ID 原文 译文
24605 结果表明，在一个 3 m × 3 m × 3 m 房间中安装有 16个 LED 光源作为接入点，采用所设计的自由曲面光学发射天线，网络覆盖区域的光信号分布均匀度达到了 0.8 以上，同信道干扰基本消除，平均信干噪比为 12.6 dB，系统具有较好的误码率性能，能够有效地保证可见光蜂窝网的通信质量。 It is demonstrated that in a 3 m × 3 m × 3 m room with 16 LEDs using the designed optical antenna, the uniformity of light distribution in the light network converage reaches 0.8。 With the elimination of co-channel interference, the average signal to interference and noise ratio (SINR) is 12.6 dB, which can effectively improve the bit error ratio (BER) and ensure the communication performance of visible light cellular networks.
24606 大气湍流引起的光束闪烁和抖动，将使光通信接收机焦平面上点扩散函数（Point Spread Function, PSF）随机起伏和漂移，导致光电探测器无法有效覆盖信号光场。 The light beam flicker and jitter caused by atmospheric turbulence will cause the point spread function (PSF) on the focal plane of the optical communication receiver to randomly fluctuate and drift, causing the photo detector to fail to effectively cover the signal light field.
24607 针对自由空间光通信（Free Space Optical Communications，FSO）系统在多模高斯背景光噪声场和接收光信号能量效率的限定下最小化系统误码率的问题，提出了一种适用于强度调制/直接检测（Intensity Modulation/Direct Detection, IM/DD）的自适应光电阵列信号处理算法。 In order to minimize the bit error rate (BER) of free space optical communication (FSO) system under the limitation of multi-mode Gaussian background light noise field and received optical signal energy efficiency, an adaptive photoelectric array signal processing algorithm suitable for intensity modulation / direct detection (IM / DD) is proposed.
24608 该方法采用合并阵元路径法计算不同阵元数条件下的系统误码率，并以最小误码率为判决准则，优化接收光电阵元序列。 In this method, the combined array path method is used to calculate the system BER of different array elements, and the minimum BER is used as the criterion to optimize the received photoelectric array element sequence.
24609 分析和仿真结果表明，在相同大气湍流和背景光噪声条件下，相比于现有的光电阵列处理算法，新方法选取适当的合并阵元数，在极大降低系统计算复杂度的同时，系统性能损耗几乎可以忽略。 The analysis and simulation results show that under the same atmospheric turbulence and background light noise conditions, compared with the existing photoelectric array processing algorithm, the new method can greatly reduce the computational complexity of the system, while the system performance loss can be almost ignored.
24610 针对光学相机通信（Optical Camera Communication，OCC）链路收发两端不同步和相机帧间间隔等因素引起 OCC 链路数据丢失的问题，本文在分析相机接收机卷帘快门工作机制的基础上，研究了光电二极管(Light Emitting Diode，LED)-相机 OCC 链路的基本工作原理，以及相机像素行数、像素行读取时间、拍摄帧速率、拍摄角度姿态等因素对 OCC链路数据传输速率、链路丢帧率等参数的影响，并针对 OCC链路的特点，设计了一种新型的适用于 OCC链路的数据帧结构。 Aiming to fix the data loss problem of optical camera communication (OCC) data link resulting from the lack of sync between the camera and the LED signal lamp, as well as the gap time between every two consecutively captured pictures, the fundamental principle of LED-camera based OCC data link, camera parameters like pixel row number, pixel read out time, frame rate and shooting angle are analyzed in detail in this paper. Based on the characteristics of the OCC data link, a new data frame structure is proposed in this paper.
24611 通过对比分析发现，使用该数据帧的 OCC 链路，可以有效地解决收发端不同步和相机帧间间隔引起的 OCC 链路数据丢失的问题，优于常用的交错 Hamming码和 Raptor码帧结构。 When compared to the related data frame structure like interleaved Hamming coding and Raptor coding, the proposed date frame structure has a higher data transmission rate, and has the capability to fix both the inter-frame and intra-frame data loss problems.
24612 最后，本文设计搭建了相关的 OCC 链路测试平台，通过对比数字仿真结果和实际测量结果，验证了理论分析的有效性。 Numerical and measurement results both prove the validity of the theoretical analysis, finally.
24613 为了建立同频干扰条件下的混合射频/自由空间光（Radio Frequency/Free Space optical, RF/FSO）航空中继通信系统链路精确模型，提出多用户分集（Multi-User Diversity, MUD）的航空平台 RF/FSO 混合链路性能分析方法。 In order to establish an accurate model of the hybrid radio frequency/free space optical (Radio Frequency/Free Space optical, RF/FSO) aviation relay communication system link under the condition of co-channel interference, amulti-user diversity (Multi-User Diversity, MUD) airborne platform RF/FSO hybrid link performance analysis method is proposed.
24614 以独立且同分布的 Nakagami-m 衰落信道表征射频（Radio Frequency, RF）用户信号和同频干扰（Co-Channel Interference, CCI）信号信道；构建了指数 Weibull 分布大气湍流与 Rayleigh 分布指向误差的 FSO 信道传输模型； The independent and identically distributed Nakagami-m fading channel is used to characterize the RF user signal and the co-channel interference (Co-Channel Interference, CCI) signal channel, while the FSO link between relay to destination is assumed to be affected by Exponentiated Weibull distributed atmospheric turbulence and the Rayleigh distributed pointing error.