Measurements of the water vapor absorption cross-sections at two spectral points 2.1 µm and 4.0 transparency windows are performed by optical feedback cavity enhanced spectroscopy (OFCEAS). The self-continuum cross-section, CS, is measured for temperature values 30 47°C (303 320 K) 2853 cm−1 point, corresponding to lowest opacity region window. CS derived from pressure squared dependence self-c...

We derive lower bounds on the maximum-squaredcorrelation (MSC) of binary antipodal signature sets for any number of signatures K and any signature length L with K ≤ L (underloaded systems). We establish the tightness of the bounds for all cases except K = L ≡ 1 (mod 4) and we prove that the minimum total-squared-correlation (TSC) binary antipodal signature sets that were recently designed are, ...