ABSTRACT
ABSTRACT
With the characteristics of all day, all weather, high resolution and long distance,
synthetic aperture radar (SAR) has been widely used in military and civil fields. SAR
real-time imaging system and ship monitoring constitute the main direction of the SAR
applied research. In this paper, we present a SAR real-time imaging system by
constructing a multi-tasking embedded system which use the VxWorks OS as operation
system. And a ship detection algorithm based on adaptive windows method is proposed.
In the SAR real-time imaging system, we introduce the real-time operation system
VxWorks to separate the hardware development from the software development, which
reduce the whole system development cycle. In the ship detection algorithm, the
conception of adaptive windows is created to overcome the disadvantages which the
fixed size of detected windows and moving step produced in the traditional ship
detection algorithm.
In this paper, we briefly expound the general principle of SAR imaging algorithm.
And then, we propose an improved SAR image ship detection algorithm based on the
analysis of traditional algorithm, also verify its effectiveness. After that, the hardware
and software development environment under the knowledge of real-time operation
system VxWorks is introduced. In the end of this paper, a SAR real-time imaging
system is introduced in detail. We verify the feasibility of the system by the experiment.
Finally, this paper discussed the farther work.
Keywords：synthetic aperture radar multi-tasking real-time operation system;
VxWorks ship detection
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