Continuously Variable Bandwidth Sharp FIR Filters with Low Complexity
نویسندگان
چکیده
منابع مشابه
Continuously Variable Bandwidth Sharp FIR Filters with Low Complexity
In software defined radio (SDR), sharp filters of different bandwidth are required to fine tune the desired channel. This requires different computational resources and large number of filter coefficients. This paper proposes a continuously variable bandwidth sharp finite impulse response (FIR) filter with low distortion and low complexity. For this, a fixed length FIR filter is used with two a...
متن کاملAutomated Design of Low Complexity Fir Filters
This paper considers the design of low complexity FIR filters. Complexity is reduced by constraining the filters to have integer coefficients, which can be efficiently implemented using primitive operator directed graphs (PODG). Genetic Algorithms (GAS) are used in conjunction with a heuristic graph design algorithm, to provide a solution set which represents different compromises between perfo...
متن کاملNear-perfect-reconstruction low-complexity two-band IIR/FIR QMF banks with FIR phase-compensation filters
In this paper, we present a novel approach for the design of near-perfect-reconstruction mixed allpass-/FIR-based two-band quadrature-mirror filter banks. The proposed design method is carried out in the polyphase domain, where FIR filters are employed for compensating the non-linear phase introduced by the allpass filters. In contrast to previous approaches in literature the FIR phase-compensa...
متن کاملDesign of sharp FIR bandstop filters using quadrature masking filters
A novel computationally highly e cient realization of sharp symmetrical bandstop FIR lter is proposed. The new structure is derived using the frequency-response-masking technique, where the bandedge-shaping lter is derived from half-band lter by substituting each delay of the half-band lter by M delays. The masking lters are unconventional. They are quadrature lters derived from linear combinat...
متن کاملImplementation of Low-complexity Fir Filters Using Difference Methods
In this paper we discuss implementation of low-complexity FIR filters using difference methods. By realizing the differences between coefficients and from them the actual coefficients, the complexity of the filter implementations can be reduced. Here two different methods are proposed for selecting the differences. Both methods can be implemented with low execution times, making it possible to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Signal and Information Processing
سال: 2012
ISSN: 2159-4465,2159-4481
DOI: 10.4236/jsip.2012.33040