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System and method for RAM-partitioning to exploit parallelism of RADIX-2 elements in FPGAs
System and method for RAM-partitioning to exploit parallelism of RADIX-2 elements in FPGAs
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机译:用于利用FPGA中的RADIX-2元件的并行性进行RAM分区的系统和方法
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摘要
A system and method are disclosed for providing highly parallel, FFT calculations in a circuit including a plurality of RADIX-2 elements. Partitioned RAM resources allow RADIXes at all stages to have optimal bandwidth memory access. Preferably more memory is made available for early RADIX stages and a “critical” stage. RADIXes within stages beyond the critical stage preferably each need only a single RAM partition, and can therefore simultaneously operate without fighting for memory resources. In a preferred configuration having P RAM partitions and P RADIX stages, the critical stage is stage number log2 P, and until the critical stage, only P/2 RADIX elements can simultaneously operate within each stage. After the critical stage, all RADIXes within each stage can simultaneously operate.
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