A BICMOS PDF notch circuit for FM-DCSK communication over selective channels

Author

Callegari, Sergio ; Rovatti, Riccardo ; Setti, Gianluca ; Mazzini, G.

Author_Institution

Dipt. di Elettronica Inf. e Sistemistica, Bologna Univ., Italy

Volume

4

fYear

2000

fDate

2000

Firstpage

445

Abstract

A BICMOS circuit is presented which can be electrically programmed to alter the probability density function of a random/chaotic PAM stream and to create a set of null probability. In an FM-DCSK communication system its adoption ahead of the FM modulator allows to place an interval of reduced power in the spectrum of the wideband transmitted signal in correspondence to the in-band multipath related nulls. The expected performance improvement over selective channels is confirmed by the numerical esteem of the bit error rate as a function of the bit-energy/noise-spectral-density ratio

Keywords

BiCMOS integrated circuits; chaos; frequency modulation; modulators; notch filters; probability; BICMOS notch circuit; FM modulator; FM-DCSK communication; bit-energy/noise-spectral-density ratio; current comparator; in-band multipath related nulls; null probability; performance improvement; probability density function; random/chaotic PAM stream; selective channels; wideband transmitted signal; BiCMOS integrated circuits; Bit error rate; Chaotic communication; Delay; Frequency modulation; Frequency shift keying; Probability density function; Pulse modulation; Robustness; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on

Conference_Location

Geneva

Print_ISBN

0-7803-5482-6

Type

conf

DOI

10.1109/ISCAS.2000.858784

Filename

858784