Improved Hankel Norm Criterion for Interfered Nonlinear Digital Filters Subjected to Hardware Constraints

2021 ◽  
Author(s):  
Srinivasulu Jogi ◽  
Priyanka Kokil
Keyword(s):  
Digital Filters ◽  
Hankel Norm

scholarly journals Analysis of Memory Effects in Digital Filters with Overflow Arithmetic

2017 ◽  
Vol 7 (3) ◽  
pp. 755
Author(s):  
Mani Kant Kumar ◽  
Haranath Kar
Keyword(s):  
Digital Filters ◽  
External Input ◽  
Memory Effects ◽  
Numerical Example ◽  
Criterion A ◽  
Hankel Norm ◽  
New Criterion ◽  
Overflow Oscillations

<p>This paper deals with the problem of undesired memory effects in nonlinear digital<br />filters owing to the influence of past excitations on future outputs. The nonlinearities under consideration cover the usual types of overflow arithmetic employed in practice. Based on the Hankel norm performance, a new criterion is proposed to ensure the reduction of undesired memory effects in digital filters with overflow arithmetic. In absence of external input, the nonexistence of overflow oscillations is also confirmed by the proposed criterion. A numerical example together with simulation result showing the effectiveness of the criterion is given.</p>

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