ASIN-Based UWB Radar for Sludge Monitoring

IEEE Aerosp. Electron. Syst. Mag.

2017

Facilitating the coexistence of radar systems with communication systems has been a major area of research in radar engineering. The current work presents a new way to sense the environment using the channel equalization block of existing communication systems. We have named this system CommSense.In the current paper we demonstrate the feasibility of the system using Global System for Mobile Communications (GSM) signals. The implementation has been done using open-source Software Defined Radio (SDR) environment. In the preliminary results obtained in our work we show that it is possible to distinguish environmental changes using the proposed system. The major advantage of the system is that it is inexpensive as channel estimation is an inherent block in any communication system and hence the added cost to make it work as an environment sensor is minimal. The major challenge, on which we are continuing our work, is how to characterize the features in the environmental changes. This is an acute challenge given the fact that the bandwidth available is narrow and the system is inherently a forward looking radar. However the initial results, as shown in this paper, are encouraging and we intend to use an application specific instrumentation (ASIN) scheme to distinguish the environmental changes.

Section: Introductionmentioning

confidence: 87%

GSM-based commsense system to measure and estimate environmental changes

Bhatta

IEEE Aerosp. Electron. Syst. Mag.

2017

“…• The last challenge of getting a phenomenological knowledge is the toughest of all the listed challenges. In solving this we propose to use a bio-inspired scheme that combines compressive sensing and application specific instrumentation (ASIN) [13], [14]. The driving philosophy of this scheme lies in the fact that in stead of trying to estimate everything in the scene, we try to estimate one or a few anomalies only.…”

Section: Proposed Solutionsmentioning

confidence: 99%

CommSense: Radar system using existing communication infrastructure to sense the environment

2015 25th International Conference Radioelektronika (RADIOELEKTRONIKA)

2015

Self Cite

The effort to use existing communication systems as radars and vice versa has been there since the last great war. The current work describes a new way to use the existing communication systems to sense the change in the environment. This kind of radar, named as CommSens by the author, can be used in tasks like crop growth monitoring, disaster monitoring, sea state monitoring etc. The key to this technology lies in the use of pilot signal in the communication signal frames to monitor the channel and thereby estimate the change in the channel state.

“…Getting a proper phenomenological sense from this amount of data did not seem possible. Hence, we used the application specific instrumentation framework (ASIN) [13,16] which uses statistical machine learning to recognize 'events of interest'. The shaded region in Figure 1 is the major focus of the work presented here, which corresponds to the analysis of the data captured by the GSM-CommSense system.…”

Section: Introductionmentioning

confidence: 99%

GSM–CommSense-based through-the-wall sensing

Bhatta

2017

Remote Sensing Letters

Self Cite

We have recently proposed a scheme to use the channel equalization blocks of telecommunication systems to sense changes in an environment. We call this communication-sensing, CommSense for short.After some initial positive results we tried to use our global system for mobile communication (GSM)based CommSense system for a through-the-wall sensing application. As the system was inherently highly under-determined we used statistical machine learning techniques to help us sense environmental changes in the behind-the-wall experiments. We observed that with limited amount of data per GSM frame of 577 µs a person can be detected across a wall to an accuracy of 77.458% and a person carrying a weapon can be detected to an accuracy of 95.208%. We present details of the experiments and the encouraging results that we have obtained in this article.