Microwave backscatter modulation systems

Kossel, Marcel; Benedickter, H.; Peter, Rubin Jose; Bächtold, W.

doi:10.1109/mwsym.2000.862242

Cited by 38 publications

(21 citation statements)

References 3 publications

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“…The agent interrogates all the access points by issuing a broadcast signal in the network, while the access points immediately respond this interrogation. Kossel et al [21] elaborated this scheme with backscatter modulation with frequency hopping. In their work, the interrogation signal is coherently reflected back to the agent by the access point, while superimposed with a specific modulation.…”

Section: Time Of Arrival-based Radiolocationmentioning

confidence: 99%

A grid-based indoor radiolocation technique based on spatially coherent path loss model

Ambarkutuk

Furukawa

2017

2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (MFI)

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(Academic)This thesis presents a grid-based indoor radiolocation technique based on a Spatially Coherent Path Loss Model (SCPL). SCPL is a path loss model which characterizes the radio wave propagation in an environment by solely using Received Signal Strength (RSS) fingerprints. The propagation of the radio waves is characterized by uniformly dividing the environment into grid cells, followed by the estimation of the propagation parameters for each grid cell individually. By using SCPL and RSS fingerprints acquired at an unknown location, the distance between an agent and all the access point in an indoor environment can be determined. A least-squares based trilateration is then used as the global fix of location the agent in the environment. The result of the trilateration is then represented in a probability distribution function over the grid cells induced by SCPL. Since the proposed technique is able to locally model the propagation accounting for attenuation of non-uniform environmental irregularities, the characterization of the path loss in the indoor environment This thesis presents a technique uses radio waves to localize an agent in an indoor environment. By characterizing the difference between transmitted and received power of the radio waves, the agent can determine how far it is away from the transmitting antennas, i.e. DedicationTo my loving parents, lovely sister, and my precious friend Isil Anakok.iv

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Section: Time Of Arrival-based Radiolocationmentioning

confidence: 99%

A grid-based indoor radiolocation technique based on spatially coherent path loss model

Ambarkutuk

Furukawa

2017

2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (MFI)

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“…Then, the relation between the received RF power r P and the induced voltage level t V is expressed as [4]. 2 …”

Section: Advantages Of the System Arementioning

confidence: 99%

“…On the other hand, the required number of RF sources decreases with output power. If RF sources transmit at a higher output power, they are able to satisfy (2) for WPSN nodes at a larger distance, hence, their range is increased. This means that the event field can be covered with a smaller number of RF sources [14].…”

Section: Carrier Frequencymentioning

confidence: 99%

Determination of RF Source Power in WPSN Using Modulated Backscattering

Sreedhar¹

2012

IJSC

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“…This is of major concern when the target radar cross section (RCS) is smaller than that of other surrounding objects. In order to mitigate this problem, a modulated backscatter transponder has been proposed in [6]. In this case the spectrum at the output of the mixer is shifted by the modulated frequency of the tag, f tag .…”

Section: Introductionmentioning

confidence: 99%

“…The frequency difference between peaks is proportional to the distance between the radar and the tag. The read range using passive backscatter transponder system such as [6] is about 10 m with a transmit power of 10 dBm. One method to increase the read range from tens to hundreds of meters has been proposed in [7] using switched injection-locked oscillator (SILO) transponders at 5.8 GHz ISM band, with the die micrograph of the reflector circuit [8].…”

Section: Introductionmentioning

confidence: 99%