A Note on Generalized Linear Phase Conditions for Causal FIR Systems
نویسنده
چکیده
An alternative proof is presented for the necessary conditions for generalized linear phase in causal FIR systems, which appears to be somewhat crisper and more straightforward than the existing proofs available in the literature.
منابع مشابه
On -Channel Linear Phase FIR Filter Banks and Application in Image Compression
This paper investigates the theory and structure of a large subclass of M -channel linear-phase perfect-reconstruction FIR filter banks—systems with analysis and synthesis filters of length Li = KiM + , where is an arbitrary interger, 0 < M , and Ki is any positive interger. For this subclass of systems, we first investigate the necessary conditions for the existence of linear-phase perfect-rec...
متن کاملClosed-Form Design of Maximally Flat IIR Half-Band Filters
Half-band (HB) filters are of great importance and are often used in multirate digital signal processing systems, filter banks and wavelets. In this paper, a new closed-form expression for the transfer function of the maximally flat (MF) infinite-impulse response (IIR) HB filters is presented. The filter coefficients are directly obtained by solving a linear system of Vandermonde equations that...
متن کاملMultichannel Blind Deconvolution of Non minimum Phase Systems Using Information Backpropagation
| W e present a novel method{ lter decomposition approach, for multichannel blind de-convolution of non-minimum phase systems. In 20] we has developed an eecient natural gradient algorithm for causal FIR lters. In this paper we further study the natural gradient method for non-causal lters. We decompose the doubly nite l-ters into a product of two lters, a noncausal FIR lter and a causal FIR lt...
متن کاملOn the Design of Near-Perfect-Reconstruction IIR QMF Banks Using FIR Phase-Compensation Filters
In this paper we describe a novel approach for the design of near-perfect-reconstruction mixed FIR/ allpass-based quadrature mirror filter banks. The design is carried out in the polyphase domain, where FIR filters, obtained via simple closed-form expressions, are employed for compensating the non-linear phase introduced by the allpass filters. Starting from a generalized two-band structure, we...
متن کاملBlind Deconvolution in Nonminimum Phase Systems Using Cascade Structure
We introduce a novel cascade demixing structure for multichannel blind deconvolution in nonminimum phase systems. To simplify the learning process, we decompose the demixing model into a causal finite impulse response (FIR) filter and an anticausal scalar FIR filter. A permutable cascade structure is constructed by two subfilters. After discussing geometrical structure of FIR filter manifold, w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- CSSP
دوره 32 شماره
صفحات -
تاریخ انتشار 2013