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Ferran Orga   Mr.  University Educator/Researcher 
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Ferran Orga published an article in May 2017.
Top co-authors
David Altadill

59 shared publications

Observatori de l’Ebre, CSIC - Universitat Ramon Llull

Joan Lluís Pijoan

8 shared publications

GR-SETAD, La Salle - URL

Joan Claudi Socoró

5 shared publications

Francesc Alías

4 shared publications

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Publication Record
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Publications
Article 1 Read 2 Citations Performance analysis of the low-cost acoustic sensors developed for the DYNAMAP project: A case study in the Milan urban... Francesc Alías, Rosa M. Alsina-Pagès, Joan Claudi Socoró, Fe... Published: 01 May 2017
The Journal of the Acoustical Society of America, doi: 10.1121/1.4988702
DOI See at publisher website
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Dynamic noise maps are asked to accurately represent in real time the noise levels captured by acoustic sensors in urban environments. Thus, the measurement precision of the employed sensors becomes of paramount importance to obtain a reliable picture of the urban noise levels. In this work, a case study designed to validate the accuracy of the Leq values of the low-cost acoustic sensor developed for the DYNAMAP project in real-life conditions is presented. To that effect, simultaneous acoustic measurements have been conducted in the same locations in the Milan’s project pilot area using a Class I sound level meter and the low-cost sensor. The analysis of the parallel acoustic data collected during the recording campaign compares both measuring equipments accounting for traffic noise, background city noise, and non-traffic noise events.
CONFERENCE-ARTICLE 2 Reads 0 Citations Narrowband and Wideband Channel Sounding of an Antarctica to Spain Ionospheric Radio Link Marcos Hervás, Rosa Ma Alsina-Pagès, Ferran Orga, Joan Lluis... Published: 22 June 2015
1st International Electronic Conference on Remote Sensing, doi: 10.3390/ecrs-1-d003
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La Salle and the Ebro Observatory have been involved in a joint project about remote sensing in Antarctica during the last 11 years (approximately a solar cycle). The Ebro Observatory has been monitoring the geomagnetic and the ionospheric activity in the Juan Carlos I Antarctic Spanish Station (ASJI), for more than fifteen years. La Salle has two main goals in the project; on one hand, the data transmission and reception to obtain a historical series of channel sounding of a 12760 km ionospheric HF radio link, and on the other hand, the establishment of a stable data communication system between the ASJI and Cambrils (Spain) to transmit the data from the remote sensors located in the island. Currently, only a part of the processed geomagnetic data can be sent to Ebro Observatory when the ASJI is unattended through satellite communications. However, during the austral summer, when the ASJI is operative, the RAW data from the geomagnetic network sensors can be fully transmitted through ionospheric communications. In 2008, we developed the first channel characterization approach, using multipath delay spread, Doppler spread, SNR and availability of the narrowband and wideband soundings conducted at certain frequencies at some hours of the day. In 2012, the narrowband sounding was improved using several windowing of the received data. In this paper, both narrowband and wideband soundings have been taken into account to determine channel availability performed using a frequency range from 2 to 30 MHz with 0.5 MHz step during the 24 hours of the day, which is a wider sweep of channel measurements than previously. This paper presents the results for the austral summer in 2014. These measurements were performed using a monopole antenna at the transmitter and an inverted V on the receiver side.