FFT

Fast Fourier transformation (FFT) was considered which substantially saves time when processing large data arrays due to the summation in the spectral domain instead of the multiplication in the space ones. With using of space, aerial, terrestrial and marine gravimetric data the spatial distribution of gravity anomalies in Antarctic region territory on a uniform grid 2′×2′ was constructed and a terrain correction was introduced. Using of FFT-method the regional model of quasigeoid of Antarctic continent and adjoining water areas was constructed.

Design principles of toolkit for characteristics investigation of the digital signal processors generated by Chameleon© C2HDL design tool and implemented to the FPGA of Altera DE1-SoC platform are considered. The structure and organization of toolkit and its components, including the digital signal processor synthesis and implementation in FPGA flow are described. The chain of DSP performance investigation which are generated by the Chameleon© C2HDL design tool using toolkit is formed.