• The orthogonality, however, is impaired by multipath fading channels, thus causing multicode interference (MCI) and deteriorating the system's performance at high data transmission rates.

    但是这种正交性却被多径衰落信道破坏,产生了多码道干扰,严重影响了系统高速传输数据的性能。

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  • Simulation results demonstrate that the proposed method offers higher detecting performance and is capable of combating both channel fading and multiple-access interference.

    仿真结果验证了本文方法具有良好的检测性能,可以在克服信道衰落的同时抑制多址干扰。

    youdao

  • This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.

    该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。

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  • In shortwave communication system, Intersymbol Interference is serious and signal is distorted extremely because of fading channel resulted in by the effect of multipath.

    在短波通信系统中,由于多径效应常常引起信道衰落,直接结果是码间串扰非常严重。

    youdao

  • Considering the effect of the shadow fading and fast fading on the receive signal, the received useful signal and interference signal should be random variables which change continuously.

    考虑到阴影衰落和快衰落对于接收信号的影响,接收到的有用信号和干扰信号是随机变量,相应的载干比也是随机的。

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  • We studied the performances of this system by simulations, including the impacts of channel fading, angle spread and co-channel interference on DOA estimation.

    通过仿真,研究了这一系统在移动通信环境下的性能,包括信道衰落、信号角度扩散及同频干扰用户等对DOA估计的影响。

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  • When designing a special type small satellite (STSS) communication system with spread-spectrum technology, the fading and the interference must be considered carefully.

    对于特种小卫星扩频通信系统,衰落及干扰状况是系统设计时必须考虑的重要方面。

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  • It can waken the multipath effect availably, eliminate symbol interference and fight against frequency select fading. Moreover, the channel utilization rate is high.

    他能有效地对抗多径效应,消除符号间干扰,对抗频率选择性衰落,而且信道利用率高。

    youdao

  • The performance of downlink CDMA systems is influenced by channel fading and multi-access interference.

    CD MA下行链路的性能受到信道衰落和多址干扰的影响。

    youdao

  • It can be used in multipath channels to suppress multi-address interference and overcome multi-channel fading.

    本文中提出的这种算法适用于多径衰落信道,能很好抵消多址干扰和克服多径衰落。

    youdao

  • The various factors, such as noise, interference and fading, relating to radio wave propagation circuits, as well as the methods dealing with the factors are described.

    本文讨论了与电波传播电路计算有关的各种因素,例如噪声、干扰和衰落,以及对它们的处理方法。

    youdao

  • I introduce the frequency allocation between BCCH carrier frequency and TCH, signal fading arithmetic, interference theory and the adjusting thinking of dynamic power control.

    介绍了BCCH载波与TCH载波的频率配置、信号衰落算法、干扰原理、动态功率控制的调节思路,以及提高网络质量,改善小区登陆与切换性能的措施。

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  • A novel approach is proposed for linear multi user detection in conjunction with transmit diversity to combat channel fading, multi user interference and inter symbol interference.

    提出了一种将线性多用户检测与发射分集相结合的新方法,该方法能在克服信道衰落的同时抑制多址干扰和码间串扰。

    youdao

  • The bit error rate of three modulations in a fast fading channel with cochannel interference is evaluated.

    分析了这三种调制方式的抗衰落及抗同道干扰的误比特率性能。

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  • In wireless communication system, Inter-symbol Interference is serious and signal is distorted extremely because of fading channel resulted in by the effect of multipath.

    在无线通信系统中,由于多径效应常常引起信道衰落,直接结果是码间干扰非常严重。

    youdao

  • In CDMA mobile communication systems, multiple access interference can be cancelled by multiuser detection technique. The degradation by channel fading can be reduced by diversity reception.

    在CD MA移动通信系统中,多址接入干扰可以通过多用户检测技术来消除,而分集接收可以减小信道衰落的影响。

    youdao

  • It is a very complex question to cope with cochannel interference and fading simultaneously at a base station in mobile communication.

    移动通信中,在基站同时处理信道间干扰和多径衰落是一个比较复杂的问题。

    youdao

  • The problems mainly exhibit to be multi-path propagation in the wireless fading channel, signal fading caused by the scattering and Inter-Symbol Interference caused by the long multi-path time delay.

    其中主要为无线衰落信道中的多径传播和散射引起的信号衰落,以及大的多径时延而引起的符号间干扰。

    youdao

  • In the receiver, successive interference cancellation is employed to remove or suppress sever multiuser interference, and this detector is easy to implement and apt to Rayleigh fading channel.

    接收端采用串行干扰抵消的方法去除或抑制很严重的多用户干扰,该方法实现简单,适合瑞利衰落信道。

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  • Simulation results show an evident improvement in AWGN and correlated Rayleigh fading channels. The severe intersymbol interference (ISI) of GMSK signals is also effectively suppressed.

    仿真结果表明,在AWGN加性高斯白噪声和相关瑞利衰落信道下,系统性能均有显著改进,并能有效克服GMSK信号所固有的严重符号间串扰ISI。

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  • A general space-time CDMA system model in multipath fading channels is built to study how to suppress both multiple access interference (MAI) and multipath fading.

    通过建立了一般的空时CD MA系统模型,探讨多址干扰和多径效应的联合抑制问题。

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  • Blind equalization is an effective way to suppress the inter-symbol interference (ISI), which is caused by multipath fading communication channels.

    在数字通信中,盲均衡是克服多径衰落信道导致的码间干扰的一种有效方法。

    youdao

  • Orthogonal Frequnency Division Multiplexing(OFDM) is suitable for high rate data transmission in wireless channels because it can combat Inter-Symbol Interference and multipath fading efficiently.

    正交频分复用(OFDM)技术具有很强的抗符号间干扰、抗多径衰落和时延的能力。并且保持较高的传输速率。

    youdao

  • Orthogonal Frequnency Division Multiplexing(OFDM) is suitable for high rate data transmission in wireless channels because it can combat Inter-Symbol Interference and multipath fading efficiently.

    正交频分复用(OFDM)技术具有很强的抗符号间干扰、抗多径衰落和时延的能力。并且保持较高的传输速率。

    youdao

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