Design of Low-Cost GNSS Receivers for Time Transfer

This paper presents the design of a GNSS receiver device aimed at reducing hardware costs by using low-cost components, while maintaining high accuracy and comprehensive functionality.The receiver mainly consists of a GNSS signal reception module, a time interval measurement module, and a control and data processing module.The GNSS signal reception module is developed based on the Mosica-T module, the time interval measurement module is implemented with FPGA, and the control and data processing module is based on the Raspberry Pi platform.Test results show that, despite a significant reduction in hardware costs compared to traditional receivers, the device still maintains high accuracy, and the samples exhibit good consistency with one another.