Title :
Nonlinear model and readback distortions of MR head
Author :
Guixi, Liu ; Wanhai, Yang
Author_Institution :
Sch. of Electron. Eng., Xidian Univ., Xi´´an, China
Abstract :
Magnetoresistive (MR) heads have been widely used in high density magnetic recording systems. The MR head non-linearity degrades the detection performance. A 3rd-order polynomial model is used to characterize the MR head non-linearity. With the extracted dipulse method, the readback distortions of the MR head are investigated through simulation. Some simulation results are given.
Keywords :
digital magnetic recording; magnetic heads; magnetoresistive devices; nonlinear distortion; polynomials; sequences; 3rd-order polynomial model; MR head; detection performance; extracted dipulse method; high density magnetic recording systems; magnetoresistive heads; nonlinear model; nonlinearity; readback distortions; Degradation; Digital magnetic recording; Magnetic heads; Magnetic recording; Magnetoresistance; Nonlinear distortion; Polynomials; Random sequences; Signal to noise ratio; Transfer functions;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894827
