【摘 要】
：
Some fast finite impulse response (FIR) filters use a large number of look-up tables (LUTs) to configure distributed random-access memories (RAMs) and save registers.The distributed RAMs store 2M precomputed sums of M permuted operands in order to simplif
【机 构】
：
School of Data and Computer Science,Sun Yat-sen University,Guangzhou 510006,China;Shenzhen Research
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Some fast finite impulse response (FIR) filters use a large number of look-up tables (LUTs) to configure distributed random-access memories (RAMs) and save registers.The distributed RAMs store 2M precomputed sums of M permuted operands in order to simplify the accumulation,which lays similarity to the solution of Boolean satisfiability (SAT) problem.In this work,a high-speed fault-tolerant FIR digital filter on field pro-grammable gate array (FPGA) is proposed for hardware implementation.A shift register and an RAM are used to arrange the data flow.Generally,an N-tap digital filter only requires N embedded multipliers on FPGA.The better performance is due to high-radix words and low-latency operations.A 32-tap 8-bit FIR digital filter enjoys a throughput of 9.17MB/s,taking 109ns to calculate one convolution.In addition,a fault-tolerant scheme by majority logic is used to correct real-time errors within digital filters.
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