ID	原文	译文
53787	但其在没有任何认证和加密的情况下广播消息，信息可能会被恶意伪造或修改。	However, it broadcast messages without any authentication and encryption, and the information may be maliciously forged or modified.
53788	本文介绍了两种基于1DCNN-BiLSTM的网络模型，	This article introduced two network models based on 1 DCNN-BiLSTM.
53789	此模型根据ADS-B时域采样数据提取真实信号与欺骗信号的特征并识别出欺骗信号。	This model extracted the characteristics of the real signal and the spoofed signal based on the ADS-B time-domain sampling data and identified the spoofed signal.
53790	在航迹较短时，该模型能提取ADS-B信号详细的时间特征信息;	When the trajectory was short, the model could extract the detailed time feature information of the ADS-B signal;
53791	经过仿真实验，1DCNN-BiLSTM网络与只具有时间特征提取的网络相比，例如DNN和LSTM，有更好的检测效果。	After simulation experiments, the 1 DCNN-BiLSTM network has a better detection effect than the network that only has time feature extraction, such as DNN and LSTM.
53792	传统多假设跟踪(Multiple Hypothesis Tracker，MHT)算法假定杂波强度先验已知，	The traditional multiple hypothesis tracking(MHT) algorithm assumes that the clutter intensity is known a priori.
53793	在未知杂波的观测场景中，杂波强度误差将导致数据关联的准确性急剧下降。	In the observation scene of unknown clutter, the clutter intensity error will lead to a sharp decline in the accuracy of data association.
53794	针对这一问题，本文提出一种基于核密度估计(Kernel Density Estimation，KDE)的在线杂波估计MHT算法。	To solve this problem, this paper proposes an improved MHT method with clutter estimation based on kernel density estimation(KDE).
53795	首先利用核密度函数拟合未知的杂波密度函数，并自适应地估计出该时刻波门内的杂波强度;	Firstly, the kernel density function is used to fit the unknown clutter spatial distribution, and the clutter intensity in the gate at that time is estimated adaptively;
53796	然后利用杂波强度估计值计算假设航迹的得分函数，提高了数据关联的准确性和目标跟踪的稳定性。	then the score function of the track hypothesis is calculated by using the obtained clutter intensity, which improves the accuracy of data association and the stability of target tracking.