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滤波器接收机
相关语句
  filter receiver
     Further,we compare the approximate decorrelating detector with decorrelating detector and matched filter receiver,and numerical results show that the performance of the approximate detector degrades a little compared to decorrelating detector,but outperforms that of matched filter receiver greatly.
     并和解相关检测器以及基于匹配滤波器的接收机进行了比较 ,数值结果表明这种检测器比常规基于匹配滤波器接收机的性能要优越很多 .
短句来源
     Traditional match filter receiver suffers from multiple access interference and near-far effect in CDMA systems. Previous multi-user detection schemes proposed to mitigate the near-far problem and the multiple access interference are too complex to be implemented, as the cancellation schemes are all needed to reconstruct interfering users' signals.
     CDMA通信系统中常规的匹配滤波器接收机无法克服CDMA的多址干扰和远近效应 ,而已有的干扰抑制的多用户接收机都比较复杂 ,在进行干扰对消中均需要对信号进行重建 ,增加了系统延时。
短句来源
     The error probability of the matched filter receiver is calculated based on above analysis and it accord with the result determined by simulation.
     在此基础上计算了匹配滤波器接收机的错误概率并与计算机仿真值做了对比,结果表明二者较为吻合。
短句来源
  “滤波器接收机”译为未确定词的双语例句
     Combined with the principles of orthogonal complementary codes and based on orthogonal complementary codes CDMA system the multi-path signal reception techniques that adopted an adaptive recursive filter but not a RAKE receiver are described in this paper.
     结合正交全补码编码原理,阐述了基于正交全补码CDMA系统不使用RAKE接收机,而采用自适应递归滤波器接收机的多径信号接收技术。
短句来源
     Muhiuser detection is important for CDMA systems to reduce multiple access interference(MAI)and near-far effect. In this paper,we consider the Radial Basis Function Network (RBFN) as the multiuser detector in DS-CDMA systems. The model of the RBF multiuser detector in AWGN channel is described,and the principle of RBF multiuser detector is ana- lyzed.
     多用户检测技术是CDMA系统抑制多址干扰,克服远近效应的关键技术,采用RBF神经网络作为DS—CDMA系统的多用户检测器,给出在同步高斯信道条件下RBF神经网络多用户检测器原理图,并分析了利用RBF神经网络进行多用户检测的原理,通过仿真实验证明,讨论的RBF神经网络多用户检测器能够得到优于匹配滤波器接收机的误码率检测性能。
短句来源
  相似匹配句对
     Filter design in multiplex receiver.
     多通道复接信号接收机滤波器的设计
短句来源
     The Design of Power Measurement Filter in RAKE Receiver
     RAKE接收机中功率测量滤波器的设计
短句来源
     Auto tracked Filter
     自动跟踪滤波器
短句来源
     Media Receiver
     多媒体接收机
短句来源
     Filter in hydraulics
     液压滤波器
短句来源
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  filter receiver
A two‐stage wavelet filtering process is used to emulate a matched‐filter receiver to optimize signal detectability.
      
It is shown that the multicarrier CDMA matched filter receiver performs favourably compared to the direct sequence CDMA matched filter receiver for 1 -path fading.
      
The detector outperforms the conventional matched filter receiver in terms of BER.
      
Power trade-off regions are identified which characterize the significant advantage that the approximate decorrelator provides over the matched filter receiver.
      
In spite of these two effects the resultant capacity is still significantly higher than that with the conventional matched filter receiver.
      
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The capacity of the CDMA system is limited by the conventional matched filter receiver which suffers from near far problems of CDMA interferences. Multi user detection schemes previously proposed mitigate the near far problem, but are complex and require explicit knowledge or estimates of the interference parameters. This paper proposes a simplified MMSE adaptive multi user detector, which can be implemented adaptively when interference parameters are unknown or time varying. Numerical results are provided...

