I. Introduction
Synthetic aperture radar (SAR) [1] ship detection is an essential branch of SAR image interpretation. For ship detection tasks in low latency requirements scenarios such as maritime traffic safety, the time, and communication bandwidth costs of transmitting SAR data back to the ground station for processing are too high. Therefore, directly interpreting SAR images on unmanned aircraft or satellite processors will significantly improve efficiency. However, the storage space and computing power of these unmanned platforms are limited, which cannot meet the deployment of deep neural networks with large parameter quantities. Therefore, researchers have begun to explore models with lighter and lower power [3].