Fig. 1. Structure of LSTM network unit

Fig. 2. Process of LISTD algorithm

Fig. 3. Preprocessing block. \begin{document}$(\rm a)$\end{document} Block process; \begin{document}$(\rm b)$\end{document} Filter core

Fig. 4. LSTM detection block

Fig. 5. Simulation image

Fig. 6. LISTD detection results of sinusoidal moving target

Fig. 7. Detection result. \begin{document}$(\rm a)$\end{document} False alarm scene; \begin{document}$(\rm b)$\end{document} Mistaken detection scene; \begin{document}$(\rm c)$\end{document} Missing alarm scene; \begin{document}$(\rm d)$\end{document} Correct detection scene