Incoherent direct sequence spread spectrum receiver synchronization system, method, device and medium

• Main Authors: MAO YUANHANG, LI XIN, BAO DAZHI, XING SIRUI
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention provides an incoherent direct sequence spread spectrum receiver synchronization system, method and device and a medium. Relates to the technical field of satellite communication. The system is suitable for a high-dynamic low-signal-to-noise-ratio scene and comprises a preceding-stage signal processing module, a Doppler frequency and code phase capturing module and a tracking and bit synchronization module. The system and the method are suitable for a low signal-to-noise ratio condition in a high dynamic scene, and can be developed based on an FPGA development board. The system and method are used for solving the problems that an existing algorithm is poor in capture performance under the low signal-to-noise ratio and an existing receiver cannot work in a high-dynamic low-signal-to-noise-ratio environment. 本发明提出一种非相干直扩接收机同步系统、方法、设备及介质。涉及卫星通信技术领域。所述系统适用于高动态低信噪比场景，所述系统包括前级信号处理模块、多普勒频率及码相位捕获模块和跟踪及位同步模块。该系统和方法适用于高动态场景下低信噪比条件，并能够基于FPGA开发板进行开发。所述系统和方法用以解决现有算法低信噪比下捕获性能差以及现有接收机无法在高动态低信噪比环境下工作的问题。