scholarly journals Random Time Delay Mitigation in Pulse Radar Systems Implementation using Universal Software Radio Peripheral (USRP) and GNU Radio Companion (GRC)

2019 ◽  
Vol 2 (3) ◽  
pp. 85
Author(s):  
Alifia Fitri Utami ◽  
Iswandi Iswandi ◽  
I Wayan Mustika
Keyword(s):  
Time Delay ◽  
Software Radio ◽  
Radar System ◽  
Random Time ◽  
Gnu Radio ◽  
System Implementation ◽  
Pulse Radar ◽  
Systems Implementation ◽  
Radar Systems ◽  
Universal Software Radio Peripheral

Abstract— Radar or radio detection and ranging has a basic function to detect and measure a target range. One of the latest developments is Software Defined Radio (SDR)-based radar. An example of SDR implementation is by using Universal Software Radio Peripheral (USRP) as hardware and GNU Radio Companion (GRC) as software. The simplest radar type is pulse radar in which system timing is crucial. Meanwhile, in pulse radar system implementation using USRP and GRC, there is an issue with the random processing time delay between communication protocol of USRP and computer running the GRC, which causes incorrect measurement. This research aims to analyze the random time delay in the pulse radar system implementation by using USRP and GRC to anticipate the effect of random time delay. Pulse radar systems implementation is administered by transmitting 128 bits of Barker code and performing correlation between transmitted and received radar signal. Research result shows that the random time delay can be anticipated by making the direct reception from radar transmitter to receiver as the reference in range calculation.

scholarly journals PROPUESTA DE DISEÑO DE UN RADIO DEFINIDO PORSOFTWARE PARA LA CARACTERIZACIÓN DE LA BANDA IMT

2017 ◽  
Vol 2 (26) ◽  
Author(s):  
Mónica Espinosa Buitrago ◽  
Víctor Castro Ramírez ◽  
Iván Díaz Pardo ◽  
Mateo González Moreno ◽  
Cesar Villate Barrera ◽  
...  
Keyword(s):  
Software Radio ◽  
Gnu Radio ◽  
Mobile Telecommunication ◽  
Universal Software Radio Peripheral

En este artículo se define la propuesta de diseño de un radio definido por software para la caracterización o sensado de la banda de telecomunicaciones móviles celulares. Para ello, se definen los sistemas de radiocomunicaciones utilizados en los servicios inalámbricos. Con este fin se caracterizaron las bandas de espectro radioeléctrico denominadas IMT (Internacional Mobile Telecommunication) y se analizan  los sistemas de radio definido por software para posteriormente presentar la propuesta de diseño. En donde se definieron las etapas de diseño de la plataforma de gestión, diseño del radio definido por software y el procesamiento de señal que permitirán generar plataformas con sistemas de USPR (Universal Software Radio Peripheral) mediante herramientas como MATLAB y GNU Radio.

scholarly journals Experimentations on the Transmit Power of a Universal Software Radio Peripheral Using GNU Radio Framework and a Handheld RF Explorer

2021 ◽  
Vol 655 (1) ◽  
pp. 012006
Author(s):  
Sunday Ajala ◽  
Emmanuel Adetiba ◽  
Mathew B. Akanle ◽  
Obiseye O. Obiyemi ◽  
Surendra Thakur ◽  
...  
Keyword(s):  
Software Radio ◽  
Gnu Radio ◽  
Transmit Power ◽  
Universal Software Radio Peripheral

Software-Defined Radio/Digital Signal Processing-Based Cognitive System for Universal Software Radio Peripheral Satellite Signal Detection

2019 ◽  
pp. 213-226
Author(s):  
Giti Javidi
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Software Defined Radio ◽  
Software Radio ◽  
Digital Signal ◽  
Cognitive System ◽  
Gnu Radio ◽  
Performance Improvements ◽  
Quantitative Results ◽  
Universal Software Radio Peripheral

In this chapter, the author describes a software-defined radio (SDR)/digital signal processing (DSP)-based cognitive system that has been developed based on the universal software radio peripheral (USRP) and the GNU radio software platform to detect satellite signals. The USRP, running Ubuntu operating system, with interchangeable daughterboard, allows for a variety of experimental settings. The USRP Xilinx Vertex 3 FPGA chip can handle C++, Python, and/or VHDL device programming and configuration. The goal is to create a detector in C++ and Python to implement a cognitive system capable of recording the L1 signal from a DirecTV satellite. The GNU radio companion (GRC), an open source for building software defined radio, and Matlab/Simulink logic blocks are used to create the desired flow graph that results in building and generating the detector program. The proposed experiments explore the effects of different detection techniques, and provide some quantitative results on performance improvements via the software-defined radio approach.

