Title :
Scattering functions from the naval communication channels dataset
Author :
Allen, Jeflery C. ; Reuter, Michael ; North, Richard C.
Author_Institution :
SPAWAR Syst. Center, San Diego, CA, USA
fDate :
6/21/1905 12:00:00 AM
Abstract :
Representative scattering functions are presented from the naval communication channels (NCC) dataset. The NCC dataset contains over-the-air measurements of a mobile HMMWV and a mobile navy ship transmitting to a fixed shore site at 1 Mbps in the 225-400 MHz military UHF band. These HMMWV and ship experiments are representative of urban Marine Corps and the naval littoral UHF line-of-sight (LOS) communication environments. For the ship operating off the coast, a single path model is appropriate with slow fading (1 Hz). For the ship in the harbor, a few large structures “punctuate” the scattering function with additional spreading to 30 μs. In contrast, the HMMWV exhibited faster fading (10 Hz) and multiple paths spread to 7 μs. The same “large-structure” effect is present with a few paths spread to 20 μs
Keywords :
UHF radio propagation; electromagnetic wave scattering; fading channels; marine systems; military communication; 1 Mbit/s; 20 mus; 225 to 400 MHz; 30 mus; 7 mus; LOS communication environments; UHF line-of-sight communication; adaptive filter; harbor; large-structure effect; military UHF band; mobile HMMWV; mobile navy ship; naval communication channels dataset; over-the-air measurements; scattering functions; shore site; single path model; slow fading; urban Marine Corps; Baseband; Communication channels; Delay effects; Delay estimation; Digital filters; Fading; Frequency; Random variables; Scattering; Stochastic processes;
Conference_Titel :
Military Communications Conference Proceedings, 1999. MILCOM 1999. IEEE
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-5538-5
DOI :
10.1109/MILCOM.1999.821354
