Hadiqa⋅ Abdugopur, Tan Le-Tao, Yu Tao, Xie Wen-Ke, Liu Jing, Shao Zheng-Zheng. Study of off-axis incident rotational speed measurement based on coherent synthetic vortex beamsJ. Acta Physica Sinica, 2024, 73(16): 168701. DOI: 10.7498/aps.73.20240655