The design of an optimal first-order quantizer structure for use in a recursive digital filter
Robert L. Cupo · IEEE Transactions on Acoustics Speech and Signal Processing · 1981
Presented in [1] is a structure useful to increase SNR of a recursive filter with poles close to the unit circle. Presented within this note is a procedure to choose the quantizer coefficient optimally for arbitrarily located poles. The procedure is optimal in the sense that a system loss in SNR is not possible for any pole locations when compared to the Structure without the quantizer.