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Vol. 172, Issue 6, June 2014, pp. 21-26

 

Bullet

 

Positioning System Performance Based on Different Pressure Sensors
 

Zhengqun Hu

National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, 100012, Beijing, China
Graduate University of Chinese Academy of Sciences, 80 Zhongguancun East Road, Haidian District, 100086, Beijing, China
Tel.: +8610-64807612

E-mail: huzq@nao.cas.cn

 

Received: 11 March 2014  /Accepted: 30 May 2014  /Published: 30 June 2014

Digital Sensors and Sensor Sysstems

 

Abstract: The atmospheric pressure sensor is used to be auxiliary method in positioning system, which is used as an elevation constraint to solve positioning equation, the pattern in the height measurement accuracy is better than 1 m. Pressure sensors in different sensitivities are with different performance, two classic atmospheric pressure sensors MS5534C and BP5607 were analyzed in the performance and depth analysis of the sensitivity in the pressure sensors is done, due to the measurement sensitivity, resolution is different, the performance in positioning system may be different. The experiments show that the two sensors both have a good high-precision in measurement. However the stability of BP5607 is better than the MS5534C at fixed pot measurement. The impact of temperature on MS5534 is greater than BP5607 which is further analyzed. BP5607 applied in the positioning system has a good performance than MS5534C in Differential Barometric Altimeter (DBA), especially in elevation auxiliary positioning system, which will have a great application prospect in the relevant field.

 

Keywords: DBA, Sensor, MS5534C, BP5607, MEMS, Sensitivity, Positioning system.

 

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