Title :
Signal processing in active shielding and direction-finding techniques
Author :
Audone, Bruno ; Bresciani, Fulvio
Author_Institution :
GF Sistemi Avionici, Torino, Italy
fDate :
8/1/1996 12:00:00 AM
Abstract :
On the basis of the analogy between time and space sampling electrical emitters can be identified and localized. The traditional method of screening (passive shielding) and the new technique (active shielding), based on the generation of interference signals capable of creating screening barriers, are compared. By using signal processing techniques the minimization of the mean square error (MSE), taken as the optimality criterion, shows that active screening has performance comparable with passive screening, as long as interference signals are related to the signals which one wants to protect
Keywords :
direction-of-arrival estimation; electromagnetic compatibility; electromagnetic interference; electromagnetic shielding; minimisation; signal sampling; signal synthesis; DOA; EMC; MSE; active shielding; direction of arrival estimation; direction-finding techniques; electrical emitters; interference signals generation; mean square error minimisation; optimality criterion; passive shielding; screening; screening barriers; signal processing techniques; space sampling; time sampling; Antenna arrays; Array signal processing; Frequency; Magnetic shielding; Mutual coupling; Navigation; Sampling methods; Sensor arrays; Signal processing; Signal sampling;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on