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Radio astronomical observations of highly Doppler shifted spectral lines of neutral hydrogen and the hydroxyl molecule must often be made at frequencies allocated to pulsed air surveillance radar in the 1215-1350 MHz frequency range. The Green Bank telescope (GBT) and many other observatories must deal with these terrestrial signals. Even when strong radar(More)
Radio astronomical observations of important L-band spectral lines must often be made at frequencies allocated to pulsed air surveillance RADAR in the 1215–1350 MHz band. Such pulsed interference must be dealt with at the Green Bank Telescope (GBT) and other observatories by " blank-ing " to remove corrupted data. This paper presents a new algorithm which(More)
In this paper, a side-peak cancellation unambiguous acquisition technique is proposed for BOC(n,n) signals. The new test criterion used in this technique is based on a synthesized correlation function which is implemented by producing two different phase pseudorandom noise (PN) code, after shifting with the prompt PN code. In addition, the energy of the(More)
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