用于数字磁记录器的差错控制技术

为满足我国未来大容量对地观测卫星数据记录的需求。要求磁记录器具有大容量、高码速率、高可靠性的特点。文中介绍了一种应用于磁记录器的差错控制方法 ,在系统传输率达到2 6 0 Mb/s的码率下加入差错控制电路后 ,可以大大提高系统的纠错能力。提供了原理、实现方法以及相关数据

Error Control Method Used in Digital Magnetic Recorder

In order to fit the need of the new type resou rc e satellite,the future digital magnetic recorder used in the satellite is expect ed to be promoted to higher speed over 260Mbps and larger capacity over 300GByte s.This paper describes an effective error control method already used in a speci fic reserach digital magnetic recorder.The system is mainly consisted of four pa rts of encoding,interleave,deinterleave,decoding and is accomplished in CPLD s(Complex Program Logic Device) and ASICs(Applicaton Specific Inteqrated Circmit ).The information about its basic theory and design details is introduced and d iscussed.