Highly Portable, Low-Cost SDR Instrument for RF Propagation Studies

Abstract

This is a repository copy of Highly portable, low cost SDR instrument for RF propagation studies.

RF-based mini-Drone Detection, Identification & Jamming in No Fly Zones using Software Defined Radio

“…SDR platforms are low cost commercial off the shelf (COTS) equipments that replace the radio functions of signal processing from hardware components to software techniques. Due to its abilities of high precision measurements and digital processing reconfigurability, it can be used for detecting RF communications and replacing expensive spectrum analyzers [14]. To accomplish the detection step, we have implemented energy detection (ED) technique on SDR platform.…”

IoT focused VHF and UHF propagation study and comparisons

“…This can be seen in ( 5) [22] σ dB ¼ ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi ffi 1 n at a given distance This gives the shadowing standard deviation, allowing the model described in (3) to be completed. Further details can be found in the author's previous paper [4].…”

“…Linear regression to the measurements taken is used to provide figures for K and γ in (), further details can be found in the author's previous paper [4]. The log‐normal random variable relates to shadowing and will be dealt with in Section 1.4.…”

“…In order to examine the use of this newly re‐purposed spectrum, a propagation study will be conducted using a commercial off the shelf (COTS) software defined radio (SDR) based instrument previously developed and described by the authors of this paper in [3] and [4]. This instrument is specifically designed to operate within an IoT use case.…”

Radio-Propagation Measurement Based on a Low-Cost Software Defined Radio

“…In the open literature some similar projects are reported. A propagation measurement system using the same SDR is reported [10], with the additional inclusion of an RF switch to select between two antennas, since it was originally devised to be of dual-band operation. In comparison to the present study, it does not include the monitor and does not contain a TCP/IP client-server option for the data-communication.…”