نتایج جستجو برای: ترازیابی با gps

تعداد نتایج: 700280  

2016

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

2016

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

Auto-navigating of unmanned aerial vehicles (UAV) in the outdoor environment is performed by using the Global positioning system (GPS) receiver. The power of the GPS signal on the earth surface is very low. This can affect the performance of GPS receivers in the environments contaminated with the other source of radio frequency interference (RFI). GPS jamming and spoofing are the most serious a...

Journal: :international journal of electrical and electronics engineering 0
narjes davari department of electrical and computer engineering isfahan university of technology asghar gholami department of electrical and computer engineering isfahan university of technology mohammad shabani department of eelectrical and computer engineering isfahan university of technology

accuracy of inertial navigation system (ins) is limited by inertial sensors imperfections. before using inertial sensors signals in the data fusion algorithm, noise removal method should be performed, in which, wavelet decomposition method is used. in this method the raw data is decomposed into high and low frequency data sets. in this study, wavelet multi-level resolution analysis (wmra) techn...

2006
Shuanggen Jin J. U. Park J. L. Wang B. K. Choi P. H. Park

Nowadays GPS is widely used to monitor the ionosphere. However, the current results from ground-based GPS observations only provide some information on the horizontal structure of the ionosphere, and are extremely restricted in mapping its vertical structure. In this paper, tomography reconstruction technique was used to image 3D ionospheric structure with ground-based GPS. The first result of ...

2014
G. Kavya V. ThulasiBai

GPS Receivers are used for both military and civilian applications. This paper presents the GPS Receiver for System on Chip (SoC) application. In this paper the GPS Receiver is been implemented as System on Chip in FPGA board. VHDL modeling for the back end of GPS Receiver is designed. As baseband signal processing is the main aspect in the GPS receiver, it is achieved by this software GPS Rece...

جمال عسگری, علیرضا امیری سیمکویی فرزانه زنگنه‌نژاد

امروزه، از سیستم ناوبری اینرسی (INS)و سیستم تعیین موقعیت جهانی (GPS)، در کاربردهای مختلف ناوبری و تعیین موقعیت استفاده می‌شود. هر کدام از دو سیستم نامبرده مزایا و معایبی دارند؛ تلفیق GPS/INS، در طول دو دهة اخیر، برای غلبه بر معایب هر یک از دو سیستم (مشکل لزوم وجود دید آسمانی بین آنتن گیرنده و ماهواره در GPSو مشکل افزایش سریع خطا با زمان در INS) توسعه داده شده است. در سیستم‌های تلفیق از مشاهدات ...

2006
Ingrid Olssøn Arnstein Mykletun Alv A Dahl

BACKGROUND Several studies have shown that general practitioners (GPs) under-diagnose common mental disorders, and that training courses hardly improve this practice. The influence of GPs' self-perceived ability to recognize the severity of such disorders on these facts has not been investigated. This study explores: 1) GPs' perceived ability to recognize major depressive episode (MDE) and gene...

2016
Heidi R Svendby Beate F Løland Marianne Omtvedt Solveig T Holmsen Per Lagerløv

BACKGROUND Breastfeeding is considered the best infant-feeding method. Norway is one of the leading countries in terms of breastfeeding initiation and duration. To maintain this high breastfeeding rate, it is important to understand the factors that influence breastfeeding. A doctor s advice can improve the rates of breastfeeding initiation and duration, but not all doctors are competent in bre...

2016
Kristine Heitmann Hans Christian Svendsen Ingvild H. Sporsheim Lone Holst

OBJECTIVE Nausea and vomiting during pregnancy (NVP) is very common, and may have great impact on a woman's life. The aim of this study was to explore thoughts and attitudes among Norwegian pregnant women and GPs on treatment of NVP and pregnancy care. DESIGN Focus-group study. SETTING AND SUBJECTS Separate focus-group discussions were conducted with pregnant women and GPs. RESULTS Two fo...

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