講演抄録/キーワード |
講演名 |
2010-01-21 11:30
Combined Nyquist and compressed sampling method for the wireless multiband receiver ○Doohwan Lee・Takayuki Yamada・Hiroyuki Shiba・Yo Yamaguchi・Kazuhiro Uehara(NTT) SR2009-77 |
抄録 |
(和) |
(まだ登録されていません) |
(英) |
The recently developed compressed sensing theory enables signal recovery from incomplete information with high probability provided that the signal is sparsely represented in some basis. It has also been proved that the random linear projection of an N-dimensional signal vector onto a K-dimensional (K<<N) vector transfers enough information for signal reconstruction. This paper proposes the combined Nyquist and compressed sampling method to implement the compressed sensing theory in wireless multiband receivers. Decoding signals are sampled at the Nyquist rate while sensing signals are sampled at the compressed rate. For this purpose, the decoding signals and the sensing signals are converted into the lower and higher baseband frequencies, respectively. Nyquist sampling and compressed sampling are concurrently performed by a single ADC. First, low rate Nyquist sampling is conducted. Second, inner samples from the previous samples are randomly selected for compressed sensing. This method reduces the sampling burden in dealing with the sensing signals while guaranteeing the realization of Nyquist-rate decoding performance. |
キーワード |
(和) |
/ / / / / / / |
(英) |
compressed sensing / compressive sampling / wireless multiband receiver / l1-norm minimization / / / / |
文献情報 |
信学技報, vol. 109, no. 383, SR2009-77, pp. 21-26, 2010年1月. |
資料番号 |
SR2009-77 |
発行日 |
2010-01-14 (SR) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SR2009-77 |