This technique maximizes the sum of the instantaneous bit rate under a target BER constraint by feeding back sub-channel SNRs only. 这种方案在仅需回馈子通道信噪比的条件下，最大化系统的总比特率。
It is normal to expect a certain degree of distortion of the decoded images for very tow-bit- rate applications. 一般认为，在很低比特率场合中解码图像会有一定程度的失真。
The number of slots per frame depends on the bit rate. 每帧的隙数依赖于位速率。
