基于相关波形不变性的数据丢包检测方法  

Detection Method of Data Packet Loss Based on Correlation Waveform Invariance

作　　者：刘百峰[1] LIU Baifeng

机构地区：[1]中国人民解放军91388部队,湛江524022

出　　处：《现代导航》2024年第4期301-306,共6页Modern Navigation

摘　　要：针对数据采集处理系统中数据丢包检测问题,依据连续余弦信号自相关波形不变特性,提出一种基于相关波形不变性的数据丢包检测方法。该方法利用窄带数据自相关波形稳定性,通过对数据传输单元输出数据进行自相关处理求取数据相关波形,通过自相关波形差异化处理对该数据是否丢包实现检测。当数据传输单元输出数据存在丢包时,该数据由单码元调相变为多码元调相,致使数据带宽发生变化,进而引起相关波形发生变化,基于此,可对数据传输单元是否存在数据丢包实现检测和判决。理论分析和实验验证结果均证明了所述方法可行性和有效性。For the detection problem of data packet loss in data acquisition and processing system,according to the correlation waveform invariance of continuous sinusoidal signal,a detection method of data packet loss based on correlation waveform invariance was proposed.In the method,the packet loss of the data was detected according to the variation of the correlation waveform,the autocorrelation waveform of narrowband data was obtained by autocorrelation processing the output data of the data transmission unit.When the output data of the data transmission unit lose data packet,the data would change from single code phase modulation to multi-code phase modulation,that would change the data bandwidth and autocorrelation waveform.Based on that,the data packet loss can be detected and determined in the data transmission unit.Theoretical analysis and experimental results show that the method is feasible and effective.

关 键 词：数据传输 丢包检测 相关波形 

分 类 号：TN911.73[电子电信—通信与信息系统]