The Autoregression (AR) cepstrum is put forward to estimate the mean spacing of trabecular bones in cancellous bone based on ultrasonic backscatter signal.

• 对牛胫骨和人离体跟骨松质骨中的超声背散射信号采用AR倒谱法进行了分析,并估计了牛胫骨和人离体跟骨中骨小梁的平均间距。