Now showing items 1-8 of 8
Evaluering av HF-modemer og flerfrekvenssystemer basert på kanalmålinger på høye breddegrader
The high latitude HF channel has been measured and characterised in terms of Doppler spread, delay spread and signal-to-noise ratio. This is done by the Doppler And Multipath Sounding Network developed(DAMSON) by DERA ...
Visualization of sonar performance
The documenl describes severai methods for sonar performance visualizalion, and how predietion dala can be used by an operator to adjust sonar parameters. A computer program has been implemented to create most of .he ...
A review of empirical equations for missile impact effects on concrete
The literature on empirical equations for predicting penetration, perforation and scabbing is examined, and the relevant equations are given. These formulas are written in a nondimensional form in order to simplify comparison. ...