Single DSP Hardware Design in Real-Time Multi-constellation Satellite Navigation Receiver

Traditional satellite navigation receivers usually depend on FPGA chips or ASIC chips, which lack flexibility and multiple constellation support. The paper presents a single DSP multi-constellation satellite navigation receiver hardware design method, and discusses signal sample, buffer and output technology. Furthermore, multi-constellation task scheduler is also discussed. Based on TMS320C6416, a prototype of real-time multi-constellation satellite navigation software receiver is implemented. The experimental results show that the receiver platform implemented in this scheme could realize the functions of the real-time receiver very well, and can be further extended to multi-constellation navigation receiver later.