介绍了利用速度的损失测定气轨阻尼常数的方法，分析了实验误差的主要来源。
A method that determines the viscous damping constant of air cushion track with measuring the speed losing is introduced and the main sources of experimental errors are analysed.
而基于双层符号常数模的多径水声信道盲均衡器，具有收敛速度快，超量均方误差和计算复杂度小等特点。
The DSCMA-based multipath underwater acoustic channel blind equalizer has many features such as fast convergence, low excess mean square error and low computational complexity, etc.
常数模算法是一种最为常用的盲均衡算法，普遍应用于恒包络信号和非恒包络信号的均衡，但存在收敛速度慢和剩余误差大的缺点。
To solve the problem of slow convergence in the modified constant modulus algorithm (MCMA), a variable step and dual mode blind equalization algorithm is proposed, based on the MCMA algorithm.
常数模算法是一种最为常用的盲均衡算法，普遍应用于恒包络信号和非恒包络信号的均衡，但存在收敛速度慢和剩余误差大的缺点。
To solve the problem of slow convergence in the modified constant modulus algorithm (MCMA), a variable step and dual mode blind equalization algorithm is proposed, based on the MCMA algorithm.
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