Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"universal software radio peripheral (USRP)"”.
-
Analyzing Bit Error Rate using Universal Software Radio Peripheral (USRP) Software Defined Radio in Indoor and Outdoor Environments
… as well as outdoor environments with the help of Software Defined Radio’s (SDR). Software Defined Radio technology provides cost effective approach and flexibility whereas the hardware approach of traditional systems has significant limitations. We used SDR that implements radio functionalities in …
-
Longer Term Dynamics of Bit Error Rates using Universal Software Radio Peripheral (USRP) Software Defined Radios for Indoor Environments
… of different modulation schemes using Software Defined Radios. Software Defined Radios provides inexpensive approach for engineering problems and paves way for its use in academics and research. We implemented our work using two Universal Software Radio Peripheral kits which are tested …
-
Design of software radio
Software Define Radio (SDR) has become a prevalent technology in wireless systems. In SDR some or all of the signal specific handling is implemented in software functions, while other functions like decimation, interpolation, digital up-conversion and digital down conversion are done on …
-
LPI Air Defence Noise Radar
… simulated Noise Radar is then implemented in the Universal Software Radio Peripheral (USRP) B210 H/W and tested against flying targets in monostatic mode. The actual results from H/W detection of real airborne targets are finally compared with simulated results.
-
Design and Implementation of a Distributed Tdoa-Based Geolocation System Using Ossie and Low-Cost Usrp Boards
The Software Communications Architecture (SCA) specification defines a framework that allows modular software components to be developed and assembled to build larger radio applications. The specification allows for these components to be distributed among a set of computing hardware and to be …
-
Configurable SDR Operation for Cognitive Radio Applications using GNU Radio and the Universal Software Radio Peripheral
… responders throughout the country, Cognitive Radio (CR) offers a unique solution to streamline communication between police, Emergency Medical Technicians (EMT), and military officers. Using Software Defined Radio (SDR) technology, a flexible radio platform can be potentially configured using …
-
Implementation of Wideband Multicarrier and Embedded GSM
… third generation networks and beyond, such as Universal Mobile Telecommunications System (UMTS) and Long Term Evolution (LTE), are undergoing extraordinary growth and driving a large share of current cellular development, technologies and deployments based on GSM are still dominant on a global …
-
Design and Implementation of a Constant Envelope OFDM Waveform in a Software-Defined Radio Platform
… contribution of this thesis is a highly tunable software-defined radio (SDR) implementation of the waveform which enables rapid-prototyping and testing of CE-OFDM systems. The digital baseband processing of the waveform is executed on a general purpose processor (GPP) in the Linux Ubuntu 14.04 …
-
A variable threshold for an energy detector using GNU radio
… efficiently utilized and appropriated. Cognitive radio communications serve to improve use of dwindling spectrum availability. Spectrum sensing is the first and critical technology in cognitive radio meant to determine radio parameters. Energy Detection (ED) is a spectrum sensing technology that …
-
Energy-detection based spectrum sensing for cognitive radio on a real-time SDR platform
… boom; consequently raising the level of radio spectrum demand. However, spectrum is a limited resource and cannot be infinitely subdivided to accommodate every application. At the same time, emerging wireless applications require a lot of bandwidth for operation, and have seen exponential …
-
Coarse Radio Signal Classifier on a Hybrid FPGA/DSP/GPP Platform
The Virginia Tech Universal Classifier Synchronizer (UCS) system can enable a cognitive receiver to detect, classify and extract all the parameters needed from a received signal for physical layer demodulation and configure a cognitive radio accordingly. Currently, UCS can process analog amplitude …
-
Integration of Open-Source Networks
… in the open-source community. Open-source software allows for deployment of a mobile cellular network with lower costs, more customization, and scalable control. Two popular projects have emerged that offer varying network architectures and allow users to implement a GSM network in …
-
Optimalizace interferencí v celulárních komunikačních systémech
… Navržený systém je testován pomocí zařízení Universal Software Radio Peripheral (USRP) a obsahuje dva typy detektorů; energetický detektor a statistický detektor založený na Kolmogorově-Smirnovově testu, které byly implementovány na přijímací straně. Jedním z hlavních požadavků komunikace D2D …
-
Symbol Timing and Coarse Classification of Phase Modulated Signals on a Standalone SDR Platform
The Universal Classifier Synchronizer (UCS) is a Cognitive Radio system/sensor that can detect, classify, and extract the relevant parameters from a received signal to establish physical layer communications using the received signal's profile. The current implementation is able to identify signals …
-
xG-SS: Towards a Hardware and Simulation Experimentation Platform for Spectrum Sharing with 5G NR-U
… synchronized, slot-scheduled sys- tems like New Radio (NR) Unlicensed (NR-U) remains underexplored. This gap exists primarily due to the lack of hardware testbeds and system-level simulation platforms that are essential for evaluating the effectiveness of LBT in NR-U and for developing improved …
-
Implementation of Real-Time Software Receiver for Gps or Glonass L1 Signals
A 12 channel real-time GPS L1 C/A-code software receiver has been implemented on a Desktop with 1.84GHz Intel CPU. The software receiver has the capability to acquire new satellites coming in, keep tracking of satellites in view and give a user solution accuracy of 30 meters. This study also …
-
Low-cost and flexible USRP based real-time global navigation satellite system receiver for ionospheric sounder
Made available in DSpace on 2018-03-13T15:28:45Z (GMT). No. of bitstreams: 2 KIM-THESIS-2017.pdf: 2624944 bytes, checksum: 54f94eb1b16a5d22d1bcb586b0c1a959 (MD5) LICENSE.txt: 4207 bytes, checksum: 1a026929318db256d44e97c1d5dc823a (MD5) Previous issue date: 2017-12-15
-
Diffusive Acoustic Confocal Imaging System (DACI): a novel method for prostate cancer diagnosis
… the investigating acoustic beam were measured. A USRP device was set up as the signal generation and acquisition device for the experiment. Two different signal extractions methods were developed to extract the amplitude and the phase information. The experimental results were found to generally …