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fast maximum likelihood
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  最大似然估计
     It is important to estimate parameters of Linear Frequency Modulated(LFM) Signal for countering synthetic aperture radar. Based on analyzing LFM signal with Radon-Wigner transform and fast dechirp as well as maximum likelihood (ML) estimation, a method of eliminating side lobe arise from ML estimation is brought forward. And then, a fast maximum likelihood estimation with part search is produced to estimate starting time and slope of LFM signals.
     线性调频(LFM)信号参数检测是对SAR对抗的一个重要问题,本文在对用Radon-Wign er变换、快速解线调和最大似然(ML)估计和分析LFM信号的基础上,给出一种消除ML估计带来旁瓣的方法,进一步提出了一种局部快速搜索的最大似然估计法,并用于LFM信号的起始频率和调频斜率等参数的估计。
短句来源
  快速最大似然多径
     In this paper, a fast maximum likelihood channel estimation method for a new of the CDMA system user is presented.
     提出了对一个进入CDMA系统的新用户进行快速最大似然多径信道参数估计的方法。
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  “fast maximum likelihood”译为未确定词的双语例句
     L-section trellis structures of some BCH codes are presented. A fast maximum likelihood decoding algorithm for BCH codes is proposed correspondingly, Decoding porblem of q-ary images of qm-ary block codes is also discussed. The direct sum partition and the associated decoding algorithms are given for the images.
     本文讨论了分组码的格图结构,给出了某些BCH码L段格图结构,并据此提出了BCH码的快速最大似然译码算法,同时讨论了q~m元分组码的q元映象的译码问题,给出了q元映象的直和划分结构和相应的译码算法。
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  fast maximum likelihood
A fast maximum likelihood decoding algorithm for BCH codes is proposed correspondingly, the decoding problem of q-ary images of qm-ray block codes is also discussed.
      
Next, we present two techniques for fast maximum-likelihood audio and video synchronization designed to cope with typical de-synch attacks.
      


Trellis structures of block codes are discussed. L-section trellis structures of some BCH codes are presented. A fast maximum likelihood decoding algorithm for BCH codes is proposed correspondingly, Decoding porblem of q-ary images of qm-ary block codes is also discussed. The direct sum partition and the associated decoding algorithms are given for the images.

本文讨论了分组码的格图结构,给出了某些BCH码L段格图结构,并据此提出了BCH码的快速最大似然译码算法,同时讨论了q~m元分组码的q元映象的译码问题,给出了q元映象的直和划分结构和相应的译码算法。

 In this paper a computationally efficient algorithm referred to as EXPO is proposed for the estimation of the parameters of exponentially damped sinusoids. Based on the signal separation theory the EXPO transforms the multiple signal parameter estimation into a series of single signal parameter estimation. In addition the a priori information about the compressed likelihood function of the known signal is exploited to significantly reduce the computational load of the single target parameter estimation....

 In this paper a computationally efficient algorithm referred to as EXPO is proposed for the estimation of the parameters of exponentially damped sinusoids. Based on the signal separation theory the EXPO transforms the multiple signal parameter estimation into a series of single signal parameter estimation. In addition the a priori information about the compressed likelihood function of the known signal is exploited to significantly reduce the computational load of the single target parameter estimation. Numerical examples show that the above mentioned algorithm outperforms similarly structured algorithm FMLfast maximum likelihood.

提出了一种用于多个指数衰减正弦信号参数估计的有效算法——EXPO。基于信号分离估计理论,该方法将多个信号参数估计问题转化为一系列单个目标参数估计问题,并利用信号压缩似然函数形状的先验信息减小了单个信号参数估计的运算量。大量的仿真实验证明本方法优于具有类似结构的核磁共振成像快速最大似然(FML)算法。

The parameter estimation of the signal propagating channel in CDMA systems is a key technology, which involves estimation of amplitude and delay of signal propagating channels. In this paper, a fast maximum likelihood channel estimation method for a new of the CDMA system user is presented. The simulation result shows that this method can achieve fast capture rate and sound performance.

信道估计是CDMA系统中的关键技术 ,涉及到对用户信号传播信道的幅度、相位和延时的估计。提出了对一个进入CDMA系统的新用户进行快速最大似然多径信道参数估计的方法。实验结果对比表明 ,本方法捕获性能好 ,且捕获的速度更快

 
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