Then what you need is stronger abs, not a more muscular back. The abs support the lower back and help maintain its alignment. Work your abs and stretch your hamstrings and you'll stop putting your back out.
If anyone knows of an explanation of the above with diagrams, I suspect that many readers who are not RF engineers would find it useful.
I was looking for this before but couldn't find it. A much more detailed discussion of spread spectrum modulation (with pictures:-) http://sss-mag.com/primer.html#c
Wow... Years without a single post. And now two in less than an hour
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Then what you need is stronger abs, not a more muscular back. The abs support the lower back and help maintain its alignment. Work your abs and stretch your hamstrings and you'll stop putting your back out.
I was looking for this before but couldn't find it. A much more detailed discussion of spread spectrum modulation (with pictures :-)
http://sss-mag.com/primer.html#c
Wow... Years without a single post. And now two in less than an hour
Trimble has a really good "Intro to GPS" Tutorial which covers how pseudo-random codes are used. The entire tutorial is here:
http://www.trimble.com/gps/fsectio ns/aa_f3.htm
while the section on pseudo-random codes is here: /aa_hw3
http://www.trimble.com/gps/howworks
It even discusses jamming (briefly).