Title :
A simple envelope detector
Author :
Rice, David A. ; Venkatachalam, Vijay ; Wegmann, Michael J.
Author_Institution :
Dept. of Biomed. Eng., Tulane Univ., New Orleans, LA, USA
fDate :
6/1/1988 12:00:00 AM
Abstract :
The use of integration and differentiation as Hilbert transformers for envelope detection is considered. The resulting detectors are causal and do not require exact knowledge of carrier phase or frequency. The method requires square and square root operations, but no multiplication. An upper bound is established for magnitude error
Keywords :
differentiation; error analysis; integration; signal detection; Hilbert transformers; differentiation; envelope detector; integration; magnitude error; square operation; square root operations; upper bound; Amplitude modulation; Envelope detectors; Filters; Frequency estimation; Frequency modulation; Local oscillators; Phase detection; Smoothing methods; Transformers; Upper bound;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
