Fast fourier transform device with parallel lattice architecture

Details Fast fourier transform device with parallel lattice architecture Fast fourier transform device with parallel lattice architecture

1998-09-10

2000-12-05

Ngo, Chuong Dinh

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

G06F 1500

Patent

active

061579386

ABSTRACT:
A Fast Fourier Transform device of a discrete multitone modulation system can be implemented by very large scale integrated (VLSI) architecture. The I-FFT/F-FFT functions are modified to avoid complex-valued operations. A time recursive parallel lattice structure is used to reduce the complexity in hardware requirement for the I-FFT/F-FFT.

REFERENCES:
patent: 4932062 (1990-06-01), Hamilton
patent: 5633817 (1997-05-01), Verhenne et al.
patent: 5991787 (1999-11-01), Abel et al.
Guo, et al., "The Quick Fourier Transform: An FFT Based on Symmetries", IEEE Transactions on Signal Processing, vol. 46, No. 2, Feb. 1992, p. 335-341.
Cariolaro, et al., "An OFDM Scheme with a Half Complexity", IEEE Journal on Selected Areas in Communications, vol. 13, No. 9, Dec.1995, p. 1586-1599.
Wu, et al., "Orthogonal Frequency Division Multiplexing: A Multi-Carrier Modulation Scheme", IEEE Transactions on Consumer Electronics, vol. 41, No. 3, Aug. 1995, p. 392-399.
Zou, et al., "COFDM: An Overview", IEEE Transactions on Broadcasting, vol. 41, No. 1, Mar. 1995, p. 1-8.
Wu, et al., "Algorithm-Based Low-Power Transform Coding Architectures", IEEE ICASSP '95, pp. 3267-3270.
Liu, et al., "Optimal Unified Architectures for the Real-Time Computation of Time-Recursive Discrete Sinusoidal Transforms", IEEE Transactions on Circuits and Systems for Video Technology, p. 168-180 vol. 4, No. 2, Apr. 1994.
Daneshrad, et al., "A 1.6 Mbps Digital-QAM System for DSL Transmission", IEEE Journal on Selected Areas in Communications, p. 1600-1610, vol. 13, No. 9, Dec. 1995.
Sistanizadeh, et al., Mult-Tone Transmission for Asymmetric Digital Subscriber Lines (ADSL), IEEE, 1993, p. 756-760.
Chow, et al., A Discrete Multitone Transceiver System for HDSL Applications, IEEE Journal on Selected Areas in Communications, vol. 9, No. 6, Aug. 1991, p. 895-908.
Im, et al., "51.84 M/bs 16-CAP ATM AN Standard", IEEE Journal on Selected Areas in Communications, vol. 13, No. 4, May 1995, p. 620-632.
A.V. Oppenheim and R.W. Schafer, "Computation of the Discrete Fourier Transform," Discrete-Time Signal Processing, Chapter 9 pp. 586-605, Englewood Cliffs. New Jersey: Prentice-Hall 1989.

Affiliated with

Also associated with

Rating

Fast fourier transform device with parallel lattice architecture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fast fourier transform device with parallel lattice architecture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast fourier transform device with parallel lattice architecture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-970381