Title :
Blind Equalization of 8-Psk Signals Aired in the High-Frequency Band
Author :
Casey, Ryan B. ; Karp, Tanja
Author_Institution :
Signal Exploitation & Geolocation Div., Southwest Res. Inst., San Antonio, TX
Abstract :
In this paper we demonstrate the feasibility of blind equalization of 8-PSK sequences that have been sky wave propagated over a distance of 400 miles using the HF band. Results obtained from our measurements suggest that the channel is varying slowly enough to allow a block-based equalizer coefficient update. A comparison between blind and informed, and block-based and adaptive equalization is performed using mean squared error, symbol error rates, and constellation plots
Keywords :
HF radio propagation; blind equalisers; mean square error methods; phase shift keying; adaptive equalization; blind equalization; block-based equalizer coefficient; constellation plots; high-frequency band 8-PSK signals; mean squared error; sky wave propagation; symbol error rates; Adaptive equalizers; Additive noise; Blind equalizers; Colored noise; Error analysis; Frequency; Hafnium; Phase shift keying; Resonance light scattering; Working environment noise;
Conference_Titel :
Digital Signal Processing Workshop, 12th - Signal Processing Education Workshop, 4th
Conference_Location :
Teton National Park, WY
Print_ISBN :
1-4244-3534-3
Electronic_ISBN :
1-4244-0535-1
DOI :
10.1109/DSPWS.2006.265456
