### Optimization and Systems Theory Seminar

**Friday November 15 at 11.00** Lindstedtsvägen 25, room 3721

**
Marie Ström**
Chalmers, Göteborg.

###
The Role of the Wideband Ambiguity Function in Future Radar Systems

From an industrial point of view, it is important to be able to use the latest technology and to use it optimally. Although wideband systems have been a trend for several decades, radar signal processing has to a great extent focused on narrowband systems. Thus, we are at an interesting point in time where highly flexible wideband transmitters are available, but where it is not well understood how they should be used.
Following that logic, if we use several wideband transmitters then we can design multiple waveforms, which are simultaneously transmitted from different antennas, or groups of antennas. This is an improvement upon the current technology.
This seminar will discuss how to choose a set of waveforms, and how they can be adapted in order to suppress clutter.
To distinguish clutter from targets we assume that all echo returns with zero velocity are categorized as clutter. Thus, we can formulate an optimization problem where we seek to minimize the correlation between clutter and possible target echoes. As we will show this optimization problem is formulated in terms of the wideband ambiguity function, which is an important concept when investigating performance of radar systems.

Calendar of seminars
*Last update: September 4, 2013.*