The algebraic form of Zolotarev polynomials refraining from their parametric representation is introduced. A recursive algorithm providing the coefficients for a Zolotarev polynomial of an arbitrary order is obtained from a linear differential equation developed for this purpose. The corresponding narrow-band, notch and complementary pair FIR filters are optimal in Chebyshev sense. A recursion ...

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...

This work presents two novel methods that simultaneously optimize both the design of a finite impulse response (FIR) filter and its multiplierless hardware implementation. We use integer linear programming (ILP) to minimize number adders used implement direct/transposed FIR adhering given frequency specification. The proposed algorithms by either fixing products (multiplier block adders) or bou...

Finite Impulse Response (FIR) filter model emulates the Inter Symbol Interference (ISI) in a wireless communication channel. An equalizer, typically an Infinite (IIR) filter, behaves as inverse to FIR remove effects of ISI. IIR filters are generally avoided due tractability issues, and with adaptive signal processing algorithm minimize error ISI, is deployed at receiver. However, observed quick...

The paper presents the programmable multiphase clock generator for switched-capacitor finite impulse response (SC FIR) circular memory filters. The proposed programmable clock circuit enables easy division of such kind of filters into different orders smaller sections, which when connected in series, lead to increase in filter efficiency: reduction of chip area, power dissipation, and rising up...

Fractional sample delay (FD) filters are useful and necessary in many applications, such as the accurate steering of acoustic arrays [1], [2], delay lines for physical models of musical instruments [3] [4], and time delay estimation[5]. This paper addresses the design of finite impulse response (FIR) FD filters. The problem will be posed as a convex optimization problem in which the maximum mod...

In this paper, the joint design of transmitter and receiver for multichannel data transmission over dispersive channels is considered. In particular, the practically important case where the transmitter consists of FIR filters and the channel impulse response has arbitrary length is addressed. The design criterion is the minimization of the mean squared error at the receiver output under the co...

This paper addresses the joint design of transmitter and receiver for multichannel data transmission over dispersive channels. The transmitter is assumed to consist of FIR filters and the channel impulse response is allowed to have arbitrary length. The design criterion is the maximization of the information rate between transmitter input and receiver output under the constraint of a fixed tran...

Weighted median smoothers, which were introduced by Edgemore in the context of least absolute regression over 100 years ago, have received considerable attention in signal processing during the past two decades. Although weighted median smoothers offer advantages over traditional linear finite impulse response (FIR) filters, it is shown in this paper that they lack the flexibility to adequately...

This paper presents an adaptive method for maintaining paraunitary constraints on direct-form multichannel finite impulse response (FIR) filters. The technique is a spatiotemporal extension of a simple iterative procedure for imposing orthogonality constraints on nearly unitary matrices. A convergence analysis indicates that it has a large capture region, and its convergence rate is shown to be...