论文信息 - ARCTAN Differentiated digital demodulator for FM/FSK digital receivers

ARCTAN Differentiated digital demodulator for FM/FSK digital receivers

In this paper a new FM/FSK digital demodulator based on the digital ARCTAN algorithm, is proposed. The proposed digital FM/FSK demodulator is called ARCTAN Differentiated demodulator. The demodulator is based on quadrature ARCTAN algorithm. Direct division of quadrature signals rejects amplitude modulation components. The proposed demodulator works for both narrow & wide band FM/FSK signals & it is suitable for integration in digital-IF receivers. Behavioral simulation analysis is shown for system validation.

[1] Hyuck M. Kwon,et al. A novel digital FM receiver for mobile and personal communications , 1996, IEEE Trans. Commun..

[2] Masao Nakagawa,et al. Digital Signal Processing Type Stereo FM Receiver , 1986, IEEE Transactions on Consumer Electronics.

[3] Masafumi Hagiwara,et al. RANGE EXTENDED TANGENT TYPE FM DEMODULATOR WITH WIDE LINEAR RANGE USING DIGITAL SIGNAL PROCESSING. , 1985 .

[4] B. Song,et al. A 5-MHz IF digital FM demodulator , 1999, IEEE J. Solid State Circuits.

[5] J. Garodnick,et al. Response of an All Digital Phase-Locked Loop , 1974, IEEE Trans. Commun..

[6] E.K.B. Lee. Zero-crossing zero-IF demodulator , 1995 .

[7] Noel Boutin,et al. An arctangent type wideband PM/FM demodulator with improved performance , 1992 .