Sökning: "TDOA algorithm"

Visar resultat 6 - 9 av 9 uppsatser innehållade orden TDOA algorithm.

  1. 6. Enhancements in LTE OTDOA Positioning for Multipath Environments

    Master-uppsats, Linköpings universitet/Kommunikationssystem

    Författare :Ivar Olofsson; [2016]
    Nyckelord :positioning; TDOA; NLOS bias; multiple TOA candidates; probabilistic method; ML estimation; LTE; simulation;

    Sammanfattning : By using existing radio network infrastructure, a user can be positioned even where GPS and other positioning technologies lack coverage. The LTE Positioning Protocol (LPP) supports user Reference Signal Time Difference (RSTD) reports based on the Time of Arrival (TOA) for a Positioning Reference Signal (PRS). LÄS MER

  3. 7. "Characterization of RSSI based Proximity Detection"

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Dinesh Ramesh Kumar; [2013]
    Nyckelord :Localization technique; Propagation; pathloss; RFID;

    Sammanfattning : Real Time Locating System (RTLS) is a widely used monitoring application that assists in tracking and identifying persons or any objects using Anchors(nodes), RF tags and WSN. This is simplified by using the Chirp Spread Spectrum (CSS) technology . LÄS MER

  4. 8. Synchronized MAC layer for ultra-wideband wireless sensor network : Design, implementation, analysis, and evaluation

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Alessandro Monge; [2013]
    Nyckelord :IEEE 802.15.4a; synchronization; time delay of arrival; ultra-wideband; IEEE 802.15.4a; synkronisering; tidsfördröjning för ankomst; ultrabredbandsteknik;

    Sammanfattning : The necessity of interconnecting objects more and more, possibly with high mobility, has pushed the telecommunications industry to recently develop new wireless standards in order to guarantee tracking of devices and to provide integration with well-known worldwide networks such as the Internet. Within these standards the role played by power consumption is implicit, hence power consumption needs to be as low as possible in order to fulfill long-life requirements and to offer the opportunity of locating and moving smart objects in the coverage area while relying only on batteries as the device's power source. LÄS MER

  5. 9. Investigation of an optimal utilization of Ultra-wide band measurements for position purposes

    Magister-uppsats, Institutionen för informationsteknologi

    Författare :Vishnu Vardhan Siripi; [2006]
    Nyckelord :Ultra-wideband; interference cancellation; TDOA algorithm;

    Sammanfattning : Ultra wideband (UWB) communication systems refers to systems whose bandwidth is many times greater than the “narrowband” systems (refers to a signal which occupies only small amount of space on the radio spectrum). UWB can be used for indoor, communications for high data rates, or very low data rates for substantial link distances because of the extremely large bandwidth, immune to multi-path fading, penetrations through concrete block or obstacles. LÄS MER