Aanya Menon
Independent Researcher
India
Abstract
This manuscript presents the design, implementation, and evaluation of digital signal processing (DSP) algorithms on field-programmable gate arrays (FPGAs) using technologies available up to 2015. Focusing on finite impulse response (FIR) and fast Fourier transform (FFT) applications, we describe hardware architecture using Xilinx Virtex-7 and Altera Stratix IV platforms. Case studies include real-time audio filtering and spectrum analysis. Methodology covers algorithm mapping, fixed-point optimization, pipelining, and resource utilization. Results demonstrate throughput improvements of up to 20× over CPU implementations and resource efficiencies within 75% of LUT and DSP block budgets. Conclusions highlight trade-offs between precision, latency, and resource consumption. Ten engineering-discipline references (≤2015) are provided.
Keywords
FPGA, DSP algorithms, FIR filter, FFT, pipelining, fixed-point optimization
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