Sökning: "X-band radar"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden X-band radar.

1. 1. Creating a semantic segmentationmachine learning model for sea icedetection on radar images to study theThwaites region

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Carmen Fuentes Soria; [2022]
   Nyckelord :Synthetic Aperture Radar SAR ; Machine Learning ML ; Semantic segmentation; Convolutional Neural Networks CNN ; Thwaites Glacier;

   Sammanfattning : This thesis presents a deep learning tool able to identify ice in radar images fromthe sea-ice environment of the Twhaites glacier outlet. The project is motivatedby the threatening situation of the Thwaites glacier that has been increasingits mass loss rate during the last decade. LÄS MER

3. 2. Using linear regression and neural network to forecast sewer flow from X-band radar data

   Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

   Författare :Fredrik Wigertz; [2021]
   Nyckelord :Neural network; Linear regression; Flow forecasting; Wastewater; Wastewater treatment plant; Rainfall-runoff modelling; X-band radar; Neurala nätverk; Linjär regression; Flödesprognosering; Avloppsvatten; Reningsverk; Avrinningsmodellering; X-bandradar;

   Sammanfattning : The climate adaptation of our cities and the optimization of our technical systems with regards to weather sets high demands on the availability and the processing of weather data. The possibility to forecast disturbances of influent flow rate to wastewater treatment plants allow control systems counteract these disturbances before they have a harmful effect on the treatment processes. LÄS MER

4. 3. Using X-band Radar with a Neural Network to Forecast Combined Sewer Flow - A case study in Lund

   Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Författare :Filip Faust; Per Nelsson; [2020]
   Nyckelord :X-band radar; neural networks; combined sewer; forecasting; urban hydrology; Lund; Technology and Engineering;

   Sammanfattning : This study aimed to forecast combined sewer flow into a wastewater treatment plant in Lund, Sweden by using uncalibrated X-band radar data with a neural network. Neural networks have proved themselves useful in the field of forecasting as they can solve multiple kinds of problems and recognise patterns in the data (Alemu et al. LÄS MER

5. 4. Flow simulation in MIKE URBAN based on high-resolution X-band radar data

   Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Författare :Lisa Olsson; [2019]
   Nyckelord :X-band radar; MIKE URBAN; modelling; rainfall-runoff; online control; Technology and Engineering;

   Sammanfattning : Radar har använts sedan 1940-talet för att mäta och övervaka nederbörd. Under de senaste åren har X-bandradarn visat sig vara ett verktyg som kan förbättra indata till avrinningsmodellering inom urbana avrinningsområden. Detta tack vare sin höga upplösning i tid och rum jämfört med andra radarer som används vid nederbördsmätning. LÄS MER

7. 5. Evaluation of X-band Weather Radar Data in Urban Hydrology

   Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Författare :Alva Kalm; Camilla Hedell; [2019]
   Nyckelord :Urban hydrology; X-band radar; Bias correction; Error analysis; Neural network; Scania.; Technology and Engineering;

   Sammanfattning : Throughout history it has always been crucial to accurately measure, track, and predict precipitation. This has been done using various methods with varying degrees of precision. As the world evolves and as urban areas expand, it has become more apparent that there is a need for a more efficient way to observe and record precipitation. LÄS MER