遗留系统、性能和其他QoS特性可能会阻碍使用最优的访问机制：不管是纯服务、硬编码连接或混合方法。
Legacy systems, performance, and other QoS attributes will tend to be constrained to use the most optimal access mechanism: whether pure services, hard-wired, or hybrid.
在所有系统之间使用Unicode编码模式将避免进行字符转换，并提高性能。
Using the Unicode encoding scheme between all systems avoids character conversion and improves performance.
利用这一模型，分析了包长、纠错编码方式的选取以及竞争窗口长度等重要参数的选取对系统性能的影响。
Using this model, we analyzed the influence of some important parameters, such as packet size, forward error correction coding scheme and contention window size, to the system performance.
考虑到ADSL线路环境中突发干扰对系统性能的影响，可以采用RS编码改善系统性能。
Since burstion interference in ADSL environment can degrade system performance, we can adopt RS code to improve system performance.
由于采用了这种前向差错控制（FEC）信道编码技术，使得CDMA系统具有了较好的抗远近效应性能。
The CDMA system attains the better performance of resisting near-far effective because of employing this forward error control (FEC) channel coding technology.
从几种不同差错控制方案的比较来看，采用分段编码和交织技术能有效地改善MB通信系统的性能。
Comparison of several different schemes of error control shows that the performance of MB communication systems can be effectively improved by using the technique of segmental coding and interleaving.
为了进一步提高编码系统性能，提出了有效的联合迭代译码技术和新颖的预译码技术。
In order to further enhance the performance of the coded system, effective joint iterative decoding technique and novel pre-decoding technique are proposed.
采用空时编码的发射分集系统的性能分析是当前移动通信研究领域的热点问题。
The performance analysis of the transmitted diversity system that adopts space-time code is a hot spot in research cycle.
在现代通信中，常常使用纠错编码技术来提高系统性能，其中卷积码由于其出色的纠错性能而得到了广泛使用。
In modern communication, Error-Correcting Codes are often used to improve the system performance, among which the convolutional code is adopted widely because of its excellent capability.
最后，介绍了MP3的编码算法，并对系统的性能和潜力作了总结和分析。
Finally, gives an introduction on MP3 encoding algorithm and makes the conclusion and analysis on function and potentiality of the system.
有损压缩的关键步骤之一是量化，量化性能好坏对整个图像压缩编码系统有很重大的影响。
Quantization is one of the key step of Lossy compression, the performance of quantization has great influence on the image compression coding system.
主要研究了空时编码系统在相关瑞利衰落信道和高斯噪声环境下的性能。
The performance of space-time channel coding scheme is discussed under a Rayleigh fading channel with spatially correlated fading amplitudes and an additive white Gaussian noise.
用复杂可编程芯片(CPLD)实现，并用于雷达数字光纤通信系统的信道编码，提高了时钟提取的性能。
The scheme can be implemented by using the CPLD chip, and used for the channel coder in a radar digital optic-fiber communication system and improving the features of clock extraction.
该系统具有动态加密性能好、运算速度快、实时性好、编码实现简单等特点。
The peculiarities of the system are dynamic encrypt, high speed of calculation, high real time control, and simply encode.
同时，我们通过结合功率分配和预编码，获得更好的系统性能。
In addition, power allocation is also considered to get higher performance.
评估的性能指标包括：播放连续性、启动延迟、跳转延迟、服务器负载、网络编码的依赖性、系统开销等。
The performance indexes to be investigated include playback continuity, startup latency, jump latency, server stress, dependence of network coding and system control overhead and so on.
JPEG2000是一种新的图像编码标准，它具有优良的压缩性能和很高的灵活性，而且系统功能比以前所有的图像压缩标准都先进。
JPEG2000 is the latest image coding system with excellent performance and higher flexibility, its function is in advance than any other standard.
运动估计是视频图像编码中运算量很大的部分，也是影响系统实时性能的瓶颈。
The computation in video codec mainly concentrates on motion estimation, which is the bottleneck of realization of real time video codec.
预编码是一种根据信道情况对发射信号进行预处理，从而提高MIMO系统性能的技术。
Precoding technology can improve the performance of MIMO system, by adjusting the transmit single according to the channel condition.
设计中选择了两优先级轮转仲裁算法，以提高系统性能；优化了状态机编码方式，以减小芯片面积和降低动态功耗。
In this design, a 2-level round-robin arbitration algorithm is chosen to improve system performance, and state machine coding style is also optimized to reduce chip size and dynamic power consumption.
针对分层空时编码技术缺少编码增益的问题，提出了将复数旋转码与分层空时编码技术相结合来提高系统的性能。
It presents a new scheme of combining complex-rotary codes and layered space-time code to improve the performance of systems based on the lack of encoding plus of layered space-time code.
分析了无编码情况下系统的性能。
系统中采用了锁相技术和地址编码，并采用间隙工作方式，使得本系统工作性能稳定，目标源一次充电可连续工作10天以上。
Phase lock oscillator, address coding and intermission mode are taken to stabilize the system and to promise the targets working period longer than 10 day.
针对MB - OFDMUWB系统的性能特征，基于理论分析系统的成对错误概率，获知编码增益和分集增益的计算公式，从而得到空时频编码方案的设计准则。
Aiming at the performance characteristics of MB-OFDM UWB, the formula for coding gain and diversity gain is worked out based on pairwise error probability of theoretical analyzing system.
结果证明，该文级联系统取得高出一般位交织编码调制系统2—6分贝的性能增益。
The results show that the proposed cascade system improves the performance gain by 2 to 6 dB compared to traditional BICM system.
本文从网络编码与协作通信系统的结合方案入手，对各种方案的系统性能进行了研究分析。
Starting with the combining methods of network coding and cooperative communication system, this thesis analyses the performance of all the methods.
数字视频监控系统的编码端负责图像的采集和编码，是数字视频监控系统中的关键设备，直接影响着整个系统的性能和质量。
The encoder end of DVRs, with responsibility for video capture and encoding, is the key part of DVRs and straightly affect the performance and quality of the whole system.
在MPEG -4编码系统框架中，为支持基于内容的编码性能，视频自动、半自动分割成为关键技术之一。
In the framework of the MPEG 4 coding system, the automatic or semiautomatic video sequence segmentation plays a key role in supporting the features of content based coding.
本文对JPEG2000系统的结构、特性以及其编码算法进行了分析，并给出JPEG2000与原JPEG标准的性能比较。
This paper analyzes the structure, features and coding algorithm of JPEG2000, and illustrates the JPEG2000 based on some comparisons with JPEG.
提出采用计算机模拟雷达图象作为标准国象来评估编码及系统的性能。
The radar images produced by computer simulation are proposed as standard images for estimating the performances of the codings and the system.
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