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This paper describes the implementation of a high throughput FFTs implemented on FPGAs, using a modified version of the Radix 2N architecture. The implementation uses a synthesis method which supports “super-sampling” to provide very high throughput. Special vector structures in the tools and hardware architecture are supported where complex vectors form the input on each clock cycle, and multiple...
This paper presents a Radix-2 Single-Path Delay Feedback (R2SDF) configurable processor to calculate 64/128/512/1024/2048-point Fast Fourier Transform (FFT). Such range of FFT input sequences allows for the realization of the widely used wireless protocols IEEE 802.11n (WLAN) and the IEEE 802.16 (WiMax). The presented R2SDF configurable processor, as well as a fully sequential configurable processor...
Design and optimized implementation of a 16-bit and 32-bit 1024-point pipeline FFT processor is presented in this paper. The architecture of the FFT is based on R22SDF algorithm with new pointer FIFO embedded with gray code counters. It is implemented in Spartan-3E, Spartan-6 and Virtex-4 devices and fully tested by method of co-simulation using SMIMS® VeriLink® as a bridge that connects software(Matlab...
A new FFT architecture for real-time implementation of large FFTs is presented. The architecture supports both, high-throughput and variable-length processing capabilities. The implementation is configurable at run-time, in order to compute power-of-two length ranging from 16 to 2n. It supports efficient integration of data scaling techniques. A radix-23 DIT FFT algorithm is derived, which minimizes...
We develop Superscalar Architecture to compute fixed point FFT (Fast Fourier Transform). Some high-speed and time sensitive real time applications demand far better and efficient implementation of FFT and call for improved novel architectures. This account for bringing in place an embedded custom hardware for instance FPGA that helps us rally things in parallel yielding better performance. We take...
The OFDM module in the MB-OFDM UWB transmitter is necessarily operated at 528 MHz. This is really a challenging task because the OFDM in the UWB module has to calculate 128-point IFFT. Earlier papers used radix-24 SDF algorithm with parallel processing architectures of block size two to achieve the required speed and implemented the module on ASIC. In this paper a novel scheme ldquomodified radix-2...
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