Beamforming implementation for CUDA

The beamforming [1] implementation has the following requirements: - cuda toolkit 5.5 compatible - GTX480 GPU compatible - kernel code implementation emphasis - caller function implementation - must use provided existing skeleton code for reading the input and output; validation tests included - developer must be able to test and develop locally (i.e. access to CUDA capable device on which to compile and run code) - documentation in code (including design decisions: i.e. why this is used) - positive speedup - preferably without using additional libraries [1] [login to view URL]