The Research of Chirp Signal Based on GNU Radio and USRP

2013 ◽  
Vol 336-338 ◽  
pp. 1765-1770
Author(s):  
Yong Geng ◽  
Si Long Wu ◽  
Fang Kun Jia
Keyword(s):  
Software Defined Radio ◽  
Software Radio ◽  
Chirp Signal ◽  
Gnu Radio ◽  
Design Algorithm ◽  
Universal Software Radio Peripheral ◽  
The Difference

This paper put forward a research of the chirp signal and its generated method. The research was based on a software-defined radio (SDR) system, which was composed of GNU Radio and Universal Software Radio Peripheral (USRP). It introduced the chirp signal and design algorithm to show how to generate the chirp signal based on DDS technique. And it provided two platforms including the FPGA platform and SDR platform to generate the chirp waveforms. Finally, it analyzed the difference between the two platforms. From the waveforms using these two platforms displayed in oscilloscope, it found that the results based on SDR were better. And it demonstrated that advantages of GNU Radio and USRP.

scholarly journals Deteksi Radar Pasif menggunakan GNU Radio dan SDR pada Frekuensi Televisi

2020 ◽  
Vol 8 (3) ◽  
pp. 505
Author(s):  
YONATAN EDWIN MARPAUNG ◽  
ALOYSIUS ADYA PRAMUDITA ◽  
ERFANSYAH ALI
Keyword(s):  
Software Defined Radio ◽  
Cross Correlation ◽  
Moving Objects ◽  
Radar System ◽  
Digital Television ◽  
Passive Radar ◽  
Gnu Radio ◽  
Delay Test ◽  
Radar Systems ◽  
Television Receiver

ABSTRAKRadar pasif adalah salah satu jenis sistem radar bistatic dimana transmitter dan receiver berada di tempat berbeda. Sistem radar pasif dapat memaanfaatkan frekuensi siaran televisi yang tersedia sebagai sumber transmitter. Pada penelitian ini, radar pasif dibuat dengan Sofware Defined Radio (SDR) sebagai sistem komunikasi yang dapat mengkofigurasi penerima televisi digital sdr-dongle RTL2832U yang dimodifikasi dan perangkat lunak GNU Radio. Hasil pengujian delay pada gelombang 1,2,3 untuk objek manusia adalah 0,192, 0,36 dan 0,53 detik, untuk objek sepeda adalah 0,332, 0,5 dan 0,67, untuk objek motor adalah 0,422, 0,69 dan 0,86 detik, untuk objek mobil adalah 0,538, 0,7 dan 0,87 detik sehingga dapat disimpulkan bahwa sistem radar pasif yang dirancang dapat mendeteksi benda bergerak dimana pegerakan target menyebabkan pergeseran puncak Cross-Correlation.Kata kunci: Radar Pasif, Cross-Correlation, SDR, Frekuensi Televisi, RTL2832U ABSTRACTPassive radar is a type of bistatic radar system where the transmitter and receiver are in different places. Passive radar systems can utilize the available television broadcast frequencies as transmitter sources. In this study, passive radar is made with Software Defined Radio (SDR) as a communication system that can configure a modified RTL2832U sdr-dongle digital television receiver and GNU Radio software. The delay test results on waves 1,2,3 for human objects are 0.192, 0.36 and 0.53 seconds, for bicycle objects are 0.332, 0.5 and 0.67, for motor objects are 0.422, 0.69 and 0.86 seconds, for car objects are 0.538, 0.7 and 0.87 seconds so it can be concluded that the passive radar system is designed to detect moving objects where moving targets causes a shift in the peak of Cross-Correlation.Keywords: Passive Radar, Cross-Correlation, SDR, Television Frequency, RTL2832U

Sign in / Sign up

Export Citation Format

Share Document