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New designs of infinite impulse response (IIR) wideband digital integrators of second-, third- and forth-order are presented in this paper. These new integrators are designed by a recently proposed magnitude constrained minimax phase-error method. In these designs, the maximum phase response error is minimized under some constraints that the maximum relative magnitude response error is below a prescribed...
Magnitude-error and phase-error constrained optimal designs of finite impulse response (FIR) filters are nonconvex problems due to the nonconvexity of the lower-bound constraint of magnitude at any passband frequency point. In order to solve these problems, the nonconvex constraint region at an arbitrary passband frequency is usually approximated by a convex one. In this paper, a new convex constraint...
Minimum-phase finite impulse response (FIR) filters have found many applications in digital signal processing and communications. An iterative constrained minimal Lp elliptic error method was proposed in [15] to convert the nonconvex constrained Lp magnitude error design of FIR filters into a series of convex constrained Lp subproblems. In this paper, the improved Lawson algorithm by Rice and Usow...
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