实验表明用这种信噪比估计方法选择增益滤波器十分有效。
Experiments show that it is very effective using this method of evaluating gain filter performance.
本文最后讨论了自适应编码中的关键技术——信噪比估计算法。
At the end of this paper SNR estimation algorithm is discussed which plays an important role in adaptive coding technology.
噪声功率谱估计和先验信噪比估计的准确性有助于提高增强后的语音质量。
Correct noise power spectrum estimation and apriori signal-to-noise ratio (SNR) estimation are all essential to good quality of the enhanced speech.
另一方面信噪比估计提供了切换，功率控制和信道分配算法所需的信道质量信息。
On the other hand, signal-to-noise ratio is estimated to provide a switching and power control and channel allocation algorithm for the channel quality information.
主要介绍了一种典型的信噪比估计算法，并对信噪比的自相关矩阵奇异值分解估计法进行了研究。
This paper introduces a typical SNR estimation algorithm by the use of autocorrelation matrix singular value decomposition method.
利用对信号的频域分析，实现对远动通道信噪比估计，从而实现对远动通道中各项参数的全面监控。
The SNR of the remote channel can be estimated based on the frequency spectrum analysis, which leads the monitoring of the all parameters of the remote channel.
研究了LS算法及其DFT改进算法，并将高斯白噪声信道中的信噪比估计方法引入到单载波频域均衡系统中。
LS algorithm and DFT-based algorithm were studied and signal-to-noise estimation algorithms in AWGN channel were introduced to SC-FDE systems.
分析了在相同数据和随机数据扩频调制条件下接收信号信噪比估计的计算方法，并对于有频差情况下的计算方法进行了说明。
The two cases of pilot modulated data and random modulated data were theoretically analyzed, and the calculating method was also presented when the frequency offset existed.
最后，论文提出了一些新的自适应技术，如波特率估计、信噪比估计等，并给出了应用这些技术的自适应调制解调器的改进方案。
Finally, the thesis proposes several newly adaptive technologies, like the estimation of baud rate and SNR. And corresponding improvements are also discussed.
本文研究的是OFDM系统中的信噪比估计算法．并利用DSP芯片．通过AD6640和AD6620组成中频接收平台，将其应用到实际的OFDM传输系统中。
This paper is the study of OFDM SNR estimation algorithm system, using DSP chips and IF receiver platform composed by AD6640 and AD6620 to apply it in actual OFDM transmission system.
只要信噪比不甚低，频点自跟踪频率估计是无偏的且估计方差接近理论下限。
FATAFE realizes unbiased estimation and its estimated variance approaches to theoretical lower bound if only signal-to-noise ratio is not very low.
提出了一种基于小波变换域的块匹配运动估计搜索的新算法，模拟实验表明，利用此算法可获得比一般运动块匹配方法更大的峰值信噪比，具有更好的性能复杂度比。
The authors present a new algorithm for block-matching motion estimation based on wavelet transform. The simulation shows that this algorithm has better PSNR and performance-to-complexity ratio.
估计频率的变化和信噪比的变化趋势从不同的侧面反映了引信工作的历程。
The variation trend of estimated frequency and signal-to-noise reflect the work course off use from different side.
通过实验表明，该方法较其它方法简单有效，即使在较低信噪比的情况下，也能对极点作出较好的估计。
The experimental results demonstrate that the method can give a better estimation of poles of damped exponential signals even in a lower signal-to-noise ratio (SNR) situation.
该估计器能以较低的计算复杂度给出RDS、噪声方差、信道功率和信噪比等多个实时信道参数的准确估计。
The estimator presents both the estimate of instantaneous RDS and the estimates of noise variance, channel power and SNR of current channel with low computational comp.
对于MPSK信号而言，信噪比的估计可以直接转化成对信号模的估计问题。
For MPSK signals, the signal-to-noise ratio (SNR) estimation can be directly transformed into the signal module estimation.
文中根据对输入信噪比的估计，在NLMS算法基础上提出一种改进的LMS算法。
According to the estimated SNR of input signals, this paper proposes a modified LMS algorithm on the basis of the NLMS algorithm.
实验结果证明，这种方法适合在较低信噪比下对带噪语音进行噪声估计。
Experiment proves that this method is adapted to estimate noise in low SNR circumstance for speech with noise.
与已有线性最小均方差(LMMSE)信道估计方法相比，该算法简单并且不需要预先知道信道相关矩阵以及信噪比等信道信息。
Comparing with the Linear Minimum Mean Square Error (LMMSE) channel estimation method, the method is simple and need not know the channel correlation and signal-to-noise (SNR).
此法大大地提高了有效的信噪比(SNR)和自相关矩阵的估计精度。
The effective signal-to-noise ratio (SNR) and the accuracy of autocorrelation estimation are significantly improved through use of this method.
自适应噪声抵消器在高信噪比条件下往往难以取得良好的处理效果，从而使其在参数估计方面的应用受到了很大的限制。
The application of an adaptive noise canceller to parameter estimating is restricted for its unsatisfactory performance in the condition of high SNR input.
作为MAP译码算法的必要参数，信噪比通常通过信道估计单元得到。
As a necessary input parameter for MAP decoding algorithm, SNR was normally obtained from the channel estimation unit.
应用子空间扰动分析研究了宽带CSS法的统计性能，得出了宽带CSS法方位估计误差随信噪比变化的关系。
By using subspace disturbing analysis to investigate the statistical performance of the CSS, the relationship between the DOA estimation error and the signal to noise ratio (SNR) was presented.
该文从理论和仿真两个角度研究了信噪比对多普勒中心频率估计的影响，给出了多普勒中心频率和信噪比的理论及仿真关系曲线。
The effect of Signal-Noise-Ration (SNR) to the estimation of Doppler central frequency has been studied using theoretical method and simulation technique, and results are given in curves.
目前的处理方法普遍需要估计噪声或者信噪比，从而其性能依赖于噪声估计的好坏。
Most resent approaches to the problem employ noise estimate or Signal-Noise Ratio (SNR) estimate, and hence their performances depend on the estimation of noise.
地震子波估计对于提高地震资料数据的分辨率、信噪比有着极为重要的意义，是国内外地震信号处理中长期研究的重要课题。
The estimation of the seismic wavelet has a very important significance for improving the resolution and signal-to-noise of seismic data, and it is a long-term research in seismic data processing.
本文主要研究自适应调制技术的基础：信道估计技术、MQAM信噪比误比特率性能。
This letter mainly deals with the base of adaptive modulating technique: Channel estimation technology and the signal to noise ratio vs. error bit rate performance of MQAM.
提出了一种在多径瑞利衰落信道中的信噪比盲估计算法。
This paper presents a blind algorithm to estimate the signal-to-noise ratio(SNR) of a communication signal in multipath Rayleigh fading channel .
采用平均最小自由欧氏距离估计误比特率，得到误比特率的封闭式表示，通过计算机模拟，在高信噪比情况下，这种估计方法与实际情况非常接近。
The bit error probability is estimated by the minimum average Euclidean distance. Through simulation, it is shown that the estimation is usually very accurate at high signal-to-noise ratio.
并采用新的相位估计方式估计含相位噪声的载波相位，提升了该条件下的环路信噪比。
With improved phase estimation method, a carrier signal phase with phase noise can be estimated, while loop SNR also increases.
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