Definition Global Positioning System a.k.a. GPS is a navigational system involving satellites and computers that can determine location (latitude, longitude and altitude) of any point on Earth. The satellite transmits signals which are received on earth by relatively inexpensive receiving device. By calculating the distance between four or more satellites and a receiver, a three-dimensional pos...

this paper presents a method for generating a digital management map to apply cyanazine pre-emergence herbicide. the main objective was to develop a precision method to generate management maps for the variable rate application of herbicide to reduce the amount of herbicide applied and its adverse impact on the environment. first, local and utm coordinates of a field were determined using total...

The occurrence of cycle slips is a major limiting factor for achievement of sub-decimeter accuracy in positioning with GPS (Global Positioning System). In the past, several authors introduced a method based on different combinations of GPS data together with Kalman filter to solve the problem of the cycle slips. In this paper the same philosophy is used but with discrete wavelet transforms. For...

WLAN positioning systems are a promising approach to determine a users location in In-Building environments. The motivation for developing, the possible utilization as well as known issues are discussed. Physical fundamentals and technical aspects of the WLAN technique are explained to examine the positioning potential in detail. Furthermore, an example positioning system is presented and analy...

We present preliminary results of the design of a mini in-parallel 3-d.o.f. positioning system called MIPS. MIPS degrees of freedom are one translation and two orientations, which are obtained by the motions of linear magnetic actuators acting within a special in-parallel mechanical architecture. Its overall width will be about 1cm for a length of about 3cm. MIPS should be useful in medical app...

Drawing on an in-depth analysis of eight global health networks, a recent essay in this journal argued that global health networks face four challenges to their effectiveness: problem definition, positioning, coalition-building, and governance. While sharing the argument of the essay concerned, in this commentary, we argue that these analytical concepts can be used to explicate a concept that h...