The most important and widely applied channel constraints are those the runlength limiting (RLL) ones. Besides the runlength, there frequently is a set constraint for the accumulated charge or for some of its transforms. For the binary channel Y:Y/sub i//spl isin/{-1,+1} such constraints can be described as |/spl Sigma//sub i=0//sup /spl infin//h/sub i/Y/sub n-i/|/spl les/c. The constraints complying with this is referred as the generalized charge constraint, and those are set to satisfy some spectral requirement.
展开▼
机译：最重要和广泛应用的通道限制是游程限制（RLL）。除了游程长度之外，对于累积电荷或其某些变换，通常存在一个设置约束。对于二进制通道Y：Y / sub i // spl isin / {-1，+ 1}，此类约束条件可以描述为| / spl Sigma // sub i = 0 // sup / spl infin // h / sub i / Y / sub ni / | / spl les / c。符合此条件的约束条件称为广义电荷约束条件，将其设置为满足某些频谱要求。
展开▼
