• Channel n (where n is 0...78) uses a carrier frequency of 2402+n MHz.

    信道n(n为0...78)使用的载波频率为2402+nMHz。

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  • Carrier frequency offset is one of the key problems in OFDM system.

    载波频率偏移是OFDM系统实现的关键问题之一。

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  • The methods to estimate the carrier frequency of MPSK signals are researched.

    研究了MPSK信号载波频率的估计方法,采用三种算法进行载频估计。

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  • Carrier frequency synchronization is one of the key techniques of OFDM system.

    载波同步是正交频分复用系统的一项关键技术。

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  • Frequency spectrum element, carrier frequency. Frequency type can be specified.

    频谱元件,载波频率。可指定频率类型。

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  • Carrier frequency estimation is a significant problem in wireless communication.

    载波同步是无线通信系统中的关键环节。

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  • The automatic carrier frequency tracking scheme is accomplished by two steps in our system.

    自动载波频率跟踪部分的设计分了两个主要阶段。

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  • Using the planar search, code start point and carrier frequency were reached at the same time.

    采用了二维联合搜索的快速算法,同时捕获扩频信号的载频和码起点。

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  • The time synchronization and carrier frequency offset estimation can be achieved simultaneously.

    该算法能够同时实现时间同步与频偏估计。

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  • One way to get such a signal into a human may be through use of a high frequency carrier frequency.

    一种将这种信号传入人脑的方法是通过加载了高频的频率。

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  • Time-selective Rayleigh fading of channels is caused by Doppler shift and carrier frequency offset.

    接收端的高速运动或者载频的偏移,会引起信道的时间选择性衰落。

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  • The offset of carrier frequency can cause interference between subchannels in a multicarrier system.

    对于多载波系统,载波频率的偏移会导致子信道之间产生干扰。

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  • This paper proposes a carrier frequency offset estimation algorithm for interleaved multi-user OFDM.

    提出一种针对多用户交织OFDM载频偏移估计的算法。

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  • The fundamental principle of sub-carrier frequency modulation used for FBG array interrogation is analyzed.

    分析了副载波调频技术用于光纤光栅阵列查询的基本原理。

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  • Finally, these judged variables adjust the local oscillating frequency to track the carrier frequency by NCO.

    最后用这些变量调节本地振荡频率,以跟踪载波频率。

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  • A novel symbol synchronization and carrier frequency offset estimation method is presented for 39-tone OFDM systems.

    针对短波39音OFDM系统,提出了一种新型的符号同步和载波频偏估计方法。

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  • In a digital communication system, usually there exist carrier frequency offset between the sender and the receiver.

    在数字通信系统中,发送端和接收端的载波往往存在一定的频差。

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  • However, due to the size of a mobile and carrier frequency constraints, multiple antennas can not be possibly implemented.

    然而由于移动台的尺寸和载频的限制,使多天线技术很难实现。

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  • The position and width of interference pattern were related to the observing Angle, range resolution and carrier frequency.

    明暗条纹出现的位置和宽度与雷达观测角度、距离向分辨率、以及雷达工作频率等有关。

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  • Cyclic period chat spectrum estimation is used on parameters estimation such as carrier frequency, chip width and amplitude.

    参数估计主要对直扩信号的载频、码片时宽和幅度进行了估计。

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  • We propose new carrier frequency acquisition and channel estimation algorithms based on the time-domain analysis of OFDM system.

    本文根据OFDM系统特点,分析了OFDM系统的时域载波频率捕获和信道估计方法。

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  • Radar signal Carrier Frequency and Pulse amplitude are very important parameters in radar countermeasure and radar reconnaissance .

    雷达信号载频与脉冲幅度是雷达侦察与对抗的重要参数。

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  • In this paper, a novel frequency synchronization estimation algorithm is provided to achieve carrier frequency capture and tracking.

    文中提出了一种低复杂度的同步估计,来实现载波频率捕获和跟踪。

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  • Lastly, the jamming effectiveness is emphatically analyzed in the presence of bit error, bit width error and carrier frequency error.

    最后分析了干扰信号在存在误码、码元宽度误差以及载频误差情况下的干扰效果。

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  • But both of them are sensitive to carrier frequency shift, further, they have comparative BER under AWGN and Doppler shift environment.

    但两者都对载波频率偏移敏感,且在AWGN和多普勒频移环境下表现相当。

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  • It directly processes the phase of the received signal and realize fast capture of the carrier frequency and keeping the carrier phase.

    它直接对接收信号的相角进行处理,以完成载波频率的快速捕获和载波相位的跟踪。

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  • The estimation of carrier frequency and design of loop parameters are analyzed in this thesis when the two characteristics are considered.

    本文对这两个特征下载波同步的两个方面——载波频率参数估计与环路参数设计进行了分析。

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  • As one of the most crucial technique of OFDM, synchronization technique includes carrier frequency synchronization and symbol synchronization.

    同步技术是OFDM最关键的技术之一,它包括载波频率同步和符号同步。

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  • The study shows that the new algorithm is not affected by carrier frequency offset basically, and has strong characteristic of resisting noise.

    研究表明,新算法的性能基本不受载波频偏的影响,且具有很强的抗噪特性。

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  • The most critical causes yielding the ISI as well as ICI are symbol timing and carrier frequency offset which are occurred in the OFDM receiver.

    而产生ISI和ICI的主要原因是在OFDM系统接收端产生的符号定时偏差和载波频率偏差。

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