针对超短波通信,提出WDTP协议,可减小数据通信误码率。
To reduce the errors of digital communication, the WDTP (Wireless Data Transmission Proof) agreement was proposed for ultrashort wave communication.
本论文主要介绍数字光纤通信系统基本组成,性能指标及其测试,主要是光通信误码率的测量。
This thesis introduces the digital fiber optic communication system's test basically mainly, it is mainly the ber measurement of the fiber optic communication system.
本文阐述光纤数字通信中部分响应信号的特点,和适当地设置信号电平使平均误码率达到最小的方法。
This paper describes the signal characteristic in optical fiber communication systems, and the way to set the signal levels appropriately for the minimum average error rate.
GPON中应用FEC可以减小接收端的误码率,增加通信的可靠性。
FEC in the GPON can reduce the error ratio at the receiver and increase the reliability of communication.
为了克服移动通信带来的干扰,提高误码率,提出了软件抗干扰措施,完成了地面系统的故障信息管理。
In order to overcome the interference and reduce code error probability, we take the measure to improve it in software and convenient for the default informations management.
讨论了多发射天线OFDM系统中有限比率反馈对通信系统误码率的影响。
The effect of finite rate feedback in multiple-antenna OFDM systems on communication performance is discussed in this paper.
在经典自适应波束形成算法中,常采用均方误差准则,但对于一个通信系统来说,误码率是评价其性能的一个很重要的参数。
Mean square error approach is often adopted in classical adaptive beam-forming algorithm, nevertheless, the bit error rate is one of the most important parameters in a communication system.
这对于在移动数字通信中,改善由多径效应引起的误码率增高而严重影响通信的传输质量,具有非常重要的指导作用。
It is an important action to improve the propagation quality of communication suffered from rising the BER on multipath propagation in digital mobile radio communication.
大气激光通信系统的误码率不仅受到振动时振幅大小的影响,而且受到光学发射天线孔径的影响。
The bit error rate of an atmospheric laser communication system is affected by not only vibration amplitude but also the aperture of optical transmitting antenna.
在通信过程中,为了要获得比较低的误码率,需要选择合适的实时差错控制方式。
We need choice appropriate real-time error control code in order to get low code error ratio in the process of the communication.
在弱湍流情况下,基于自适应最小均方滤波器的系统误码率(BER)低于10 -8,可以满足网络通信的要求。
The bit error ratio (BER) of the system over weak turbulence based on adaptive filter is below 10 ~ (-8), which can satisfy the communication requirement.
然后对接收功率及比特差错率进行了计算分析,结果表明通信链路参数设计满足比特误码率要求。
Subsequently, the received power and bit error ratio are calculated, the results show that the parameters design of communication link can meet the demand of the bit error ratio.
在通信系统中,引起误码率提高的一个重要原因是系统中同轴连接器的电接触故障。
It is found that electric contact failure of coaxial connector is one of the most important factors causing high error code rates in communication systems.
误码率模型是水声扩频通信系统性能的关键指标之一。
The error rate model is one of the key indexes of underwater acoustic spread spectrum communications system.
通过研究几种发射脉冲的一次反射和二次反射的接收波形以及它们的误码率特性,研究了信道多径失真对室内无线光通信的影响。
The paper researches the received waveform and the characteristic of BER in one refection and twice refection, studies the influence of multipath distortion on the transmitted pulse.
理论推导和仿真结果表明,COFDM调制技术适合在高压电力线载波通信中使用,在明显的提高数据传输率的同时降低误码率并增强系统可靠性。
Proved by the theoretic deriving and simulation result, the COFDM modulation technology is well suitable for high voltage PLC with a high transmission speed, low BER and high reliability.
各系统的仿真最后用通信系统的检测手段进行误码率分析和眼图分析,并对各系统做了总结和评价。
At the end of simulation, it use examining means of communication system as BER (bit error rate) analysis and eye diagrams analysis, then gives a summarize and a comment to the system.
本文主要围绕协同通信中的协同节点(中继节点)的选择问题进行了研究,主要分析了系统的误码率。
This thesis focus on how to selection collaborative communication nodes (relay nodes) carried out researching, and focus on the analysis of the BER.
本文给出了群变换方法构成的BCH编码在超宽带通信系统中的误码率仿真结果。
In this paper, we give the simulation results of bit error rate based on group counterchange method for BCH codes in UWB communication system in the condition of AWGN channel.
并结合具体的卫星移动通信信道的复杂时变特性,对SCTCM在该信道下的误码率(BER)性能进行了理论分析,给出了误码率的一个上界。
According to the complicated time varying property of the satellite mobile communication channel, the BER performance of SCTCM in this kind of channel is analyzed and an upper bound is given.
计算机仿真结果表明,RS编码和交织技术非常适合空间光通信信道,能大大降低系统的误码率。
The results of simulation show that RS coding and interleaving are fit for the channel of space laser communication, and can largely decrease bit error rate(BER).
针对通信系统中非线性均衡器的计算复杂度问题,提出一种基于最低误码率准则的多级软判决均衡器。
A multistage soft decision equalizer based on minimum bit error rate principle is proposed in this paper for reducing computational complexity in communications.
误码率和非周期通信将不同程度延长系统循环时间。
The error bit rate and aperiodic commission may delay the system cycle time differently.
为满足在高误码率的窄带信道上进行语音通信的需求,研究了一种适用于甚低速率语音通信的抗误码参数估值算法。
An error resilience scheme for very low bit rate speech coding was developed for speech communications on narrow band channels with high bit error rates.
在信息截获的应用背景下,通信信道一般具有高误码率的特点。
Under the background of information intercepting, the communication channel generally has the characteristics of the high error rate.
位同步信号本身的抖动、错位会直接降低通信设备的抗干扰性能,使误码率上升,甚至会使传输遭到完全破坏。
Jitter and misplace of the bit synchronization signal will reduce the anti-interference performances of communication equipment directly, also increase bit error probabaility.
大气湍流引起的光强闪烁会严重影响大气激光通信系统的性能,使误码率增加。
But because of the influence of atmosphere, the scintillation caused by the atmosphere turbulence influences performance characteristics (bit error ratio) of the communication of system seriously.
在空间光通信系统中,由于卫星平台的振动,使得光发射机发生摆动,从而对通信系统的误码率产生影响。
In a system of space optical communication, it will influence to bit error rate of the communication system when the optical transmitter wiggles as vibration of the satellite's platform.
实践证明,以扩频调制、解调为基础的电力线载波通信方案可获得较高的通信速率和较低的误码率。
It has been proved in reality that a PLCC based on spreading spectrum modulation and demodulation can achieve a higher communicating rate and a lower bit error rate.
实践证明,以扩频调制、解调为基础的电力线载波通信方案可获得较高的通信速率和较低的误码率。
It has been proved in reality that a PLCC based on spreading spectrum modulation and demodulation can achieve a higher communicating rate and a lower bit error rate.
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