Urban Areas
Urban areas are of significant importance to mankind and our environment. This introduction lesson gives an insight on the characteristics of urban areas and their…
Resource Spectrum: Radar
Urban Footprints
In this lesson the importance of urban footprint mapping is explained, while various SAR features relevant for mapping these urban footprints are given. Moreover, you…
Urban Land Cover
Advanced knowledge about the importance of urban area mapping and the relevant characteristics of urban areas in SAR data are given in this lesson. Moreover,…
Extraction of Urban Objects
This module will show the importance of extracting certain urban objects, such as buildings, trees or roads. Moreover, the potential of SAR data for urban…
Urban Digital Surface Model
In this lesson the importance of urban DSM mapping is going to be explained. Therefore, relevant SAR features for the generation of these urban DSMs…
Urban – Synergy of Optical and SAR
Synergy between different sensor systems bares the potential for a more holistic analysis for (urban) environments. Advantages and drawbacks of optical remote sensing data and…
Mathematics
The module “Mathematics” comprises the mathematical background required for the course material of SAR-EDU. To this end, basic matrix operations are introduced, followed by a…
Time & Frequency
The module “Time and Frequency” includes a summary of different types of Fourier transforms which enable to analyze different types of signals (continuous/discrete, periodic/non-periodic). Different…
Filter & Aliasing
The module “Filter Design & Aliasing” is intended to provide the basic understanding of the design and use of filters in time/space and frequency domain.…
Radar physics
The module “Physics” provides a brief introduction to the physical background related to SAR imaging. First, the distribution of signal wavelengths along the electromagnetic spectrum…
Estimation Theory
The module “Introduction to Estimation Theory” provides basic definitions in estimation theory. Moreover, demonstrative examples are given in the context of remote sensing, e.g. ship…
Detection
The module “Detection” introduces the Bayesian decision rule which enables to test a hypothesis with the result “true” or “false”. In this regard, different types…
Parameter Estimation
The module “Parameter Estimation Basics” offers different strategies for estimating an unknown parameter based on given observations. Besides the estimated value, the quantization of the…
Optimal Linear Estimation
The module “Optimal Linear Estimation” extends the idea of parameter estimation to multiple dimensions. In this context, different ways integrating prior knowledge are introduced, including…
Introduction to SNAP
In this tutorial you can learn how to get started with SNAP, beginning with a brief description and download instructions. You will learn how to…
Introduction to SARscape
In this tutorial you can learn how to get started with SARscape, beginning with a brief description and order instructions. You will learn how to…
Introduction to GAMMA
In this tutorial you can learn how to get started with GAMMA, beginning with a brief description and order instructions. You will learn how to…
Classification
The overall objective of the categorization of all pixels in a (SAR) image into semantically meaningful classes is one of the most conducted processing steps…
Change Detection
Change is a direct consequence of the physical composition of the Earth. The continous course of interconnected cycles causes alterations of the land surface. This…
Data fusion
The concept of data fusion describes the combination of two or more images by means of a certain algorithm. This is done to achieve synergetic…
Object based image analysis
The complete partioning of a remote sensing scene into non-overlapping regions/segments/objects is a strongly developing concept in the field of image interpretation. The lesson on…
Speckle filtering
Speckle is a common phenomenon in SAR data, which has its origin in the radar image acquisition principles. In almost all applications in geosciences speckle…
Texture
Image texture is an important feature in image interpretation in optical as well as radar remote sensing. This lesson gives insights into the concept of…
DEM generation with Python
SAR interferometry is widely used for the generation of digital elevation models (DEM). The topographic information is derived by exploiting the phase differences of the…