DFT-based frequency acquisition algorithm for large carrier offsets in mobile satellite receivers von Nezami, M K, Sudhakar, R, Helmken, H

Volltext

Fade slope analysis for Alaska, Florida, and New Mexico ACTS propagation data at 20 and 27.5 GHz von Feil, J., Ippolito, L.J., Helmken, H., Mayer, C.E., Horan, S., Henning, R.E.

Volltext

A three-site comparison of fade-duration measurements von Helmken, H., Henning, R.E., Feil, J., Ippolito, L.J., Mayer, C.E.

Volltext

DFT-based frequency acquisition algorithm for largecarrier offsetsin mobile satellite receivers von Nezami, M.K., Sudhakar, R., Helmken, H.

Volltext

DFT-based frequency acquisition algorithm for large carrier offsets in mobile satellite receivers von Nezami, M K, Sudhakar, R, Helmken, H

Volltext

Faint X-ray sources detected near COS B γ-ray positions von JULIEN, P. F, HELMKEN, H. F

Volltext

Estimation of gaseous absorption using surface and radiosonde meteorological measurements von Pollard, R., Helmken, H.

Volltext bestellen

4U0241+61: a luminous low-redshift QSO von APPARAO, K. M. V, BIGNAMI, G. F, MARASCHI, L, HELMKEN, H, MARGON, B, HJELLMING, R, BRADT, H. V, DOWER, R. G

Volltext

HELIOS 2-Vela-Ariel 5 gamma-ray burst source position von Cline, T. L., Desai, U. D., Trainor, J., Pizzichini, G., Spizzichino, A., Klebesadel, R., Ricketts, M., Helmken, H.

Volltext

A search for very high energy gamma-ray emission from CG 195+4, CG 135+1, and other 100 MeV sources von Helmken, H. F., Weekes, T. C.

Volltext

Variability of LMC X-4 von Epstein, A., Delvaille, J., Helmken, H., Murray, S., Schnopper, H. W., Doxsey, R., Primini, F.

Volltext

Localization of gamma-ray bursts with wide field multiple pinhole camera system in near earth orbit von Gorenstein, P, Helmken, H, Gursky, H

Volltext

A three-site comparison of fade-duration measurements: Ka-band propagation effects on earth-satellite links von HELMKEN, H, HENNING, R. E, FEIL, J, IPPOLITO, L. J, MAYER, C. E

Volltext

Fade slope analysis for Alaska, Florida, and New Mexico ACTS propagation data at 20 and 27.5 GHz: Ka-band propagation effects on earth-satellite links von FEIL, J, IPPOLITO, L. J, HELMKEN, H, MAYER, C. E, HORAN, S, HENNING, R. E

Volltext

Gamma-ray burst observations from HELIOS 2 von Cline, T. L., Desai, U. D., Trainor, J. H., Pizzichini, G., Spizzichino, A., Klebesadel, R. W., Helmken, H.

Volltext

Possible X-ray counterparts of γ-ray sources von Maraschi, L, Markert, T, Apparao, K. M. V, Bradt, H, Helmken, H, Wheaton, W, Baity, W. A, Peterson, L. E

Volltext

Gas čerenkov detector for low energy gamma ray astronomy von Helmken, H., Hoffman, J.

Volltext

ACTS propagation research-a key to increased satellite communication capacity von Henning, R.E., Bauer, R.A., Davarian, F., Helmken, H.

Volltext bestellen

Gamma-ray Observations of the Galactic Centre von HELMKEN, H. F, HOFFMAN, J. A

Volltext

X-ray and radio observations of the structure of Abell 478 von Schnopper, H. W., Delvaille, J. P., Epstein, A., Helmken, H., Harris, D. E., Strom, R. G., Clark, G. W., Jernigan, J. G.

Volltext