TY - GEN
T1 - An improved model and simulator design of GNSS ocean reflected signals
AU - Li, Bowen
AU - Zhang, Bo
AU - Yang, Dongkai
AU - Qi, Yongqiang
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/18
Y1 - 2017/10/18
N2 - Global Navigation Satellite System-Reflection (GNSS-R) technology has attracted more and more attention in remote sensing and navigation field, especially in the ocean remote sensing. A feasible GNSS-R model based on reverse thinking method was proposed in our previous work. In this paper, in order to make the model applicable to the case of higher wind speed, we presented an improved GNSS-R model by expanding the range of time delay from 5 to 9 chips. A mathematical derivation was built to guide the design of the model. The number of reflected signals was 30 and the delay interval was 0.3 chip in the newly built model by optimizing the accuracy and computation of the model. Moreover, a GNSS-R software simulator was designed based on the improved GNSS-R model. The simulation reflected signals were compared with the experimental data collected in Yantai, Shandong province. Good agreement was found in the simulation results and experimental data, and the correlation coefficient between two correlation power curves was 0.9964, with the error in retrieving wind speed of 0.8 m/s. These results proved that the improved GNSS-R model and the simulator design can be applied in simulation of GNSS ocean reflected signals.
AB - Global Navigation Satellite System-Reflection (GNSS-R) technology has attracted more and more attention in remote sensing and navigation field, especially in the ocean remote sensing. A feasible GNSS-R model based on reverse thinking method was proposed in our previous work. In this paper, in order to make the model applicable to the case of higher wind speed, we presented an improved GNSS-R model by expanding the range of time delay from 5 to 9 chips. A mathematical derivation was built to guide the design of the model. The number of reflected signals was 30 and the delay interval was 0.3 chip in the newly built model by optimizing the accuracy and computation of the model. Moreover, a GNSS-R software simulator was designed based on the improved GNSS-R model. The simulation reflected signals were compared with the experimental data collected in Yantai, Shandong province. Good agreement was found in the simulation results and experimental data, and the correlation coefficient between two correlation power curves was 0.9964, with the error in retrieving wind speed of 0.8 m/s. These results proved that the improved GNSS-R model and the simulator design can be applied in simulation of GNSS ocean reflected signals.
KW - Global Navigation Satellite System
KW - Improved model
KW - Reflected singal simulation
KW - Software design
UR - https://www.scopus.com/pages/publications/85039919816
U2 - 10.1109/CPGPS.2017.8075116
DO - 10.1109/CPGPS.2017.8075116
M3 - 会议稿件
AN - SCOPUS:85039919816
T3 - 2017 Forum on Cooperative Positioning and Service, CPGPS 2017
SP - 157
EP - 161
BT - 2017 Forum on Cooperative Positioning and Service, CPGPS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Forum on Cooperative Positioning and Service, CPGPS 2017
Y2 - 19 May 2017 through 21 May 2017
ER -