Secondly and mainly, it discuss the PWLAN RF propagation model correction.
其次，讨论了PWLAN网络的无线传播模型校正。
The finite element model correction of large space truss is done by identifying its joint fixity factor based on neural net.
本文提出了依据神经网络方法完成大型空间网架结构节点固结系数的识别，实现空间网架结构有限元模型修正的方法。
The principle, application scopes, model establishment and model correction of the soft measurement as well as its influence upon detection and control systems are discussed.
讨论了软测量的原理、应用场合、模型建立和模型校正，以及它对检测和控制系统的影响。
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