www.radartutorial.eu www.radartutorial.eu Radar Basics

Weather Radar Clutter

ambiguous
(folded) returns
urban
echos
ground
clutter
anomalous_____
propagation
a) unfiltered
b) filtered

Figure 1: Radar image with multiple clutter

ambiguous
(folded) returns
urban
echos
ground
clutter
anomalous_____
propagation
a) unfiltered
b) filtered

Figure 1: Radar image with multiple clutter

ambiguous
(folded) returns
urban echos
ground
clutter
anomalous
propagation
a) unfiltered
b) filtered

Figure 1: Radar image with multiple clutter

Weather Radar Clutter

There is a wide range of other reasons (some can be quite strange) why returns and echoes can be received at the weather radar antenna. Some examples are presented here:

Clutter Processing

This page provides an overview of some of the techniques that are commonly used to eliminate clutter and unwanted reflections within a weather radar system to allow a smoothed view of the objects of interest to be constructed. There are a wide range of methods (and algorithms) defined to allow for the different types of clutter to be discriminated and disregarded from the useful returns. These include:

The above issues will be examined in more detail in the module “Radar Basics”. It is noted however that a considerable number of other techniques for the processing and reduction of clutter are also defined and used in some radar implementations (for example, statistical analysis techniques). These are not examined in detail in this module.