Title :
Comm-through-CREW Using Broadband Signal Processing ECCM
Author_Institution :
CP Commun. Eng. Corp., Mount Vernon, OH, USA
Abstract :
This paper describes recent advances in broadband radio-frequency interference (RFI) reduction and anti-jam (AJ) signal processing. The primary area of investigation for this technology is in frequency-hopped (FH) communications, such as PRC-117, in close proximity to a counter-radio-frequency-improvised explosive-device (RFIED)-electronic warfare (CREW) emitter. A novel low-noise amplifier (LNA) construction combining conventional linear characteristics, nonlinear biased inverting limiter (BIL) characteristics, and a feedback control loop provides robust, inexpensive AJ to communications receivers. System modeling suggests dramatic communications improvement in tactical EW environments is feasible, and that intermodulation (IM) distortion products tend to be diversified by both the CREW and communications frequency hopping.
Keywords :
electronic countermeasures; feedback; frequency hop communication; interference suppression; intermodulation distortion; low noise amplifiers; signal processing; ECCM; PRC-117; RFIED-CREW emitter; antijam signal processing; broadband radiofrequency interference reduction; broadband signal processing; counter radiofrequency improvised explosive device; electronic countermeasures; electronic warfare; feedback control loop; frequency-hopped communications; intermodulation distortion; low noise amplifier; nonlinear biased inverting limiter; tactical EW; Bit error rate; Broadband communication; Interference; Jamming; Passband; Radio frequency; Receivers; Anti-jam; CREW; ECCM; RFI suppression; broadband signal processing; frequency-hop; interference suppression; nonlinear signal processing; radio frequency interference;
Conference_Titel :
Military Communications Conference (MILCOM), 2014 IEEE
Conference_Location :
Baltimore, MD
DOI :
10.1109/MILCOM.2014.139
