Title :
Small-base location system for narrowband SW-sources
Author :
Teplov, V. Yu ; Bochkarev, V.V. ; Petrova, I.R.
Author_Institution :
Kazan State Univ., Russia
Abstract :
The paper proposes a new technique for measuring parameters of narrowband shortwave signals in the over-the-horizon propagation environment. Issues of small-base diversity-reception antenna design and digital processing of multimode signals are discussed. The designed system of shortwave reception allows for the potential of diversity reception to be retained, at the same time employing spectral-polarizing techniques. The implementation of modern digital signal processing systems offers increased reliability, parameter stability and accuracy in multichannel reception systems. The developed algorithms of signal processing and the designed antenna system allow for a more reliable mode separation and determination of angles of arrival for multimode narrowband tilt ionospheric sounding signals.
Keywords :
HF antennas; HF radio propagation; diversity reception; ionospheric electromagnetic wave propagation; signal processing; digital signal processing; diversity-reception antenna design; multichannel reception; multimode signals; narrowband SW-sources; narrowband shortwave signals; over-the-horizon propagation; small-base location system; spectral-polarizing techniques; tilt ionospheric sounding signals; Antenna measurements; Antennas and propagation; Digital signal processing; Diversity reception; Narrowband; Process design; Signal design; Signal processing; Signal processing algorithms; Stability;
Conference_Titel :
Microwave and Telecommunication Technology, 2004. CriMico 2004. 2004 14th International Crimean Conference on
Print_ISBN :
966-7968-69-3
DOI :
10.1109/CRMICO.2004.183441