Title :
Spectrum shaping constrained codes for recording
Author :
Vasic, B. ; Denic, S. ; Rathnakumar, R.
Author_Institution :
Arizona Univ., Tucson, AZ, USA
Abstract :
The paper gives a survey of spectrum shaping codes used for digital recording systems. This class of codes belongs to the broader class of modulation codes, which are widely used in recording systems for adjusting the source characteristics to the characteristics of the recording channel. The Shannon noiseless capacities of recording channels are considered, as well as the spectra of maxentropic sequences of M-ary recording constraints. In addition, some practical encoding and decoding schemes are discussed.
Keywords :
channel capacity; codes; data recording; decoding; modulation coding; optical storage; recording; M-ary recording constraints; Shannon noiseless capacities; constrained codes; decoding; digital recording systems; high density data storage; maxentropic sequences; modulation codes; optical recording systems; recording channel capacities; recording channel characteristics; source characteristics; spectrum shaping codes; Channel capacity; Decoding; Digital recording; Error correction; Frequency; Magnetic heads; Modulation coding; Noise shaping; Optical recording; Servomechanisms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1416410
