scholarly journals A new periodic fractal parasitic structure to design the circularly polarized microstrip antenna for the satellite navigation system

2021 ◽  
Author(s):  
Kun Wei ◽  
Jun‐Long Wang ◽  
Rui Xu ◽  
Xia Ai
Keyword(s):  
Navigation System ◽  
Microstrip Antenna ◽  
Satellite Navigation ◽  
Circularly Polarized ◽  
Satellite Navigation System

Dual-band circularly polarized antenna design for satellite navigation system

2015 ◽  
Author(s):  
Chaoyi Cheng Chaoyi Cheng ◽  
Chuanfang Zhang Chuanfang Zhang ◽  
Cheng Jin Cheng Jin ◽  
Chunbo Luo Chunbo Luo
Keyword(s):  
Navigation System ◽  
Satellite Navigation ◽  
Antenna Design ◽  
Dual Band ◽  
Circularly Polarized ◽  
Satellite Navigation System

scholarly journals Research on BeiDou Satellite Positioning Algorithm Based on GPRS Technology

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Li Yang ◽  
Yunhan Zhang ◽  
Haote Ruan
Keyword(s):  
Real Time ◽  
Navigation System ◽  
Satellite Navigation ◽  
Positioning Systems ◽  
Time Dynamic ◽  
Satellite Navigation System ◽  
Satellite Positioning ◽  
Error Elimination ◽  
Wireless Module ◽  
Positioning Algorithm

The BeiDou Satellite Navigation System of China can provide users with high precision, as well as all-weather and real-time positioning and navigation information. It can be widely used in many applications. However, new challenges appear with the expansion of the 5G communication system. To eradicate or weaken the influence of various errors in BeiDou positioning, a BeiDou satellite positioning algorithm based on GPRS technology is proposed. According to the principles of the BeiDou Satellite navigation system, the navigation and positioning data are obtained and useful information are extracted and sent to the communication network through the wireless module. The error is corrected by establishing a real-time kinematic (RTK) mathematical model, and the pseudorange is calculated by carrier phase to further eliminate the relativistic and multipath errors. Based on the results of error elimination, the BeiDou satellite positioning algorithm is improved and the positioning error is corrected. The experimental results show that the positioning accuracy and efficiency of the algorithm can meet the actual needs of real-time dynamic positioning systems.

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