每个国家、每个民族都有做损害自己国家和民族事的人。不过,这些人的下场大多数都很悲惨。作者: Orientspear 时间: 2010-10-18 23:13
Compass-M1 Code Analysis
Reverse-engineered pseudorandom noise (PRN) codes in all frequency bands (E2, E5b & E6) of the first Chinese global navigation satellite Compass-M1. Proved that all Compass-M1 codes are Gold codes and derived their code generators as linear shift feedback registers. Applied PRN codes in software receiver to acquire and track Compass-M1 satellite.