This work deals with the entire process of target detection and ranging by a sky-wave over-the-horizon radar (OTHR) computational model simulation. The different processing stages of the transmitted signal along its space–time trajectory from transmission to digital signal processing are modelled. With this simulation tool a moving target present over the sea can be detected according to a set of given initial conditions together with the ionosphere model inputs and the target electromagnetic model. Initial conditions as well as the modulation and filtering options among other parameters of the model can be set easily. The present work is intended to be a further contribution to OTHR studies, providing a user-friendly tool of easy application in order to improve a radar design, facilitate its implementation, as well as for debugging algorithms and signal processing techniques.

中文翻译：

---

天波超视距雷达仿真工具

这项工作通过天波超视距雷达（OTHR）计算模型仿真处理目标检测和测距的整个过程。沿着从传输到数字信号处理的时空轨迹对传输信号的不同处理阶段进行了建模。使用此仿真工具，可以根据一组给定的初始条件以及电离层模型输入和目标电磁模型，来检测海上存在的移动目标。可以轻松设置初始条件以及模型其他参数中的调制和滤波选项。本工作旨在为OTHR研究做出进一步贡献，提供易于使用的用户友好工具，以改善雷达设计，促进其实施，