High Performance Power Spectrum Analysis Using a FPGA Based   Reconfigurable Computing Platform
  Power-spectrum analysis is an important tool providing critical information about a signal. The range of applications includes communication-systems to DNA-sequencing. If there is interference present on a transmitted signal, it could be due to a natural cause or superimposed forcefully. In the latter case, its early detection and analysis becomes important. In such situations having a small observation window, a quick look at power-spectrum can reveal a great deal of information, including frequency and source of interference. In this paper, we present our design of a FPGA based reconfigurable platform for high performance power-spectrum analysis. This allows for the real-time data-acquisition and processing of samples of the incoming signal in a small time frame. The processing consists of computation of power, its average and peak, over a set of input values. This platform sustains simultaneous data streams on each of the four input channels. 
Yogindra Abhyankar (1), Sajish C. (1), Yogesh Agarwal (1), C.R.   Subrahmanya (2) and Peeyush Prasad (2) ((1) Center for Dev...
astro-ph.IM