Essays about: "distance attenuation"

Showing result 1 - 5 of 23 essays containing the words distance attenuation.

1. 1. Comparative Analysis of In-Body to Out-Body Wireless CommunicationModules: Test Design and PerformanceEvaluation

   University essay from Högskolan i Halmstad/Akademin för informationsteknologi

   Author : Remya Sree Rema Bhai; Sisymol Stellus; [2024]
   Keywords : In-Body to Off-Body Communication; prototype; test-design; test protocol; medical device; wireless communication.;

   Abstract : Wireless communication for biomedical equipment is rapidly improving with the invention of new technologies. Due to the absence of cables, wireless technology is a growing area of interest for biomedical applications. As technology advances, many gadgets are becoming smaller and more portable. READ MORE

3. 2. Performance Evaluation of LoRa networks for Air-to-Ground Communications

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Kiana Khorsandi; Sareh Jalalizad; [2023]
   Keywords : IoT; LPWAN; LoRaWan; UAV; LAP; Bit error rate; Line of sight;

   Abstract : The current focus on the Internet of Things (IoT) has led to the emergence of many network scenarios with unlimited use cases, including smart homes, smart cities, smart agriculture, and more. Unmanned aerial vehicles (UAVs), also known as drones, have become increasingly popular due to their versatility and ability to collect and transmit data through various sensors and cameras. READ MORE

4. 3. Sound Source Distance Estimation Using Sound Frequency Attenuation

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Frida Johnsson; Gillis Oldfeldt; [2023]
   Keywords : Technology and Engineering;

   Abstract : Estimating the distance between a sound source and receiver is an important problem. This thesis explores the possibility of estimating distance from a sound source using the attenuations regarding different frequencies over a distance. This method can be useful in cases where currently existing distance approxima- tion methods are not an option. READ MORE

5. 4. Atmospheric Attenuation for Lidar Systems in Adverse Weather Conditions

   University essay from Umeå universitet/Institutionen för fysik

   Author : Johan Viklund; [2021]
   Keywords : Lidar; Lidar equation; Extinction coefficient; Signal attenuation;

   Abstract : In this study, the weather impact on lidar signals has been researched. A lidar system was placed with a target at approximately 90 m and has together with a weather station collected data for about a year before this study. READ MORE

6. 5. Mapping Noise Pollution with Open-source GIS

   University essay from Högskolan i Gävle/Samhällsbyggnad

   Author : Faustina Lina Yeboah; [2021]
   Keywords : Road traffic noise; CNOSSOS-EU; noise exposure; Lday; Levening; Lnight; Lden;

   Abstract : In a time when urban areas continue to expand, environmental noise pollution especially from road traffic remains a big challenge. This study was aimed at using open-source GIS tools to predict road traffic noise pollution using the mid-sized city of Gävle as a case study. READ MORE