PtolemyII - The Dynasty Lives On

As a historical aside the Ptolemaic Dynasty was established by Alexander the Great after he conquered Egypt and had himself installed as Horus the guardian.  Alexander set up his empire such that the territories would send its tithing in gold and manuscripts. The manuscripts were sent initially to the docks in Alexandria harbor then sorted to be sent to one of several Libraries. An incomplete summary  description in https://en.wikipedia.org/wiki/Library_of_Alexandria; a complete description can be found in the book "The Rise and Fall of Alexandria".  Cleopatra was the last generation associate of the Ptolemaic Dynasty, selling Julius Caesar on the grandeur of an empire stretching beyond what the Romans knew at the time.  Erastothenes one of several early mathematicians reaping benefit from the early library system utilized trigonometry to solve the circumference of the earth down to a few hundred thousand kilometers. ( https://en.wikipedia.org/wiki/Eratosthenes )

PtolemyII is a block oriented visual system simulator written by Berkeley EE department initially  supported by Hewlett Packard / Agilent.  Various system types can be modeled via PtolemyII, basic operations of DSP (Digital Signal Processing) are implemented as building blocks enabling higher level systems.  ( https://ptolemy.berkeley.edu/ptolemyII/index.htm ); the simulations are "actor-oriented blocks".  

RF Source plus Carrier Model & Simulation

 
 Adaptive Beam Forming Radar Design:

PtolemyII is BSD licensed, downloaded with hundreds examples, along with toolkit that include simulation waveform outputs.  




C and C++, code generation enables embedded versions of these models to pushed into embedded systems. 

https://ptolemy.berkeley.edu/publications/papers/00/codegen/ 







Comments

Post a Comment

Popular posts from this blog

New Wheels, Old Wheels, Threading the Needle

Image
  Business focal personnel pursue driving efficiencies higher to reduce costs enabling increased marketplace performance.  Technology often helps automate complex processes, reducing costs. Wheels are synonymous with Tech, we can choose to make new wheels, use old wheels or integrate. Threading the Needle requires minimizing the organization delta, using Old Wheels, adding a New Wheel (/ML/Data Science), integration to... Generate growth !!! $100 M plus in 5 Minutes a 10X ROI starting in 2010. Growth shows benefit of New Wheel; New Wheels can be replaced with cheaper Newer Wheels.
Read more

Bahill ( Eye Tracking & Baseball Hall of Fame ), Grad School and Systems Engineering Curricula

Bahill's Lab Research Assistant and Departments System Admin supporting professors research. Bahill is a Systems Control Theory INCOSE fellow http://sysengr.engr.arizona.edu/ https://sie.engineering.arizona.edu/news-events/bahills-baseball-vision-study-still-hit  https://duckduckgo.com/?q=bahill+systems+theory&t=chromentp&ia=web   https://duckduckgo.com/?q=bahill+systems+theory+incose&t=chromentp&ia=web Stark was Bahill's Professor -  https://duckduckgo.com/?q=stark+bahill&t=chromentp&ia=web Together at China Lake they invented night vision capabilities.  In Bahill's lab I supported his eye tracking research group and the optical equipment generating targets, an infrared eye detector glasses, an the analytics packages that recorded the target state space trajectories, the horizontal, vertical and rotational eye movement - state space trajectories, along with the computed differentials between the target and what the eye was looking at.  T...
Read more

Portfolio Derivative Analysis

Image
  Tick data analysis indicating consistent non-linear stock market correlations across multiple days: Gaps indicate opportunity, as stocks are moving opposite -  delta in gap is possible profit  if you short one side and buy high side. Same stock pairs, similar correlation patterns.: Correlated Stocks are chosen by finding most similar profiles in large graphs. This technique can be applied to many different types of fintech systems: stocks, derivatives, crypto. forex and other funds,  Derivatives create co-associated graphs correlated and evolving across time.  In the graphs below the metric is normalized logarithmic (0.0-1.0) generated every three seconds.  The underlying infrastructure combines EMQX, an MQTT broker capable of sustaining 100 M connections fed into a HPC / MPI streaming infrastructure capable of running 100 M active cooperative agent processes coordinated by its own scheduler.  it has been shown to scale up to handle 5000 financial st...
Read more