GAC：高能效的GPS-加速度计-罗盘混合定位GSM
GAC: Energy-Efficient Hybrid GPS-Accelerometer-Compass GSM Localization
摘要：
将位置添加到可用信息中可以启用新类别的应用程序。随着手机电池的限制，节能定位成为一个重要的挑战。在本文中，我们介绍了一个低能量校准免费定位方案的基础上，在今天的许多手机的内部传感器。我们首先对可用于定位的不同传感器进行能量分析。在此基础上，我们提出了GAC：一个混合的GPS/加速度计/罗盘方案，主要依赖于使用低能量的加速度计和罗盘传感器和使用GPS很少同步。我们在支持Android的手机上实现了我们的系统，并在高速公路和市内驾驶环境中进行了评估。我们的研究结果表明，所提出的混合方案具有指数节能，与GPS精度相比，精度的线性损失。我们还评估了不同参数对能量精度权衡的影响。
英文摘要：
Adding location to the available information enables a new category of applications. With the constrained battery on cell phones, energy-efficient localization becomes an important challenge. In this paper we introduce a low-energy calibration-free localization scheme based on the available internal sensors in many of today's phones. We start by energy profiling the different sensors that can be used for localization. Based on that, we propose GAC: a hybrid GPS/accelerometer/compass scheme that depends mainly on using the low-energy accelerometer and compass sensors and uses the GPS infrequently for synchronization. We implemented our system on Android-enabled cell phones and evaluated it in both highways and intra-city driving environments. Our results show that the proposed hybrid scheme has an exponential saving in energy, with a linear loss in accuracy compared to the GPS accuracy. We also evaluate the effect of the different parameters on the energy-accuracy tradeoff.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
