiver is proposed for the OFDM signal with CoChannel Interference (CCI) and frequency offset.The basic idea is to perform interference suppression before frequency offset estimate. 针对受到共信道干扰的有频率偏移的OFDM信号,该文提出了一种接收机,其基本思想是先做干扰抑制,再做频偏估计。
- The paper studies the effects of timing synchronization and frequency offsets to the error code ratio of an orthogonal frequency division multiple access (OFDMA) system. 文章对频率偏移、系统同步性对OFDMA系统误码率等的影响进行了研究。
- Other departments exhibited similar characteristics, except that the timing and frequency of their peaks were on a different schedule. 其他部门中也存在类似问题,不同之处是它们的峰值出现的时间和频率可能会有所不同。
- From the radio spectrum of Weissenau in Germany, we found a corresponding burst on time and frequency. 在德国Weissenau的太阳射电频谱记录上找到了对应的爆发;
- Cursors give quick readouts of voltage,time and frequency with an accurancy of 1/32 div. 系统可以明显地提高示波器的读出性能:快速给出电压、时间和频率的测量值,读出精度达1/32DIV。
- How to decrease anesthesin time and frequency is a important problem to be considered. 减少换药次数及住院天数是一个重要问题。
- Learning a language require time and effort. 学习一种语言是需要时间和精力的。
- The decorrelation caused by the time and frequency synchronization errors is presented for the first time. 基于该误差模型,分析了时间和频率同步误差对干涉相位的影响,首次推导了同步误差导致的信号去相关。
- Traditionally, the SISO channel is described by the statistics along two dimensions: time and frequency. 传统上，单一输入单一输出的通道可以被两个维度的统计特性所描述，即时域和频域；
- You must make sure of the time and place. 你必须把时间和地点弄清楚。
- It realizes graphics protraction of time and frequency domain in every time period. 它实现了各个信号的时域和频域的图形的绘制。
