Budget - $ 250-500

US only:

Develop a application to run on windows XP/Vista/Windows 7 which simulates a radar PPI display with persistence (see jpg) 360 degrees sweep in about 10sec rotation. The swept picture should paint a stored landscape file to simulate an area. Each time it repeats the sweep a new trace is layed down (although the same picture/file is used). 360 degree sweeps (approx every 1degree) will paint the picture in green (bright to black - intensity level). Your call on 1 degree swept arm data amount but it should be 2-6 bit variation in brightness of green to black.

Once this is done, RS232 comes into play.RS232 will be a source of interference to terrain data. See jpg. With low data numbers read in, delimited by comma\\\'s (<20) nothing should be recognized. Over 20 (or some defined trigger threshold level ) it should displayed as interference in the sweep trace being swept on the associated radial.

That\\\'s really it.
I\\\'m not in a rush for this and its for experimenting purposes of creating an interference effect to radars in general.

Little more info:
What I\\\'d like is for the application to find the RS-232 interface (maybe a comm check of some sort, to be sure it\\\'s working), and an \\\'initialization\\\" file (.ini) which tells the program what, where the terrain file is, maybe even the comm port it should be looking for, and a few other thing like sweep rate, maybe even the 0-255 threshold level (20 for now), etc. I think that would be the simplest way of doing it, for setup, and running.

The RS232 data will be at 115kbaud from a microcontroller board, data sent every 5ms with burst of 300-500uS of data. If the data read in is higher then 20, then it would create interference at that moment in time; creating bright data traces on the terrain map being displayed by the sweeping persistence trace.

I don\\\'t have a terrain map file for this, and not sure how to create one for PPI digital sweeping. Somehow this would have to be worked out. Also sweep rate, number of
vectors or traces per second, and what this would look like with persistence is all unknown. 10 sec rate is about right for 360 degrees. about 2000 vectors should be good
for 360 degrees, or .18 degree per trace sweep. Somehow persistence needs to be adjustable but low priority for now. With a true radar PPI the sweep is non linear vector,
but sweeps a bit with time.

This should be an easy task for a crack programmer. The hardest part is PPI terrain display with persistence.

So 1) PPI Terrain map to be developed such that it could be used for display. (Google map of Virgin Islands are would be nice, with 100m circular range).

2) PPI Radar scope/display (something like enclosed), maybe a toolbar next to it with controls on persistence, sweep speed, raster, Threshold, etc

3) RS232 read in, in real time, and used for Interference to the terrain map. There can be some delay in RS232 reading in but program should keep up with channel for displaying data.

That\\\'s it. There is no price option for &#65533;, but that is my funding limit.

Keywords - Programming

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