The rule made officially by Swiss says, that first-rate watch error is not beyond 10 seconds.
瑞士官方制定的规则说优等品机械手表每日误差应控制在10秒以内。
For the first time, the performances of hybrid ARQ based on RS code over Gilbert bursty channels are analyzed in this thesis, from which the important performance measures such as packet error rate, average transmission times, throughput efficiency and transmission delay are formulated.
文中首次对基于RS码的混合型ARQ在Gilbert突发信道上的性能进行了理论分析，并导出了系统重要性能指标，如分组错误率、平均传输次数、ARQ系统的通过效率、平均传输时延等的解析表达式。
The test results show that the system's maximum error rate of pure water buoyancy test is less than 1%.
试验结果表明，该系统在纯水中浮力测试的最大误差小于1%。
It can transmit more information through re-transmit scheme and improve the performance of Error Correction Code by lowering rate of the ECC.
与普通的ARQ方案相比，该重传方案不单能够通过重传获得更多的信息，而且能够通过降低纠错码的码率来提高纠错码的性能。
This technique can improve the availability of frequency band, anti-jamming capability between codes, error correction and error bit rate. The coding formula of Turbo code is derived in PPM mode. The technique was simulated with Matlab software. The simulation result shows that this solution can reduce the bit error rate and improve the efficiency of the whole communication system.
此方法不仅能提高频带的利用率，也能提高码间抗干扰能力、纠错能力和降低误码率，并对PPM调制模式下的Turbo码译码公式进行了推导，最后利用Matlab软件实现了该技术的仿真，仿真结果表明：在紫外激光通信中采用PPM和Turbo统一调制编码的技术能进一步降低系统的效率和误码率。
By introducing the rotating angular rate from the body frame to the navigation frame instead of the pose matrix, the rotating axis could be pointed to the entire three dimensional spaces in the navigation frame. The rule of SINS error states had been gained for the body frame rotating arbitrary orientation.
通过引入弹体坐标系与导航坐标系之间的旋转角速率代替姿态矩阵，使导航坐标系中的转动坐标轴可以指向三维空间的任意方位，得到了弹体绕任意轴旋转两位置对准时系统状态变量误差的变化规律。
The analysis in this paper evaluates the bit error rate degradations due to imperfect channel estimation at the receiver.
分析本文评价了误码率退化由于不完善的信道估计在接收。
This paper quantifies the effect of imperfect channel estimation on multiple antenna selection system. And the symbol error rate performance is derived using two different methods. The simulation results show that the theoretic result matches the system performance with whether ideal or noisy channel information.
本文给出了非理想信道估计下天线选择系统的性能，分别使用两种不同的方法得出了其误符号率性能，仿真结果表明，无论在理想或有误差的信道信息下，本文所提出的理论结果都逼近于实际的系统性能。
Third, original arguments of tide constituents are expressed by Doodson numbers, for simplification of calculation, the present method uses angular rate to express arguments, omitting the second order term and the third order term. This maybe introduces error.
第三、原始的天文相角是通过杜德森数表示的，而为了简化计算，现有的调和分析方法是通过角速度来表示天文相角的，省略了时间的二次项和三次项，这必然会引起误差。
A clustering procedure, based on Bayesian minimum error rate of the discriminant, the effect quite good.
详细说明：一个聚类程序，基于贝叶斯最小错误率的判别，效果挺好的。
The simulation results show SC-FDE is an effective approach to combat ISI and reduce bit error rate.
仿真结果表明，频域均衡技术能够很好的对抗码间干扰，降低误码率。
Considering the pointing errors of transmitter and receiver, a model for optimizing optically preamplified satellite optical communication systems are established according to average bit error rate or burst error rate, and the optimal antenna parameters are given.
同时考虑发射机、接收机的瞄准误差，建立了前置光放大接收卫星激光通信系统链路的优化模型，根据该模型可按平均误码率或突发误码率要求对通信系统天线参数进行优化设计，给出了光学天线的最优参数。
The convergence rate and stational error of the proposed algorithm are compared with those of other constant modulus algorithms by computer simulation.
在最后的数据仿真中，与基本CMA等算法在收敛速率、稳态误差等方面进行了对比分析，验证了新算法的有效性。
A trial-and-error solution is necessary to calculate the average rate of interest earned on the company's outstanding investment in the project.
需用试差法来计算公司在项目未回收的投资上所能获得的平均利率。
Based on this optical label swapping system, several main parts are studied in the paper including the influence of MZM extinction ratio, SOA`s insert current, input power of receiver module, pumping power, and probing power on bit error rate and relationship between wavelength conversion and conversion efficiency.
研究表明，不同因素对误码率的影响是相互制约的，要全面提高光标记系统的性能，必须综合考虑各方面的因素。所以存在最佳的MZM消光比、半导体光放大器偏置电流、泵浦功率、探测功率使得误码率最小。另一方面，当探测光波长接近泵浦光波长的时候，转换功率达到最大值。
In general, the overall error rate was high (greater than 35%).
但整体而言，总误差率偏高，达到35%以上。
In this paper, an efficient table look-up method is proposed by using the relationship among bit-error-rate, bits and signal-to-noise.
本文利用多载波通信系统的误码率、比特位数与信噪比之间的关系提出了性能良好的快速表查询法。
Objective To research the influence of electrical energy quality descend on error rate and safety traffic of medical equipment.
目的研究电能质量下降对医疗设备的故障率和医疗设备安全运行产生的影响。
A radial basis function network was constructed with the boundary vectors as the network centers to approximate the class-conditional probability density function of each class of objects in the training data set. The classification conformed to the minimum error rate of the Bayesian decision rule.
对每一类数据建立一个径向基函数网络，以相应类的边界向量作为中心，通过训练以RBF网络来估计样本的类条件概率密度，并采用基于最小错误率的贝叶斯决策来实现分类。
Survey the bit error rate performance of S-CDMA and A-CDMA using 7 rank gold code under three different modulation schemes, BPSK, QPSK and 16QAM through computer simulation and give some important result. Present the SCDMA upstream schemes. Analyze their channel capacity and summarize the parameters of physical dependent layer.
分析了扩频序列及S-CDMA和A-CDMA的性能，采用Gold码作为码分扩频序列，通过计算机仿真得到S-CDMA及A-CDMA在三种不同调制方式，BPSK、QPSK、16QAM下的误比特性能，给出了一些重要结论。