Configurable architectures have emerged as one of the most powerful programmable signal processing platforms commercially available, obtaining their performance through the use of spatial parallelism. By changing the functionality of these devices during run-time, flexible mapping of signal processing applications can be made. The run-time flexibility puts requirements on the reconfiguration ti...

In this paper , the use of adaptive weights over the radar measurement dimensions of pulse time, antenna receive element, and wideband frequency is extended to cover a much broader range of radar detection problems than was supposed in the original formulation of spacetime adaptive signal processing (STAP). These problems include, among others (1) Adaptive beamforming in three dimensions; (2) D...

Space-time adaptive processing is a powerful tool for interference rejection. However, its performance may significantly degrade in the presence of multipath. Due to the coherence between the multipath of the interference, adaptive methods are not able to satisfactorily remove the interference. In this paper, we present a simulation study to quantify the degradation of a common adaptive method ...

This paper presents performance results for the design and implementation of parallel pipelined Space-Time Adaptive Processing (STAP) algorithms on parallel computers. In particular, the paper describes the issues involved in parallelization, our approach to parallelization and performance results on an Intel Paragon. The paper also discusses the process of developing software for such an appli...

An approach to image mining is described that combines a histogram based representation with a time series analysis technique. More specifically a Dynamic Time Warping (DTW) approach is applied to histogram represented image sets that have been enhanced using CLAHE and noise removal. The focus of the work is the screening (classification) of retinal image sets to identify age-related macular de...

We describe a tool for building parallel applications on distributed memory machines. The central component of this tool is the Parallel Program Factory (PPF). The input to the PPF is a dataaow graph describing the application on the level of functional blocks. Given the graph and a collection of parallel libraries, the PPF automatically selects an eecient parallel implementation of the applica...

A great deal of work on adaptive query processing has been done over the last few years: Adaptive query processing has been used to detect and correct optimizer errors due to incorrect statistics or simplified cost metrics; it has been applied to long-running continuous queries over data streams whose characteristics vary over time; and routing-based adaptive query processing does away with the...

One of the advantages of the joint space time adaptive processing technique is that the freedom degree can be increased greatly without adding any antenna elements, which can improve the ability of the anti-jamming array to reject the narrow band jamming. But the disadvantage is that the computation will be more and more complex with the processing dimension being higher and higher. In this pap...