多模式运动估计使h . 264比其他视频编码算法具有更高的编码效率，但同时也使计算复杂度明显提升。
Motion estimation was introduced by H. 264 video coding standard with multiple block sizes to achieve a considerably higher coding efficiency than other video coding algorithms.
这种估计方法不需要利用任何训练序列或导频信号，进一步提高了系统频带利用率，降低了计算复杂度。
This estimation algorithm doesn't need any training sequences or pilot signal, therefore improves band efficiency and lower computational complexity.
该方法不涉及运动估计和运动补偿，复杂度低。
This method does not involve motion estimation and motion compensation, thus the computational complexity is low.
在那些同样的社会，波斯人同样根据估计是一个更加远古的文化复杂度，建立起的自己的权威。
And in those same societies, Persians also commanded an authority of their own, based on a supposedly more ancient cultural sophistication.
理论分析和仿真表明该算法在保证估计精度的同时，可显著降低大频偏估计的计算复杂度。
Numerical analysis and simulations show that this algorithm reduces the computational complexity significantly for the estimation of large frequency offset while maintains a good performance.
无线OFDM系统中基于导频辅助的信道估计必须折衷考虑算法性能与算法复杂度。
The tradeoff between performance and complexity must be taken into account in channels estimation algorithm of wireless OFDM systems.
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.
无线通信中应用最大似然序列估计，其时延和计算复杂度是必须解决的两个问题。
Delay and computational complexity are two problems to be solved when Maximum Likelihood Sequence Estimation (MLSE) is used in wireless communication system.
论文研究了基于多径时延跟踪的信道估计方法，并提出了一种低复杂度的多径时延跟踪方法。
We investigate the channel estimation algorithms based on tracking multipath time delay, a low complexity multipath time delay estimation method is proposed.
与传统解码的算法不同，该算法无需在发送端进行信道相关矩阵的估计和预编码，降低了发送端的编码复杂度。
Compared to the traditional decoding algorithms, the proposed scheme is no need to estimate the correlation matrix of the channel and pre-code at the transmitter, and its coding complexity is reduced.
酉MUSIC算法可以降低计算复杂度，提高方位估计性能。
The unitary MUSIC algorithm can reduce the computational complexity, improve the performance of bearing estimates.
该方法不涉及运动估计和运动补偿，复杂度低。
The method has a low complexity and will not be concerned with motion estimation and motion compensation.
新算法能使运动估计的计算复杂度大幅降低。
Using the new method, the complexity of computation involved in motion estimation can be reduced sharply.
仿真结果表明，在增加有限复杂度的条件下，这两种方法都有效的提高了信道估计的准确性，并改善了系统误码性能。
Simulation results show that within the limited increase of conditions complexity, both algorithms are effective to improve the accuracy of channel estimation and improve BER performance.
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。
In this paper, a novel frequency synchronization estimation algorithm is provided to achieve carrier frequency capture and tracking.
理论上给出了算法的流大小的无偏估计，相对误差的上界以及时间和空间复杂度。
Unbiased estimation of flow size, the upper bound of relative error and the time and space complexity are deduced theoretically.
该方法复杂度低，并可弥补常规方法仅采用单条最大能量谱线进行参数估计的不足。
The scheme has low complexity and can overcome the shortcomings of common methods which adopt only the single spectra line having maximum energy to estimate single tone jamming parameters.
而经改进的MC算法计算复杂度虽降低了，但其估计性能却大大下降。
Although the computational complexity of the improved MC algorithm is lower than MLE algorithm, the timing estimation performance of MC algorithm greatly degrades.
试验结果证明，该算法能够将计算复杂度降低到快速全搜索运动估计算法的3%，而PSNR和码率几乎与快速全搜索算法得到的结果相当。
Experimental results show that our algorithm can reduce the computational-complexity to 3% of fast full search motion estimation algorithm, with negligible PSNR loss and bit rate increase.
本文提出了一种低复杂度的符号定时估计，利用一个训练帧来实现同步。
In this paper, a novel symbol timing estimation algorithm is presented which realizes symbol synchronization by using a symbol.
理论分析和实验结果证明估计算法是稳健、可靠、有效的且计算复杂度小。
Theoretical analysis and experimental results prove that the estimation algorithm is robust, reliable, efficient and the computational complexity is limited.
通常的编码协作采用相干检测方式，要求精确的信道估计，从而增加了系统实现复杂度。
Coherent detection is always used in coded cooperation system, but it needs accurate channel estimation, which increases the system complexity.
在基于时间的无线定位系统中，时间估计算法的精度和复杂度是衡量系统性能的关键因素。
In the Time-based Radio Location system, the precision and complexity of the time estimation algorithm are the key factors that affect the system performance.
然而这些新技术的使用大大增加了H . 264编码器运动估计的复杂度和计算负载。
The new features increase the complexity and computation load of motion estimation greatly in H. 264 encoder.
ILS算法具有噪音参量估计准确度高、收敛速度快和计算复杂度低等优点。
The ILS algorithm had the strength of accurate estimation of FPN, fast convergence rate and low computational complexity.
该算法基于互功率谱估计，具有算法复杂度低、精确度高、适用频率范围广等优点。
Based on the cross-power spectrum estimation, the algorithm has the advantages of lower complexity and better precision over wide frequency band.
算法具有噪声参数估计精度高、收敛速度快和计算复杂度低等优点。
S-R algorithm has the advantage of accurate estimation of FPN, fast convergence rate and low computational complexity.
从接收机复杂度和性能要求出发，导频辅助估计器为较常用的方法。
The latter is in common use while considering the complexity of the receivers and performance of the systems.
由于LS算法不依赖于信道统计特性和较低的计算复杂度，本文最终选用了LS信道估计算法和DFT插值算法。
Because the LS algorithm is independent of channel statistical characteristics and has low complexity, LS channel estimating algorithm and DFT interpolating algorithm are chosen.
最后一个实验课提供一些对估计专题的工作量和复杂度的指导。
The last Lab provides some guidance to the evaluation of project size and complexity.
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