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Based on a workshop developed at INICTEL-UNI, this paper presents the methodology and considerations taken to improve the experiences in communication laboratory sessions in Peruvian universities with Software Defined Radio platforms, using a HackRF-One for transmission and a RTL-SDR for reception together with GNUradio Companion, an open source software. The use of these tools allows real communications...
Software defined radio (SDR) is a rapidly developing technology that implements signal processing components partially or completely in software. In this paper, SDR's potential as a platform for ground-penetrating radar (GPR) is explored. The stepped-frequency radar method is implemented using off-the-shelf SDR hardware and open-source software. SDR is typically designed for communications applications,...
This paper documents development and basic testing of an asymmetric FHSS network. Asymmetric in a way that the network HUB or master consumes a lot of power, while the peripherals or slaves consume as little power as possible. To achieve good consumption, the input only sensors are sleeping most of the time and quickly synchronize into the FHSS scheme upon an event. The main idea explored in this...
This tutorial provides an overview on the state of the art in wireless testbeds and prototypes suitable for MIMO transmissions. We discuss the pros and cons of available tools on the market, report our experiences and present examples of recent MIMO HSDPA measurements with our Vienna MIMO testbed.
A coarsely-synchronized, easy to deploy, distributed RF sensor network using embedded USRP software-defined radios on a dedicated IP network was developed and tested. The goal was the evaluation of a simple network and signal observation synchronization strategy on measured physical signals for use with collaborative sensor spectral estimation algorithms. The hardware and software architecture of...
This paper demonstrates the use of open source hardware and software to implement the digital back end of a network of radars. i.e. RHINO platform - a highly capable reconfigurable platform serving both digitisation / synthesis and packetisation functions for a dual X and L band radar. The system is capable of arbitrary waveform generation for transmit, and can be configured at runtime and reprogrammed...
ISHP (Ion Source Hydrogen Positive) project consists of a highly versatile ECR type ion source. It has been built with several purposes, on the one hand, at the first stages, to serve as a workbench to test accelerator related technologies and validate in-house made developments. On the other hand, to design an ion source valid as the first step in an actual LINAC. Since this paper is focused on the...
This paper proposes the synchronization method for TDOA-based Localization system. It is verified by using the commercial SDR-based receiver. Synchronization between the channels is required to obtain the TDOA measurement in multi-channel environment. It is classified into the data, phase and clock synchronization and the arbitrary signal is generated to synchronize the data and phase. The generated...
Reliabilities for the technologies of position detection mean the measurement errors in the position detection. Presently, there are many different technologies used in position detection. But, as signal receiver operating in different locations are used to detect precise positions of objects located at long distances, it is hard to know when a object's or user's-terminal devices send a signal[1]...
Indoor localization with the accuracy being better than few meters may be a quite challenging task when the system costs are an issue. This paper presents a frequency modulation continuous wave (FMCW) technology-based indoor localization system that has been built in the EU FP7 Confidence project. The main objective of the Confidence project is the development and integration of innovative technologies...
Current emerging reconfigurable coarse grained processors are gaining more popularity, as they introduce a new way for more dynamicity similar to FPGA and tend to achieve the performance of application specific hardware. An adaptive architecture can face the diversity of applications dynamically in the hardware without the need of any software manipulation. However the need for more flexibility to...
By using Wireless Sensor Networks information from the environment may collected by interactive manner and can make changes depending on this data where necessary. In this paper, living or object that allows the monitoring in a determined area is designed by using WSN. Localization techniques are depended on RSSI (Received Signal Strength Indicator) value and time synchronization is given on the designed...
This paper presents a novel signal detection method using multi-level threshold values for initial time synchronization in ultra wide-band (UWB) systems adapting multi-band OFDM (MB-OFDM) techniques. In the proposed method employing a cross-correlation technique, the performance of initial signal detection can be improved by using multi-level threshold values without increasing the hardware complexity...
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