bit error ratio中文什么意思

例句与用法

更多例句：  上一页  
1. In order to practice the sess communication system based on ar filter , the system must have the good performance of anti - jamming and multiple accessing . we analyze and simulate the ar - sess communication model , the important performance factors , the bit error ratio ( ber ) performance and the multiple accessing
   本文以ar自编码直接序列扩频通信方式为对象,讨论基于ar的自编码扩频通信系统( ar - sess )模型、影响ar - sess系统性能的重要因素、 ar - sess通信的信噪比和多址通信能力。
2. With the established rf front - end system simulation platform , adding the digital modulated baseband signal , this paper simulated the multifold digital modulated signal ’ s transmission , such as 2ask , qpsk , and 16qam . then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system . the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end
   随后在建立的宽带射频前端通用仿真平台上,加入基带数字调制信号,对多种数字调制格式的信号在该通用平台上的传输作了研究,模拟了2ask 、 qpsk和16qam等调制格式信号的发射与接收,研究了功率压缩和本振相位噪声对不同调制的误码率影响,实现了满足多种功能要求的宽带高性能综合射频前端的设计。
3. In mobile communication and high - speed wireless digital communication , multi - path , the finity of channel bandwidth and faultiness of the channel , lead to the bringing of intersymbol interference ( isi ) when data transfer . this is an important factor that degrades the performance of communication . however channel equalization technique can eliminate the isi and noise , it can also reduces the bit error ratio
   在移动通信及高速无线数据通信中，多径效应和信道带宽的有限性以及信道特性的不完善性导致数据传输时不可避免地产生码间干扰( isi ) ，成为影响通信质量的重要因素，而信道的均衡技术可以消除码间干扰和噪声，并减少误码率。
4. This article proposes the adaptive algorithm based on equal snr signal noise ratio , and applies it in adaptive ofdm system . in frequency selective fading channel , compared with the traditional ofdm system based on equal power allocation , the system outperforms in ber bit error ratio performance
   提出了一种基于最小平均误码率的自适应预处理算法，并将该算法应用于自适应ofdm系统，在频率选择性衰落信道条件下，与等功率分配的ofdm系统相比，误比特性能有了很大程度的提高。
5. The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power , this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment , and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain , not on chip power
   在干扰估计抵消滤波中,以往的非线性滤波要求干扰抵消滤波后扩频信号功率远大于残余噪声功率,进而假设码片判决的误码片率基本为零,这一要求对军用扩频通信是不利的,而且也不符合扩频通信利用扩频增益降低误码率的原则。