Knowing {HEAD ~ the desired number} of samples per observation and the properties of the digitizers, receivers, and storage media allows {TAIL ~ a minimum time step parameter} to be calculated 
Knowing { HEAD ~ the desired number } of samples per observation and the properties of the digitizers , receivers , and storage media allows { TAIL ~ a minimum time step parameter } to be calculated
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH