Search - fft in vhdl

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[Software Engineering] fpgafft DL : 1: :文章针对目前数字信号处理中大量采用的快速傅立叶变换[FFT] 算法采用软件编程来处理的应用现状,在对FFT 算法进行分析的基础上,给出了用FPGA[Field Programmable Gate Array] 实现的8 点32 位FFT 处理器方案,并得到了系统的仿真结果。最后在Altera 公司FLEX10K系列FPGA 芯片上成功地实现了综合。-Based on the analysis of the FFT algorithm , a reasonable logic structure for a 8-point ,32- bit FFT processor is described and the simulating result is given in this paper. The processor is implemented on the FLEX10Kfamily of FPGAs.
Date : 2025-12-21 Size : 215kb User : 王晓
[Software Engineering] FPGA_4FFT DL : 0: 针对高速数字信号处理的要求,提出用FPGA 实现基- 4FFT 算法,并对其整体结构、蝶形单元进行了分析. 采用蝶算单元输入并行结构和同址运算,能同时提供蝶形运算所需的4 个操作数,具有最大的数据并行性,能提高处理速度按照旋转因子存放规则,蝶形运算所需的3 个旋转因子地址相同,且寻址方式简单输出采取与输入相似的存储器运算单元同时采用3 个乘法的复数运算算法来实现.-In accordance with the requirements of high speed digital signal processing , the algorithmof radix O4 implemented with FPGA and the integrated architecture and butterfly unit are analyzed. With butterfly u2 nit input which is designed by parallel structure and the same address calculation , four operation codes the butterfly unit needs can be provided simultaneously to have the most data parallel and improve the speed of calculation. According to the rotation parameters memory regulation , the addresses of three rotation parame2 ters of butterfly unit are the same with simple style of address generation and similar input and output memo2 ries. The operating unit adopted is implemented by three complex calculation algorithm of multiplication si2 multaneously.
Date : 2025-12-21 Size : 352kb User : 王晓
[Software Engineering] RADIX_64 DL : 0: radix 64 point fft using vhdl design in fpga
Date : 2025-12-21 Size : 124kb User : bowya
[Software Engineering] fft DL : 0: FFT in VHDL code souce
Date : 2025-12-21 Size : 33kb User : jose