Title :
Performance analysis of frequency hopping satellite communication system reducing the transient response of Polyphase DFT filter
Author :
Daeil Lee ; Do sun Kim ; Chul Min Lim
Author_Institution :
Satellite Commun. Dept., Agency for Defense Dev., Daejeon, South Korea
Abstract :
Digital filter banks have played a key role in the area of satellite communication systems over the last decades. Filter banks have been widely used in the field of multi-channel signal processing for their simple efficient implementation architectures. Especially, the polyphase DFT (Discrete Fourier Transform) filter bank is the most preferred filter bank for the uniform spaced multi-channel processing due to its simplicity. In frequency hopped communication systems, however, the use of the polyphase DFT filter bank is limited due to its undesirable transient response from hop-to-hop transitions. In this paper, the transient response of polyphase DFT filter banks in the hop-to-hop transition was analyzed, and the efficient method to overcome such a problem was proposed. Simulation results showed that the proposed schemes could resolve this issue efficiently.
Keywords :
channel bank filters; digital filters; discrete Fourier transforms; frequency hop communication; satellite communication; transient response; wireless channels; Polyphase DFT filter; digital filter bank; discrete Fourier transform filter bank; frequency hopping satellite communication system performance analysis; hop-to-hop transition; multichannel signal processing; transient response reduction; filter bank; frequency hopping; polyphase DFT; transient response;
Conference_Titel :
Communications (APCC), 2014 Asia-Pacific Conference on
DOI :
10.1109/APCC.2014.7091632