[Fourlanders] Fwd: Chaotic Detector to Identify Weak Signals in the Presence of Gaussian Noise

[Jim Worsham]

Check this out.  A digital detector that can detect a sinusoid with an SNR of -30 dB in Gaussian Noise.  Just wow!  Does Joe Taylor know about this?

73
Jim, W4KXY

Sent from my iPad

Begin forwarded message:

> From: "IEEE eNotice" <enotice at ieee.org>
> Date: September 12, 2018 at 6:35:21 PM EDT
> To: <w4kxy at bellsouth.net>
> Subject: Chaotic Detector to Identify Weak Signals in the Presence of Gaussian Noise
> Reply-To: "Tamseel Mahmood Syed" <syed.tamseel at ieee.org>
> 
> If you are having trouble reading this message, click here for the web version. 
> To view complete details for this event, click here to view the announcement
> 
> CHAOTIC DETECTOR TO IDENTIFY WEAK SIGNALS IN THE PRESENCE OF GAUSSIAN NOISE
> 
> IEEE Atlanta Communications Society Chapter presents:
> 
> Dr. John Shields of GTRI who will be giving a brief talk on Chaotic Detectors. Please register at https://events.vtools.ieee.org/m/177203.
> 
>  
> 
> Brief Summary of the talk:
> 
> The detection of very weak signals in the presence of background noise is a challenge of significant
> interest for many radar, sonar, and communications applications. Standard tools such as the Matched
> Filter perform poorly when the signal-to-noise ratio (SNR) is less than about -10 or -20 dB. Therefore,
> the detection of these low SNR signals requires the development of more sophisticated signal processing
> techniques.
> 
> 
> The chaotic detector is a non-linear detector that is designed to couple to a weak signal of a given
> frequency, while (in principle) remaining immune to the background noise. In particular, the non-linear
> Duffing Equation, which describes the motion of a damped, driven harmonic oscillator, has proven to be
> exceptionally well-suited to the detection of weak sinusoidal signals with SNR less than -30 dB.
> 
> 
> This presentation will discuss the design, performance, and limitations of multiple implementations
> of Duffing detectors.
> 
>  
> 
> Please email syed.tamseel at ieee.org with further questions and see below for the event day instructions:
> 
>  
> 
> On the day of the event:
> 
> 1. Lunch is served.
> 
> 2. Parking is available in the parking deck next to the GTRI conference center building. Simply pull up in front of the gate and it should lift up. Please park in the visitor spaces available on the 2nd floor of the parking deck. For further assistance with parking, please email Reggie Ratcliff at Reggie.Ratcliff at gtri.gatech.edu.
> 
>  
> 
> Date and Time
> 
> Date: 11 October 2018
> Time: 11:30 AM to 01:00 PM
> All times are US/Eastern
>  Add to Google Calendar
> Location
> 
> 250 14th St NW
> Atlanta, Georgia
> United States 30318
>  
> Contact
> 
> Email event contact
> Registration
> 
> Registration will open on September 12th, 2018 at 6:00 p.m.
> 
> Speakers
> 
> Dr. John Shields of GTRI
> 
>  
> 
> Topic: Chaotic Detector to Identify Weak Signals in the Presence of Gaussian Noise
> 
> 
> Atlanta Section Chapter, COM19 : http://chapters.comsoc.org/Atlanta
> Manage your IEEE Communications Preferences
> 
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