Research on and education for navigation control of an exploration rover with microwave Doppler sensors (fabrication of the signal processing electrical circuit)
Masahiro Isogai, Yuya Takada · 2016
Microwave Doppler sensors commonly used in automatic-door systems have been used in a rover navigation system. A collimated microwave beam with an angular width of ±3° at a frequency of 24 GHz was emitted from a sensor (A) on a dish antenna 30 cm in diameter. Another sensor (B), which works as a detector, was installed on the rover. The rover was programmed to make a right turn when the microwave signal was above a specified level and to make a left turn when the signal was below that level. In this study, we fabricated a signal processing electrical circuit for the fourth prototype rover. To confirm the performance of the fabricated electrical circuit, we carried out some experiments on the frequency response of the electrical circuit. Finally, we had a questionnaire for the student who collaborated with this study to investigate how this study had an educational effect on the student.