Parity bit: a check bit added to a series of binary digits to make the total odd or even according to the logic of the system.
奇偶校验：加于一组二进制数字内的一个校验数元。它跟据系统逻辑，使总数为奇数或偶数。
2
Based on the suitable channel model, an implementation of quasi-cyclic low density parity check codes (QC-LDPC) for acoustic communication system in shallow water is demonstrated.
讨论了准循环低密度校验码(QC - LDPC)在浅海水声信道中的实现方案。
3
All the wave function of a two-photon system with definite angular momentum and parity are found out, the polarization states of photons systematically analyzed.