ID |
原文 |
译文 |
11934 |
借助时频二维扩频矩阵解决普通单载波码分与频分多址(single carrier code and frequency division multiple access,SC-CFDMA)系统中扩频因子与子带宽度之间的矛盾; |
Using the time-frequency solve common two-dimensional spread spectrum matrix code points and single carrier frequency division multiple access (single carrier code and frequency division multiple access, SC - CFDMA) spreading factor in the system and the contradiction between the subband width; |
11935 |
构建了SC-2DCFDMA系统发送端与接收端的数学模型; |
Build the SC - 2 dcfdma system mathematical model of sending end and receiving end; |
11936 |
分析了其在加性高斯白噪声信道和频率选择性信道下的理论误码率。 |
Analyzed in additive white gaussian noise channel and frequency selective channel under the theory of error rate. |
11937 |
仿真结果表明,理论与仿真误码率曲线吻合; |
The simulation results show that the theory and simulation error rate curve; |
11938 |
在相同的扩频因子条件下,SC-2DCFDMA系统具有比SC-CFDMA系统更窄的用户子带宽度和更优的误码率性能; |
Under the condition of the same spreading factor, SC - 2 dcfdma system has a narrower than SC - CFDMA system user belt width and better ber performance; |
11939 |
在多用户场景下,虽然信道的频率选择性会造成频域扩频码的正交性损失。 |
In a multi-user scenario, although the frequency selective channel would cause loss of orthogonality of frequency domain spread spectrum code. |
11940 |
但这种损失可由时域扩频码的正交性来弥补,从而使得SC-2DCFDMA系统的多用户性能优于SC-CFDMA系统。 |
But the losses can be made of the time domain to compensate the orthogonality of the spread spectrum code, so as to make the SC - 2 dcfdma multi-user performance of the system is better than that of SC - CFDMA system. |
11941 |
指挥、控制、通信、计算机、情报、监视和侦察(command,control,communication,computer,intelligence,surveillance and reconnaissance,C4ISR)模型是作战仿真系统的中枢和灵魂,是作战仿真的重点和难点。 |
Command, control, communications, computers, intelligence, surveillance and reconnaissance (command, control, communication, computer, intelligence, surveillance and reconnaissance, C4ISR) model is the centre of the combat simulation system and the soul, is the emphasis and difficulty in operations simulation. |
11942 |
在分析作战仿真情报、监视和侦察模型中的传感器模型对于探测处理的建模需求基础上,提出了传感器模型探测处理的通用方法; |
On the analysis of the combat simulation model of intelligence, surveillance and reconnaissance of the sensor model based on the demand for detection process modeling, and puts forward the general method of sensor detection model processing. |
11943 |
介绍了所提方法的整体流程; |
Introduces the whole process of the approach. |