|Student Name:||Julio Armijos, 2d Lt|
|Thesis:||Complex Signal Processing in the RF Domain|
|Location:||Bldg 640 Rm 317|
|Date & Time:||02/01/2013 at 1000|
|Abstract:|| Existing Electronic Warfare (EW) receivers used in the detection, exploitation and targeting of adversary systems suffer from a degraded performance in the presence of interfering signals. As a result, receivers are not able to detect low-level signals of interest in the presence of interfering signals. This research has four overarching objectives to develop new capabilities to improve the performance of existing EW receivers. The objectives completed in this research are: (1) The augmentation of AFRL’s Ongoing Characterization of a High-Temperature-Superconductor (HTS) Cryogenic tunable Radio-Frequency filter developed by Superconductor Technologies Inc (STI); (2) The creation of a new computer-based Filter Model of the characterized tunable filter bank; (3) The determination of the minimum signal power level detectable in the presence of a strong interferer by a receiver; (4) The derivation and validation of a modified instantaneous frequency equation and the use of this modified equation to detect two signals with a zero-crossing Instantaneous Frequency Measurement (IFM) receiver.