CORDIC-based HiFi digital FM demodulator algorithm for compact VLSI implementation
Johan Van Ginderdeuren, L. Van Paepegem, J. Lecocq, René Govaerts, Francky Catthoor, P. Vandebroek, S. Slock, T. Claasen, H. De Man · Electronics Letters · 1985
A robust HiFi digital FM demodulation algorithm is discussed. Simulations demonstrate a performance surpassing analogue top-class receivers: a signal/noise ratio better than 90 dB for a sufficiently large carrier/noise ratio and a distortion level below 0.1% at 1 kHz modulation. For compact VLSI implementation, efficient shift-and-add-based CORDIC and IIR filter algorithms are used.