Rank: 51 based on 707 downloads (last 30 days) and 10 files submitted
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Dick Benson

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Company/University
The MathWorks Inc

Personal Profile:

After 30 years as a development engineer in Test and Measurement, I joined the MathWorks as an Application Engineer. I am stationed on the West Coast (Saratoga, CA). My interests include T&M, signal processing, controls, and communications.

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Files Posted by Dick View all
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17 Apr 2012 Screenshot Visualizing Wave Propagation Visualize wave propagation through media with different impedances and propagation velocities. Author: Dick Benson communications, physics, education, electromagnetic, propagation, wave 76 1
  • 5.0
5.0 | 1 rating
06 Apr 2012 Screenshot PSK31 Model with Symbol Timing and Carrier Recovery Updated version of PSK31 communication standard that is now R2009B-R2012A compliant. Author: Dick Benson timing recovery, fec, pll, bpsk, wireless, qpsk 57 7
  • 4.83333
4.8 | 6 ratings
26 Mar 2012 Screenshot High Speed ADC Models Interleaved, Successive Approximation, and Pipelined Sub-Ranging ADC models. Author: Dick Benson analog to digital con..., a to d, adc, data converter, mixedsignal 67 0
12 Dec 2011 Screenshot ATSC: From RF to Video A set of models to process an ATSC RF signal and output an MPEG II video transport stream. Author: Dick Benson atsc, video, advanced television s..., synchronization, vsb, 8vsb 27 0
  • 5.0
5.0 | 1 rating
12 Dec 2011 Screenshot Using S-Parameters in MATLAB & Simulink Example of rf amplifier design using S parameters in both MATLAB and Simulink. Author: Dick Benson wireless, rf, network, analyzer, sparameter, scattering 52 11
  • 4.42857
4.4 | 7 ratings
Comments and Ratings by Dick
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06 Oct 2010 Configurable Simulink Model for DC-DC Converters with PWM PI Control A Simulink model configurable to buck, boost and buck-boost DC-DC converters with PWM PI control Author: Yi Cao

Nice job, thanks for your efforts.

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14 May 2012 Pilot Directed Continuous Synchronization of OFDM Model of a generic OFDM system with closed loop control of carrier and timing recovery. Author: Dick Benson Karthik

Very helpful for beginners . Thanks a lot for uploading .

09 May 2012 Using S-Parameters in MATLAB & Simulink Example of rf amplifier design using S parameters in both MATLAB and Simulink. Author: Dick Benson Matthias

Hi, I took a closer look onto the sparam_1.mdl and there are two things which are not completely clear to me. Gs=b1/a1, Gl=b2/a2 are both 0.5 in the *.mdl file, but in reality that should be also a function because the coefficients depending on the frequency, right? The second is, how do I feed the a1 part, because I want to embed it into a circuit simulation (I don't understand the Base band fcn block in the mdl-file)

Hope to get an answer.

See you,
26 Apr 2012 Visualizing Wave Propagation Visualize wave propagation through media with different impedances and propagation velocities. Author: Dick Benson Brunelle, Patrice

Excellent job Dick.
When you disconnect the load and let the line open-circuit you can even observe the well known phenomea of bouncing back wave: http://www.allaboutcircuits.com/vol_2/chpt_14/4.html
10 Feb 2012 Analog / Mixed Signal Examples Extensive collection of examples for analog and mixed signal design work. Author: Dick Benson Pillonnet, Gael

Be careful ! The varactor is badly modelling.
The transient don't fit with the behaviour of a varactor. To check the problem, please try to charge the cap through a resistor and calculate the energie provided by the source. You don't obtain E=CxV2 (true relationship with varactor). Something wrong.
Now, try to put the integrator block outside the feedback. It works, but limited by the solver (if the order of function is greater than 1).
22 Nov 2011 Analog / Mixed Signal Examples Extensive collection of examples for analog and mixed signal design work. Author: Dick Benson Woodward, Mike

If you're interested in this submission, you might also like the new, free mixed-signal library available from here: http://www.mathworks.com/programs/mixed-signal/index.html
Top Tags Applied by Dick
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wireless, communications, synchronization, timing recovery, carrier recovery
Files Tagged by Dick View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
17 Apr 2012 Screenshot Visualizing Wave Propagation Visualize wave propagation through media with different impedances and propagation velocities. Author: Dick Benson communications, physics, education, electromagnetic, propagation, wave 76 1
  • 5.0
5.0 | 1 rating
06 Apr 2012 Screenshot PSK31 Model with Symbol Timing and Carrier Recovery Updated version of PSK31 communication standard that is now R2009B-R2012A compliant. Author: Dick Benson timing recovery, fec, pll, bpsk, wireless, qpsk 57 7
  • 4.83333
4.8 | 6 ratings
26 Mar 2012 Screenshot High Speed ADC Models Interleaved, Successive Approximation, and Pipelined Sub-Ranging ADC models. Author: Dick Benson analog to digital con..., a to d, adc, data converter, mixedsignal 67 0
12 Dec 2011 Screenshot ATSC: From RF to Video A set of models to process an ATSC RF signal and output an MPEG II video transport stream. Author: Dick Benson atsc, video, advanced television s..., synchronization, vsb, 8vsb 27 0
  • 5.0
5.0 | 1 rating
12 Dec 2011 Screenshot Using S-Parameters in MATLAB & Simulink Example of rf amplifier design using S parameters in both MATLAB and Simulink. Author: Dick Benson wireless, rf, network, analyzer, sparameter, scattering 52 11
  • 4.42857
4.4 | 7 ratings

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