The capacity of the CDMA system is limited by the conventional matched filter receiver which suffers from near far problems of CDMA interferences. Multi user detection schemes previously proposed mitigate the near far problem, but are complex and require explicit knowledge or estimates of the interference parameters. This paper proposes a simplified MMSE adaptive multi user detector, which can be implemented adaptively when interference parameters are unknown or time varying. Numerical results are provided that show that this scheme offers significant performance gains relative to the matched filter receiver.

常规的匹配滤波器接收机无法克服CDMA的多址干扰和远近效应,因而限制了CDMA系统的容量.为此,需要采用干扰抑制和自适应处理的多用户检测技术.已有的很多抗远近效应和干扰抑制的多用户接收机都比较复杂,还要求估计干扰用户的信号参量.该文提出一种简化的自适应最小均方误差多用户检测接收方法,可以用自适应方式实现滤波器参数的最小均方误差意义上的最优化.理论分析与数字模拟的结果表明该方法与匹配滤波器相比,能明显地提高抗多址干扰能力

In this paper,an approximate decorrelating detector is analyzed on the basis of a first order approximation to the inverse crosscorrelation matrix of signature waveforms.Then we detail on the closed form of bit error rate of the approximate decorrelating detector.We present an approximate analysis of the bit error rate performance on additive white Gaussian noise (AWGN) channel and flat fading channel respectively.Further,we compare the approximate decorrelating detector with decorrelating detector and matched...

In this paper,an approximate decorrelating detector is analyzed on the basis of a first order approximation to the inverse crosscorrelation matrix of signature waveforms.Then we detail on the closed form of bit error rate of the approximate decorrelating detector.We present an approximate analysis of the bit error rate performance on additive white Gaussian noise (AWGN) channel and flat fading channel respectively.Further,we compare the approximate decorrelating detector with decorrelating detector and matched filter receiver,and numerical results show that the performance of the approximate detector degrades a little compared to decorrelating detector,but outperforms that of matched filter receiver greatly.

本文用一阶近似多项式分解来近似代替扩频码的相关阵逆阵 ,得到一种近似解相关检测器 ,文中对该检测器的误码率进行了详细地分析 ,给出了误码率的解析表达式 .并和解相关检测器以及基于匹配滤波器的接收机进行了比较 ,数值结果表明这种检测器比常规基于匹配滤波器接收机的性能要优越很多 .

Traditional match filter receiver suffers from multiple access interference and near-far effect in CDMA systems. Previous multi-user detection schemes proposed to mitigate the near-far problem and the multiple access interference are too complex to be implemented, as the cancellation schemes are all needed to reconstruct interfering users' signals. In this paper, an interference cancellation detector is proposed, which don't need to reconstruct each user's signal and cancel interference on symbol-level. It can...

Traditional match filter receiver suffers from multiple access interference and near-far effect in CDMA systems. Previous multi-user detection schemes proposed to mitigate the near-far problem and the multiple access interference are too complex to be implemented, as the cancellation schemes are all needed to reconstruct interfering users' signals. In this paper, an interference cancellation detector is proposed, which don't need to reconstruct each user's signal and cancel interference on symbol-level. It can effectively eliminate the amount of operation, improve the signal-to-noise ratio and accelerate processing as well. Numerical results are provided to show that this scheme offers significant performance compared with the match filter receiver. \;

CDMA通信系统中常规的匹配滤波器接收机无法克服CDMA的多址干扰和远近效应 ,而已有的干扰抑制的多用户接收机都比较复杂 ,在进行干扰对消中均需要对信号进行重建 ,增加了系统延时。文中提出了一种基于门限判决和symbol级对消的多用户检测方法 ,它在symbol级上重构了真正的多址干扰成分 ,并依据门限 ,选择性地在symbol级上进行对消。理论分析和数值计算表明这种方法与常规方法和其它干扰对消方法相比能够有效减少运算量 ,提高解调信噪比和处理速度 ,提高抗多址干扰能力。

 
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