Improving the Performance and Resource Utilization of the CASPER FFT and Polyphase Filterbank

Journal of Astronomical Instrumentation

K. KUEHN¹  R. HUPE² 

[1] Argonne National Laboratory, Lemont, IL 60439, USA;Department of Physics, The Ohio State University, Columbus, OH 43210, USA

关键词: Signal processing;    FPGA;    instrumentation;    CASPER;   

DOI  :  10.1142/S2251171716410026

学科分类：天文学(综合)

来源: World Scientific Publishing Co. Pte. Ltd.

【 摘 要 】

The effectiveness of Digital Signal Processing (DSP) solutions for radio-astronomy is limited by the efficiency of the implemented algorithms. Novel implementations of several popular DSP algorithms are presented. Their optimization strategies are discussed and their efficiency is compared to that of the standard Collaboration for Astronomy Signal Processing and Electronics Research (CASPER) library solutions. Compared to CASPER, the PFB-FIR and FFT modules require 73% and 45% of the DSP48E1 resources, with performance dominated by ADC quantization noise for typical radio-astronomy inputs.

【 授权许可】

Unknown