An ideal limiter may be used to single-bit quantize a noisy sinusoidal signal. This digitization is particularly economical if the signal is to be recorded. lt might then be desired to obtain phase coherence with the limited input signal. A single-bit digital phase-locked loop. utilizing a square wave reference, could be used for this purpose. The effects of coherent square wave demodulation on the signal-to-noise ratio and the (signal-to-noise spectral density) ratio are discussed. The latter result is directly applicable to the performance of the digital phase-locked loop.
Coherent Square Wave Demodulation of Ideal Limiter Output
IEEE Transactions on Aerospace and Electronic Systems ; AES-13 , 4 ; 400-403
1977-07-01
647075 byte
Article (Journal)
Electronic Resource
English