误比特率

Exact formulae for the end-to-end average bit error rate and average number of connected hops in the communication route are deduced separately for the interfering and noninterfering environments.

本文在基于网络节点均匀分布的情况下，对AdHoc传感器网络的连接性进行了理论计算，在无干扰和有干扰环境下分别得出了通信路由中端到端平均误比特率和平均连接跳数的精确表达式。

Simulations show that the proposed scheme has a better performance than that of the traditional scheme when the channel information is not perfectively known at transmitter. And the scheme is obviously robust when the uncertanty of channel information changing.

仿真结果表明：当发射端获得的信道信息不准确时，提出的算法表现出比传统特征波束成形算法更低的误比特率，并且当信道信息的不确定程度变化时，提出算法的性能有很好的鲁棒性。

Simulations show that a sectored WCDMA system can be of better SINR and BER performance when the systems are of large number of users.

仿真结果表明当系统信道被大量用户占用时，分扇区WCDMA系统仍能够获得较好的信干比和误比特率。

We then analysize the BER'S performance of a system with integrated voice and video traffics.

最后，对综合话音、图像业务在不同信道模型下的误比特率性能作了分析。

At the same time,the fixed threshold shifting is divided according to different combination modes of coding rate and modulation format.

最后分析了在三种常见的信道下，所提方案的误比特率性能和系统吞吐量。

Simulation results also show that on the condition of same system throughput and concatenation of channel code, the proposed FSTBC-CDMA system has lower Bit Error Rate than those low-rate and full-diversity space-time block coded CDMA system.

仿真结果表明在相同系统容量和级联码的情况下，所给系统比相应的满分集空时编码CDMA系统有着低的误比特率。

This approach is able to maintain fast system operation and good decoding capability by only using competitors and adders.

该方案只用比较器和加减法，就能在保证Turbo码低误比特率的前提下，有效降低系统延时和译码复杂度。

The Bit Error Ratio of the system is analyzed with the method of pilot symbol assisted modulation. Also the simulation result of the BER is provided and shows that the simulation and the analytical result are almost the same.

通过采用导引符号辅助相干解调进行信道估计的方法，给出了二维扩频系统在单音干扰环境中的误比特率分析结果，并对理论分析进行了仿真。

Based on the oversampling of OFDM frequency response, this paper proposes a method called LS+LPF.

利用在OFDM系统中信道的频域响应是过采样的特性，提出了LS+低通滤波器的方法，将其与带低通滤波器的sisin(x/x插值法、cubic插值法和Winner插值法进行了信道估计的均方误差和无编码的误比特率的仿真结果进行了比较。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。