Computing architectures for DFT-based HF-band energy detection
Jeong–A Lee, Kiseon Kim · International Journal of Electronics · 1993
A set of computing architectures to implement discrete Fourier transform processors that measure the bandpass filter energy at a certain component in the high-frequency (HF) band are presented. The area-time assessment is fully examined for diversified schemes such as the bit-serial, parallel with non-redundant or redundant arithmetic, and two-level pipelined while considering CORDIC as a basic processing element. We achieve an analytic assessment for the HF energy detector via the scheme utilizing non-pipelined at the macro-level and parallel redundant arithmetic and fully-pipelined at the micro-level. This scheme is shown to improve the component utilization factor more than using pipelined at the macro-level. The comparison table shows the CORDIC-based DFT processor to be a prospective solution in VLSI for a wide range of input bit rates.